Procom Network Router EVS200 User Manual

User Manual

VOR/ILS Analyzer EVS200

0796.1800.02

0798.1988.12-08

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EC Certificate of Conformity

Certificate No.:

This is to certify that

Equipment type:

Designation:

0201

EVS200

VOR/ILS Analyzer

796.1800.02

Order No.:

complies with the provisions of the Directive of the Council of the European Union on the

approximation of the laws of the Member States

− relating to electrical equipment for use within defined voltage limits

(73/23/EEC revised by 93/68/EEC)

− relating to electromagnetic compatibility

(89/336/EEC revised by 91/263/EEC, 92/31/EEC, 93/68/EEC)

Conformity is proven by compliance with the following standards:

− EN61010-1 : 1994 + A2 : 1996 + A2Ber : 1998 + Ber1 : 1998

− EN50081-1 : 1992

− EN50082-1 : 1992

Affixing the EC conformity mark as from 2002-01

ROHDE & SCHWARZ GmbH & Co. KG

Werk Köln

Graf-Zeppelin-Str. 18, D-51147 Cologne

Cologne, 2002-01-17

Quality management 5C-Q / Norres

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Safety Instructions

This unit has been designed and tested in accordance with the EC Certificate of Conformity and has left the

manufacturer’s plant in a condition fully complying with safety standards.

To maintain this condition and to ensure safe operation, the user must observe all instructions and warnings

given in this operating manual.

Safety-related symbols used on equipment and documentation from R&S:

Observe

operating

instructions

Weight

indication for

units >18 kg

PE terminal

Ground

terminal

Danger!

Warning!

Ground

Attention!

Electrostatic

sensitive devi-

ces require

Shock hazard Hot surfaces

special care

1. The unit may be used only in the operating con-

ditions and positions specified by the manufac-

turer. Unless otherwise agreed, the following

applies to R&S products:

7. It is not permissible to interrupt the PE conduc-

tor intentionally, neither in the incoming cable

nor on the unit itself as this may cause the unit

to become electrically hazardous.

Pollution severity 2, overvoltage category 2, IP

degree of protection 2X, altitude max. 2000 m.

The unit may be operated only from supply net-

works fused with max. 16 A.

Any extension lines or multiple socket outlets

used must be checked for compliance with rele-

vant safety standards at regular intervals.

8. If the unit has no power switch for disconnection

from the AC supply, the plug of the connecting

cable is regarded as the disconnecting device.

In such cases it must be ensured that the power

plug is easily reachable and accessible at all

times (length of connecting cable approx. 2 m).

Functional or electronic switches are not suit-

able for providing disconnection from the AC

supply.

2. For measurements in circuits with voltages V_rms

> 30 V, suitable measures should be taken to

avoid any hazards.

(using, for example, appropriate measuring

equipment, fusing, current limiting, electrical

separation, insulation).

3. If the unit is to be permanently wired, the PE

terminal of the unit must first be connected to

the PE conductor on site before any other con-

nections are made (installation and cabling of

the unit to be performed only by qualified techni-

cal personnel).

If units without power switches are integrated in

racks or systems, a disconnecting device must

be provided at system level.

9. Applicable local or national safety regulations

and rules for the prevention of accidents must

be observed in all work performed.

4. For permanently installed units without built-in

fuses, circuit breakers or similar protective de-

vices, the supply circuit must be fused such as

to provide suitable protection for the users and

equipment.

Prior to performing any work on the unit or

opening the unit, the latter must be discon-

nected from the supply network.

Any adjustments, replacements of parts, main-

tenance or repair may be carried out only by

authorized R&S technical personnel.

Only original parts may be used for replacing

parts relevant to safety (eg power switches,

power transformers, fuses). A safety test must

be performed after each replacement of parts

relevant to safety.

(visual inspection, PE conductor test, insulation-

resistance, leakage-current measurement, func-

tional test).

5. Prior to switching on the unit, it must be ensured

that the nominal voltage set on the unit matches

the nominal voltage of the AC supply network.

If a different voltage is to be set, the power fuse

of the unit may have to be changed accordingly.

6. Units of protection class I with disconnectible

AC supply cable and appliance connector may

be operated only from a power socket with

earthing contact and with the PE conductor con-

nected.

continued overleaf

095.1000 Sheet 17

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Safety Instructions

Ensure that the connections with information tech-

nology equipment comply with IEC950/EN60950.

11. Lithium batteries must not be exposed to high

temperatures or fire.

12. Equipment returned or sent in for repair must be

packed in the original packing or in packing with

electrostatic and mechanical protection.

13. Electrostatics via the connectors may da-

mage the equipment. For the safe handling

and operation of the equipment, appropriate

measures against electrostatics should be im-

plemented.

Keep batteries away from children.

If the battery is replaced improperly, there is

danger of explosion. Only replace the battery by

R&S type (see spare part list)

Lithium batteries are suitable for environmental-

ly-friendly disposal or specialized recycling. Dis-

pose them into appropriate containers, only.

14. Any additional safety instructions given in this

manual are also to be observed.

Do not short-circuit the battery.

095.1000 Sheet 18

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VOR/ILS Analyzer EVS200

Contents

Chapter

Page

Operator Information

- Important operator information

- Unpacking

- Application of the unit

- Characteristics of the unit

- Unit layout frontview

- Unit layout rearview

Preparation for Operation

- Placing the unit

- Mains operation

Mains connection

- DC connection

Assembling the FO Cable Jack

Finishing and connection to the Vehicle Board Supply

- Connection of Signal/Control Inputs/Outputs

Antenna connection

AF OUT

RS-232-Interface

External AF input

DSP output

Operation

- Switch On/switch Off the unit at mains supply

- Switch On/switch Off the unit at VDC supply

- Switch on procedure

- Selftest (BITE)

- Battery operation

- Operation of the unit

General operating instructions of the VOR/ILS Analyzer EVS200

SETUP-Mode

Operating instructions of SETUP-Mode

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0.1

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VOR/ILS Analyzer EVS200

Chapter

Contents

Page

ILS-Mode

Operating instructions of ILS-Mode

Operating instructions of Y / t setup menu

Operating instructions of STORE DDM menu

Signal parameters on ILS Display

VOR-Mode

Operating instructions of VOR-Mode

Signal parameters on VOR Display

BEACON-Mode

Operating instructions of BEACON-Mode

Signal parameters on BEACON Display

∆ LEVEL-Mode

Operating instructions of ∆ Level-Mode

Storing and recalling reference levels

Signal parameters on ∆ Level Display

SPECTRUM-Mode

Operating instructions of Spectrum-Mode

- RS-232-Interface operation

COM-Parameter

Handshake

Control commands

Unit related control commands

Mode related control commands

ILS-Mode

VOR-Mode

∆ Level-Mode

Beacon-Mode

Interfaces

- Antenna input

- AF output

- Headphone connection

- XY-Tracer connection

- External AF input

- RS-232-Interface

- External VDC connection

- Mains connection

0796.1800.02

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VOR/ILS Analyzer EVS200

Chapter

Contents

Page

Service

- Service

- Warranty

Technical Specification

- Technical data

- General data

- Accessories

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VOR/ILS Analyzer EVS200

Chapter 1: Operator Information

Important operator information

The symbols used in this description have the following meaning.

Attention: increased vigilance!

Indexfinger: indicates important details

/ꢀ Workstep, alphanumeric sequence definition of a workstep!

Before connecting the unit to a vehicle’s 12-VDC board supply, pay

attention that the battery’s negative pole is connected to ground

(GROUND ) of the vehicle!

Finishing and connection of the auxiliary FO cable jack is

described in chapter „VDC connection" in section 2 "Preparation for

Operating".

Whilst time of warranty a defective internal battery (option) may

only be changed by Rohde & Schwarz service personnel!

Also after the warranty time it is recommended that

only specialists change the internal battery.

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VOR/ILS Analyzer EVS200

Chapter 1: Operator Information

Unpacking

1. Unpack the VOR/ILS Analyzer EVS200.

2. Remove the protective covers.

3. Inspect the unit for evident damage (visual check).

4. Check the auxiliary accessory!

FO-cabel jack (0018.6700.00)

power cable

operating instructions (0798.1988.12-07)

Keep the packing material for reusing!

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VOR/ILS Analyzer EVS200

Chapter 1: Operator Information

Application of the unit

The VOR/ILS Analyzer EVS200 is used for checking terrestrial radio navigation facilities at airports.

Following components of ILS- and VOR-systems can be checked:

ꢀ

approach to land ILS (Instrument Landing System)

ꢀ

direction localizer LLZ (Localizer)

glideslope system GS (Glideslope)

OM (Outer Marker)

MM (Middle Marker)

IM (Inner Marker)

108 to 118 MHz

320 to 340 MHz

75 MHz

ꢀ

short and medium range navigation

VOR (VHF Omni Range) omnidirectional beacon 108 to 118 MHz

ꢀ

The following measurements can be carried out:

ꢀ

DDM (indication also in 1 / µA / %), SDM, modulation factor

absolute level

delta level (∆ level)

VOR parameter

ILS parameter

75-MHz beacon parameter

Ranges for measurements are e.g:

ꢀ

dynamic runway surveying (limited through high measurement speed

(90 measurements/s))

ꢀ

static distant field surveying

function monitoring of transmitting field stations with data tele-transmitting

surveying of transmitting antenna characteristics through "∆level-mode"

Clearance & Glidepath (common parameter analysis without disconnecting the

transmitting station)

ꢀ

measuring and evaluating of corresponding parameters at high interference intensity

Due to versatile power supply facilities the VOR/ILS Analyzer EVS200 is suitable for operation in field

(battery supply), in vehicles (12-V board supply), and in the lab (AC supply). Among others it is pos-

sible to remote control the unit via the RS-232-Interface and recalling all obtained data. Further more

the corresponding parameters of the DSP can be taken at the multifunction output (DSP OUT) for

further analysis (e.g. XY-tracer).

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VOR/ILS Analyzer EVS200

Chapter 1: Operator Information

Characteristics of the unit

Remarkable characteristics of the VOR/ILS Analyzer EVS200 are:

ꢀ

high accuracy

easy handling

low power consumption

very compact and light design for mobile operation

battery operation (option) for mobile operation

external DC operation for mobile operation

remote control through RS-232-Interface

selftest facillty (BITE)

digital signal processing (DSP) on ILS and VOR analysys

high rapidity of measurement (ILS = 90 measurements/s)

immediately display of all measurement data

DDM-/SDM-measurements

calibration of Y / t recorder (DDM = 0)

∆ level measurements (4 reference levels can be stored)

installed loudspeaker and headphone output

suitable for 19" rack assembly

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VOR/ILS Analyzer EVS200

Chapter 1: Operator Information

Unit layout frontview

LC display description

battery indication

(only for built-in battery (option))

mode indication

bargraph center frequency indication

receiver frequency

bargraph indication

receiver signal level

squelch threshold

receiver signal level

signal parameters

softkeys

Softkeys

Softkeys (program dependent functional keys)

are allocated to the conforming operation mode.

The softkey function is indicated on the display.

LC display

(illuminated dot matrix display)

POWER

Set the unit into operation, on mains

On the display all active modes are

sensitive (grey background)!

supply and in postion "Standby" the

installed battery (Option) will be

charged.

volume control

mode keys

With the potentiometer "Volume" the

loudspeaker´s and headphone´s

volume can be set.

The mode keys select the corresponding

measurment and setting mode which will

be indicated by the yellow LED.

A selected mode will be indicated on the

display. Mode settings will be performed

with the softkeys.

headphone connector

only for connecting headphones

with soundproofing!

e.g. R&S order no.0708.9010.00

rollkey

On principle all possible menu settings will be performed

with the rollkey.

AF output

BNC socket

output level:

200 mV_rms/ 50 Ω

by 50 % AM part

An exception is the "Setup-Menu" where settings must

be performed with the designated softkeys..

turning direction

for increasing values

turning direction

for decreasing values

antenna input

BNC socket

frequency setting

max. +15 dBm / 50 Ω

input level:

VSWR:

The frequency changes depending on the rollkey´s

turning speed in following steps:

<1.5

contrast control

adjustment of display contrast

⇒

- turn rollkey slow 5-kHz-steps

(depending upon the setup-settings)

⇒

- turn rollkey fast

100-kHz-steps

Rollkey operation is only possible when

"VAR-LOCK" function is switched off!

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VOR/ILS Analyzer EVS200

Chapter 1: Operator Information

Unit layout rearview

DSP output

external AF input

The scaling of the XY values can be set

in the setup / Y / t setup (ILS mode) for

the localizer and glideslope mode.

BNC socket

The external AF input is to select

in the setup.

BNC socket

1 to 2 V_rms/ 50 Ω

input level:

RS-232-Interface

SUB-D socket:

COM parameter:

BAUD rate:

9pole

N81

1200, 2400,

4800, 9600,

19200 adjustable in

the setup

antenna input

not applicable (optional)

mains fuses

F1 / F2

IEC127-T800H / 250 V

mains switch

Master switch on/off only

for mains operation

mains connector

socket

87 to 265 VAC

47 to 63 Hz

external VDC input

When an external VDC supply is connected

the installed battery (option) is switched off.

U_input9 to 15 VDC

I_max2 A

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VOR/ILS Analyzer EVS200

Chapter 2: Preparation for Operation

Preparation for operation

Placing the unit

The VOR/ILS Analyzer EVS200 can be operated in any position without reduction in its function. Even

shocks during normal transportation or on mobile operation don’t reduce its function.

The unit works at ambient temperatures of -5 to +40°C.

Mains operation

Safety Rules

The VOR/ILS Analyzer EVS200 meets the safety rules in ag-

reement with VDE 0411 and VDE 0804 of safety class I. In

agreement with safety class I all mains circuitry must be insula-

ted and the requirement is a good conductive and durable

together and ground wire connection of all touchable, con-

ductive parts of the unit which can directly be alive in case of a

failure.

Mains connector (earthed plug) put only into a protective

contact socket. If there is a connector it must durable be

connected with a ground wire. The ground wire must not

be insulated.

Mains connection

Connect the VOR/ILS Analyzer EVS200 with the supplied power cord to the AC supply

(87 to 265 VAC / 47 to 63 Hz or corresponding to the technical data).

If the unit shall be connected to another AC supply the

corresponding safety rules must be observed!

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VOR/ILS Analyzer EVS200

DC connection

Chapter 2: Preparation for Operation

Only connect the unit when the minus pole of the battery

is connected to vehicles ground (GROUND )!

input voltage: 9 to 15 VDC

Assembling the FO Cable Jack

Finish the supplied FO cable jack (0018.6700) as following with commercial PVC cables.

cable specification

FO cable jack

PVC wiring performance according VDE 0281

wire cross section 1.0 mm²or more

colour RED for +VDC

order no.: 0018.6700

colour BLUE for ground(

)

Pin connection of the FO cable jack

Assembling the FO cable jack

Finishing and connection to the Vehicle Board Supply

ꢀ

Strip the cable end ca. 8 mm and mount multicore.

Draw the cable through the enclosure and connect it according to the above pin connection of

the FO cable jack.

Fit the pull-relief and assemble the FO cable jack.

Connect the cable to the vehicle board supply.

When connecting the finished cable to the 12-VDC vehicle

board supply there is to perform a protection by a cable fuse

(T2.0 A) or a fuse on board!

Connect and lock the FO cable jack in the VDC input at the rear of the unit.

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VOR/ILS Analyzer EVS200

Chapter 2: Preparation for Operation

Connection of Signal/Control Inputs/Outputs

Antenna connection

Via the RF INPUT at the frontside the VOR/ILS Analyzer EVS200 can be connected with a receiver

antenna which agrees to frequency range.

As an option a RF input at the unit’s rear side is possible.

AF OUT

Via the AF OUT at the frontside the demodulated AF signal will be output.

ꢀ

AF signal

bandwidth:...............................300 Hz to 4 kHz

output level:.............................approx.: 200 mV_rms/ 50 Ω / by 50% AM part

^{e.g. VOR/ILS Analyzer}Þ=oscilloscope

RS-232-Interface

Via the RS-232-Interface at the rearside all essential unit functions of the VOR/ILS Analyzer EVS200

can be remote controlled with a PC terminal. For that purpose the unit can be operated with

commercial terminal programs (e.g. Telix, Procomm, etc.)

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VOR/ILS Analyzer EVS200

External AF input

Chapter 2: Preparation for Operation

Via the AF input (AF-EXT) at the rear side the unit can be fed with an AF signal for further analysis of

typical AF parameters (e.g. level, frequency). This is very applicable for receivers which cannot per-

form AF analysis.

input level:

approx.: 1 to 2 V_rms/ 50 Ω

^{e.g. VOR/ILS Analyzer}Þ=external receiver

Connection AF-EXT of the VOR/ILS Analyzer EVS200 with

the AF output of an external receiver

DSP output

On the DSP-OUT at the rearside e.g. a XY-tracer can be connected. The scaling of the XY values

can be set for any mode (localizer/glideslope) in the setup (DDM Y / t-RANGE) or in ILS-Mode

(Y / t-SETUP).

output signals in VOR- and ILS-Mode:

ILS-Mode

VOR-Mode

Display 1 normalized DDM-values

(DC-voltage)

no output

Range 1 to 4

Display 2 voice-frequency

voice-frequency

(300 to 3000 Hz)

(corresponding

DC voltage)

scaling in the setup:

(0 V ±5 mV)

0 DDM (1 V ±5 mV)

Localizer

Glideslope

Range 1

Range 2

Range 3

Range 4

0.0 ±25%

0 ±0.25 DDM

0.0 ±50%

0.0 ±0.5 DDM

0.0 ±2.5%

0 ±0.025 DDM

0.0 ±5%

0.0 ±0.05 DDM

0.0 ±2.58%

8.75 ±5%

0.0 ±0.0258 DDM

0.0875 ±0.05 DDM

0.0 ±50%

17.5 +5%

0.175 +0.05 DDM

0.0 ±0.5 DDM

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Operation

Switch On/switch Off the unit at mains supply

ꢀ

With the mains switch at the rearside

switch the unit on or off.

With the switch "POWER" at the front

side switch the unit on or "STANDBY".

On switch position "STANDBY" the in-

stalled battery (option) will be charged.

Details see item "Battery Operation"

(page 12).

Switch On/switch Off the unit at VDC supply

When the unit is supplied from the installed battery (option) or through the external DC input it must

be switched on or to "STANDBY" only with the Switch "POWER" at the frontside.

On external DC supply of the unit the installed battery

(option) will not be charged!

Switch on procedure

During the switch on procedure the VOR/ILS

Analyzer EVS200 performs a selftest (BITE). The

tested functions are indicated with "OK". This test

takes approx. 5 s. After that automatically it is

switched over to the startup mode which was set

in the setup.

Because of the displayed battery voltage

(U BATT) it is possible to value the charging

state of the installed battery (option).

Malfunctions of the BITE will be indicated by

"FAIL". In that case the unit does not switch over

to the startup mode (see also item "Selftest").

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Selftest (BITE)

The selftest checks:

all operating voltages,

host processor,

memory,

DSP processor.

In case of an error the determined functional unit will be indicated with a "FAIL". If the internal

operating voltages totally fail or if they deviate extraordinary from the tolerances a selftest cannot

be carried out.

Error:

In case of an error the unit generally should be

switched off and after a few seconds it schould be

switched on again. If the error message is displayed

again it is recommended to send the unit to the

service, corresponding to Chapter 5 (Service).

Battery operation

The battery operation of the VOR/ILS Analyzer EVS200 is an optional component. It is always pos-

sible to retrofit the unit with this mode.

The unit automatically goes into battery operation when the external power supply (DC/AC) is switched

or cut off. The battery operation is indicated on the display by the battery symbol (

) in each mode.

The operation time is >100 minutes (max. brightness) or >150 minutes (at average brightness)

with a completely charged battery.

The charging state can be seen from the battery symbol on the display:

100% battery power

approx. 75 to 25% battery power

flashing symbol, approx. only 5 minutes operation is

ensured. Battery must be charged.

The battery will be charged on AC operation (as well during operation as on "STANDBY") and should

take at least 12 hours (charging time).

After 4 to 5 years or when defect the battery must be

changed according to Chapter 5 "Service".

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VOR/ILS Analyzer EVS200

Operation of the unit

Chapter 3: Operation

Because of the many universal measuring functions of the VOR/ILS Analyzer EVS200 the operation

has to be carried out according to the following instructions. Basically all measurement parameter set-

tings are realized through softkeys and the mode keys. An activated mode is shown by a luminous

LED (beside the belonging mode key). All important signal parameters are analyzed by the DSP (digital

signal processor) and indicated on the display. Due to the variety of the analyzed parameters the indi-

cation in the ILS and VOR mode is subdivided into two display parts ("DISPL 1/2" and

DISPL 2/2").

The RS-232-Interface operation of the VOR/ILS Analyzer EVS200 is

described in section "Operating the VOR/ILS ANALYZER EVS200

via RS-232-Interface"

General operating instructions of the VOR/ILS Analyzer EVS200

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VOR/ILS Analyzer EVS200

SETUP-Mode

Chapter 3: Operation

In the following table all possible parameters are listed and its functions are described. Furthermore all

possible setting values per parameter are shown. Next a sequence chart of the operating instructions

in the SETUP mode is following.

Changes in the SETUP can be saved

with the softkey "SAVE".

parameter

description

baud rate setting

setting value

RS232 BAUDRATE

1200, 2400, 4800,

9600, 19200

VOR ANGLE-RESOLUTION BEARING-angle resolution

0,01° / 0,05°

DDM/SDM AVG-FACTOR

factor for determining the number of

1, 2, 4, 8, 16, 32, 64

measurements which form the arithmeti-

cal average

DDM Y / t-RANGE [LOC]

DDM Y / t-RANGE [GS]

AF-INPUT-SOURCE

XY value scaling in localizer mode at

DSP-OUT (refer to page 10 DSP output)

RNG.1 to RNG.4

XY value scaling in glideslope mode at

DSP-OUT (refer to page 10)

AF selection for valuation

INT = internal AF

EXT = external AF

via AF-EXT-input

STARTUP mode

SQUELCH

startup mode setting at switching on the

unit

VOR

ILS

(VOR mode)

(ILS mode)

BCN

SPEC

LEVEL

(Beacon mode)

(Spectrum mode)

(∆ level mode)

ON / OFF

on/off switching squelch

setting valid for:

∆ level mode

ILS mode

VOR mode

When the setting is "ON" an automatical quiet tuning is performed as soon

as the threshold level < the receiver level is.

When setting is "OFF" no quiet tuning will be performed.

DISPLAY ILLUM

OFF ⇐ 1 to 6 Þ MAX

display brightness setting

DDM/SDM DIMENSIONS

value of DDM/SDM indication

µA / % / 1

(1= value without dimension)

DISPLAY-INTERVALL

indication interval time

1 to 8

setting is only valid for display indi-

cation.

approx. 0.4 s to approx. 1.8 s

TUNING-STEP

0796.1800.02

tuning step rate setting

5 / 25 / 50 / 100 (kHz)

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Operating instructions of SETUP-Mode

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

ILS-Mode

Operating instructions of ILS-Mode

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Operating instructions of Y /t setup menu

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Operating instructions of STORE DDM menu

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Signal parameters on ILS display

Following signal parameters are indicated on the display:

display indication

description

measuring value

FREQ. (MHZ)

receiver frequency in MHz (numerical) and

bargraph center frequency indication in kHz

MHz

LEVEL (dBm)

receiver signal in dBm (numerical) and

bargraph indication (the lower bargraph

shows the set squelch threshold)

dBm

DISPL 1/2 AM-MOD.(90HZ)

AM-MOD.(150HZ)

DDM

AM modulation depth (90 Hz)

AM modulation depth (150 Hz)

differences in depth of modulation

DDM-value

(non-dimension value)

µA

SDM

total modulation factor

SDM-value

(non-dimension value)

µA

PHI (90/150)

DISPL 2/2 ID AF-FREQ.

ID AM-MOD.

phase shift (90 Hz/150 Hz)

degree

AF frequency (1020 Hz)

AM modulation depth of AF frequency

VOICE AM-MOD.

AM modulation depth in the range of

300 to 3000 Hz

Y / t Setup Range 1 to 4

XY value scaling in localizer /

glideslope mode at DSP-Out.

STORE

Locations 1 to 120

DDM/SDM results

DDM menu

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

VOR-Mode

Operating instructions of VOR-Mode

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Signal parameters on VOR display

Following signal parameters are indicated on the display:

display indication

description

measuring value

receiver frequency in MHz (numerical) and

bargraph center frequency indication in kHz

FREQ. (MHZ)

MHz

receiver signal in dBm (numerical) and

bargraph indication (the lower bargraph

shows the set squelch threshold)

LEVEL (dBm)

dBm

BEARING angle

DISPL 1/2 BEARING

DEG

AM modulation depth (30 Hz)

AM modulation depth (9960 Hz)

frequency deviation

AM-MOD.(30HZ)

AM-MOD.(9960HZ)

FM-DEVIATION

FM-INDEX

FM index value

index value

(non-dimension value)

AF frequency (1020 Hz)

DISPL 2/2 ID AF-FREQ.

AM modulation depth of AF frequency

ID AM-MOD.

AM modulation depth in the range of

300 to 3000 Hz

VOICE AM-MOD.

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

BEACON-Mode

Operating instructions of BEACON-Mode

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Signal parameters on BEACON display

Following signal parameters are indicated on the display:

display indication

description

measuring value

receiver frequency in MHz (numerical) and

bargraph center frequency indication in kHz

FREQ. (MHZ)

MHz

receiver signal in dBm (numerical) and

bargraph indication (the lower bargraph

shows the set squelch threshold)

LEVEL (dBm)

dBm

AF frequency and AM modulation depth at

3000 Hz (inner marker)

Hz and %

AF frequency and AM modulation depth at

1300 Hz (middle marker)

AF frequency and AM modulation depth at

400 Hz (outer marker)

AF frequency and AM modulation depth of

the identifier

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

∆ Level-Mode

Operating instructions of ∆ Level-Mode

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Storing and recalling reference levels

To occupy storage capacaty or to call up memory the ∆ level mode has a storage menu which will be

called up by pushing the softkey "MEM".

Until four memory blocks M1 to M4 can be stored or called up. Following data will be allocated to a

storage space:

actual reference level,

actual receiver frequency.

After storing or recalling of a memory the ∆ level main window is updated with the relevant memory

data. When the receiving level changes the update ∆ level is permanently indicated in ∆ level window.

Storage menu explanation:

See next page for the operation diagram for "Storing Reference Levels" and

"Recalling Single Memory".

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Signal parameters on ∆ Level Display

Following signal parameters are indicated on the display::

display indication

description

measuring value

receiver frequency in MHz (numerical) and

bargraph center frequency indication in kHz

FREQ. (MHZ)

MHz

receiver signal in dBm (numerical) and

bargraph indication (the lower bargraph

shows the set squelch threshold)

LEVEL (dBm)

dBm

∆ LEVEL (dB)

actual ∆ level (difference between actual

receiving level and set reference level)

the bargraph indication shows the ∆ level

as a tendency indication

set reference level

LEVEL REF.

dBm

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Spectrum-Mode

Operating instructions of Spectrum-Mode

The spectrum analysis of the VOR/ILS Analyzer EVS200 is

only for trend indication in the scanned range.

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

RS-232-Interface operation

All important unit functions can be remote controlled via the RS-232-Interface (V24 standard) by a PC

terminal which can be operated with commercial terminal programs (e.g. Telix, Procomm...). AS a data

terminal (DDE) the VOR/ILS Analyzer EVS200 must be connected with a RS-232-1:1-Interface. Also

it is possible to control the unit with an user defined program. The necessary commands for that pur-

pose are described below.

COM-Parameter

The com parameters parity, number of data bits, and stop bits cannot be changed and are defined as

"firmware“.

ꢀ non parity bit

ꢀ 8 data bits

ꢀ 1 stop bit

(N),

(8),

(1).

Handshake

Hardware handshake is renounced.

Handshake is performed by software as a transmitted sequence e.g. "READY“ or as a measuring

value or a tuning value e.g. "RF107000“.

Control commands

There are two categories of control commands.

ꢀ

super commands (mode independant, unit related)

ꢀ

mode dependant commands (specified mode must first be selected)

The following table makes clear the control commands structure.

unit related

mode dependant control commands

control commands

ILS-Mode

VOR-Mode

BEACON-

Mode

∆ Level-Mode

EC0

EC1

AF8

AM2

AM3

AM8

AM9

BW0

BW1

AF8

AM0

AM1

AM8

AM9

BW0

BW1

AF4

AF5

AF6

AF7

AM4

AM5

AM6

AM7

FA0

FA2

FA3

FM0

FM1

RES

RF(Freq. kHz)

DD0

DD1

FA0

FA1

FA2

FA3

TEST

VER

SD0

SD1

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Unit related control commands

Command RF (frequency in kHz)

command

function

RF (frequency in kHz) <frequency information> setting or scanning receiving frequency

With the command RF (frequency in kHz) a frequency input is possible in the ranges of 107000 to

119000 kHz and 319000 to 341000 kHz. With this command it is also possible to scan the tuned

frequency when the command RF is transmitted to the EVS200 without additionally parameters. The

unit responses with the frequency information.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

RF107000 <CR>

rf107000 <CR>

READY <CR/LF>

input:

query:

RF<CR>

rf<CR>

107000kHz <CR/LF>

Command LO

command

function

<Local>

set unit local mode

Because local operation is automatically locked when the unit is controlled by a controller, the com-

mand LO (local) performs further local operation at the unit.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

LO<CR>

lo<CR>

READY <CR/LF>

input:

Command EC0

command

function

EC0

selection of communication

EVS200 does not retransmit the received control string.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

EC0 <CR>

ec0 <CR>

READY <CR/LF>

query:

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Command EC1

command

function

EC1

selection of communication

EVS200 retransmits the received control string.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

EC1 <CR>

ec1 <CR>

READY <CR/LF>

query:

Command test

command

function

TEST < >

RS232 test section output

The command TEST initiates a RS232 test section. All ASCII characters 20h to FF will be supplied.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

EC1 <CR>

ec1 <CR>

READY <CR/LF>

query:

Command LA

command

function

query of receiving level

The command LA reads the actual receiving signal level in "∆ Level"-mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

LA <CR>

la <CR>

e.g.

-48.1dBm <CR/LF>

query:

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Command RES

command

function

RES

<RESET>

Master-RESET

With the command RES a unit master reset is possible. It works like a restart of the unit.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

RES<CR>

res<CR>

READY <CR/LF>

input:

EVS200 REMOTE-SYSTEM READY <CR/LF>

Command BI

command

function

<BITE-test information>

BITE (Build In Test) -asking for result

The EVS200 performs approx. every 500 ms a self test (BITE) and makes the result available as a

9bit binary form. During this test the following voltages and funtionally subunits of the units are

checked.

ꢀ

all operating voltages,

hostprocessor

memory,

DSP-processor,

battery capacity (%)

explanation of BITE information

B8 B7 B6

SYNTH 1 SYNTH 2 EXT-DC

PS-DC

Batt2

Batt1

Batt0

+12 VDC -12 VDC

X = 1 is function in tolerance (ok)

X = 0 is function out of tolerance (failure)

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

BI <CR>

BI110111101 <CR/LF>

query:

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Command VER

command

function

VER

query of version number and date of the

EVS200 firmware

The command VER initializes the display of the software version number and its issue date.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

VER <CR>

ver <CR>

query:

EVS200 - VERSION < No. > from < Date >

<CR/LF>

Command ML

command

function

<Mode-Delta Level>

∆ level mode setting

The command ML enables a switching over to the "∆ level" mode.

Exampel:

command from the controller

response of the VOR/ILS Analyzer EVS200

ML <CR>

ml <CR>

READY <CR/LF>

input:

Command MV

command

function

<Mode-VOR>

VOR mode setting

The command MV enables a switching over to the "VOR“ mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

MV <CR>

mv <CR>

READY <CR/LF>

input:

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Command MI

command

function

<Mode-ILS>

ILS mode setting

The command MI enables the switching over to the "ILS“ mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

MI <CR>

mi <CR>

READY <CR/LF>

input:

Command MB

command

function

<Mode-BEACON>

BEACON mode setting

The command MB enables the switching over to the "BEACON mode“.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

MB <CR>

mb <CR>

READY <CR/LF>

input:

Mode related control commands

ILS-Mode

Command DD0

command

function

DD0

DDM value query

The command DD0 reads the actual DDM value (value without dimension) in the ILS mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

DD0 <CR>

dd0 <CR>

e.g.

0.2008 <CR/LF>

query:

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Command DD1

command

function

DD1

query of the DDM value in µA

The command DD1 reads the actual DDM value in µA in the ILS mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

DD1 <CR>

dd1 <CR>

e.g.

194.32uA <CR/LF>

query:

Command SD0

command

function

SD0

SDM value query

The command SD0 reads the actual SDM value (value without dimension) in the ILS mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

SD0 <CR>

sd0 <CR>

e.g.

0.8006 <CR/LF>

query:

Command SD1

Command

function

SD1

query of SDM value in µA

The command SD1 reads the actual DDM value in µA in the ILS mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

SD1 <CR>

sd1 <CR>

e.g.

774.87uA <CR/LF>

query:

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Command AM2

command

function

AM2 <AM modulation depth (90 Hz)>

query of AM modulation depth (90 Hz)

The command AM2 reads the actual AM modulation depth (90 Hz) in the ILS mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

AM2 <CR>

am2 <CR>

e.g.

50% <CR/LF>

query:

Command AM3

command

function

AM3 <AM modulation depth (150 Hz)>

query of AM modulation depth (150 Hz)

The command AM3 reads the actual AM modulation depth (150 Hz) in the ILS mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

AM3 <CR>

am3 <CR>

e.g.

29.9% <CR/LF>

Query:

Command PH

command

function

query of Phase angle 90/150 Hz

The command PH reads the actual PHI value between 90 Hz and 150 Hz in the ILS mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

PH <CR>

ph <CR>

e.g.

119.9DEG <CR/LF>

query:

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Command BW0

command

function

BW0 <bandwidth information >

8-kHz bandwidth setting

The command BW0 enables the switching over to the 8-kHz bandwidth in the ILS mode and in the

"∆ level" mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

BW0 <CR>

bw0 <CR>

READY <CR/LF>

input:

Command BW1

command

function

BW1 <bandwidth information>

30-kHz bandwidth setting

The command BW1 enables the switching over to the 30-kHz-IF bandwidth in the ILS mode and in

the "∆ level" mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

BW1 <CR>

bw1 <CR>

READY <CR/LF>

input:

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Command FA1

command

function

FA1

Activating the Fast DDM measurement

The command FA1 switches on the fast DDM measurement. The measuring, used only for landing

path measurement can only be activated through a controller. The output is performed as DDM value

with RF level (see example) and can be processed accordingly with calculation programs e.g. like

Excel etc. A capacaty of 34 measurements /s at a baud rate set to 19200 baud will be reached. This

conforms to a time interval of 30 ms. The measurement values (DDM, RF level) can be read in and

output as a text file corresponding to the terminal program.

To reach 34 meas/s the baud rate must be set to 19200 baud in the Setup of the

VOR/ILS Analyzer EVS200. It must be attended the acceptance of the data transfering

rate by the terminal program.

ꢀ

The measurement can be stopped through the command FA0 (refer to Command

FA0).

Example:

input:

command from the controller

response of the VOR/ILS Analyzer EVS200

FA1 <CR>

fa1 <CR>

0.2008 -48.2 <CR/LF>

With the command FA1 the echo

mode is automatically switched

OFF.

Both values are separated through a tabulator

ASCII 9.

1/90Hz = 11.1msec.

DSP-Analysis

N+1

N+2

N+3

N+4

N+5

N+6

N+7

N+8

N+9

N+10

DATA-

Transfer

RS232- DATA-

Transfer Transfer

RS232- DATA-

Transfer Transfer

RS232- DATA-

Transfer Transfer

DDM, RF-Level

Calculation

DDM, RF-Level

Calculation

DDM, RF-Level

Calculation

TXD-Signal

fromEVS200

N+2

N+5

30 msec.

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Command FA2

command

function

FA2

Activating the Fast DDM measurement

The command FA2 switches on the fast DDM measurement. The measuring, used only for landing

path measurement can only be activated through a controller.

The command FA2 performs the continuous measurement and output of the DDM, RF level, Mod-

factor 90 Hz and Modfactor 150 Hz with a transmission speed of about 20 measurement value sets

(DDM, RF level, AM90, AM150) per second. This conforms to a time interval of 50 ms. The stated

RS-232-transmission times are related to 19.200 Baud.

The measurement values can be read in and output as a text file corresponding to the terminal pro-

gram.

To reach 20 meas/s the baud rate must be set to 19200 baud in the Setup of the

VOR/ILS Analyzer EVS200. It must be attended the acceptance of the data transfering

rate by the terminal program.

ꢀ

The measurement can be stopped through the command FA0 (refer to Command

FA0).

Example:

input:

command from the controller

response of the VOR/ILS Analyzer EVS200

FA2 <CR>

fa2 <CR>

output form: (DDM <CR >, RF level <CR >,

AM90 <CR >, AM 150 <CR >)

With the command FA2 the echo

mode is automatically switched

OFF.

DDM:

four-digit with indication (dimensionless)

example: -1000 <CR > (-0.1000 DDM)

five-digit with indication (µA)

example: -09890 <CR > (-98.90 µA )

RF level:

three-digit with indication (dBm)

example: -400 <CR > (-40.0dBm)

122 <CR > (12.2dBm)

Modulation depth:

three-digit (%)

example: 202 <CR > (20.2 %)

004 <CR > (0.4 %)

1/90Hz = 11.1msec.

DSP-Analysis

N+1

N+2

N+3

N+4

N+5

N+6

N+7

N+8

N+9

N+10

DDM, AM90, AM150,

RF-Level - Calculation

RS232-

Transfer

DDM, AM90, AM150,

RF-Level - Calculation

RS232-

Transfer

DATA-Transfer

TXD-Signal

fromEVS200

N+4

40 msec.

10 msec.

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Command FA3

command

function

FA3

Activating the Fast DDM measurement

The command FA3 switches on the fast DDM measurement. The measuring, used only for landing

path measurement can only be activated through a controller. The command FA3 performs the con-

tinuous measurement and output of the DDM, RF level, Modfactor 90 Hz and Modfactor 150 Hz.

The 50-ms measurement interval consists of DSP analysis, DSP data transmission to the host

processor and conversion of the DSP raw measurement value into DDM, dBm and AM %. The

measurement values output is performed in this mode as interrupt operation via RS232 interface.

In this Fast-Mode (FA3) a measurement value set will only be transmitted to the PC if it is demanded

by a short command (1 ASCII-Character). The response from the EVS200 is performed without a

longer delay within about 15 to 20 ms between measurement value demand and measurement

value transmission. The stated RS-232-transmission times are related to 19.200 Baud.

The measurement values can be read in and output as a text file corresponding to the terminal pro-

gram.

The baud rate must be set to 19200 baud in the Setup of the VOR/ILS Analyzer

EVS200. It must be attended the acceptance of the data transfering rate by the

terminal program.

ꢀ

The measurement can be stopped through the command FA0 (refer to Command

FA0) or <CR>.

Example:

input:

command from the controller

response of the VOR/ILS Analyzer EVS200

e.g. A

output form: (DDM <CR >, RF level <CR >,

AM90 <CR >, AM 150 <CR >)

ꢀ

Demand for measurement

values output:

output form as FA2

all ASCII characters without:

CR (0Dh), LF (0Ah), # (23h), @ (40h)

example:

-0001 <CR > (DDM),

-412 <CR > (RF level),

201 <CR > (AM90),

202 <CR > (AM150),

With the command FA3 the echo

mode is automatically switched

OFF.

1/90Hz = 11.1msec.

DSP-Analysis

N+1

N+2

N+3

N+4

N+5

N+6

N+7

N+8

N+9

N+10

Programm-Interrupt

DDM, AM90, AM150,

RF-Level - Calculation

DDM, AM90, ADMD1M50, ,AM90, AM150,

RF-Level - CalcRuFla-Ltieovnel - Calculation

DATA-Transfer

RS232-

Transfer

15...20 msec.

Request from PCl

to EVS200 (RXD)

Answer to PCl

from EVS200 (TXD

10 msec.

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Command FA0

command

function

FA0

deactivating the fast DDM measurement

The command FA0 switches off the fast DDM measurement.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

FA0 <CR>

fa0 <CR>

READY <CR/LF>

input:

Command D1

command

function

switch over to display1

The command D1 enables the switching over to the content of display1 in the VOR / ILS mode.

This is prediction for reading out the data of the corresponding mode (VOR/ILS).

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

D1 <CR>

d1 <CR>

READY <CR/LF>

input:

Command D2

command

function

switch over to display2

The command D2 enables the switching over to the content of display2 in the VOR / ILS mode.

This is prediction for reading out the data of the corresponding mode (VOR/ILS).

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

D2 <CR>

d2 <CR>

READY <CR/LF>

input:

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Command AF8

command

function

AF8

<AF-frequency ID>

AF-frequency ID query

The command AF8 reads the actual AF frequency (ID) in the ILS /VOR mode.

Prediction for reading out the data of the corresponding mode (VOR/ILS) is the

switching over to display2.

Example:

query:

command from the controller

response of the VOR/ILS Analyzer EVS200

AF8 <CR>

af8 <CR>

e.g.

1020.0Hz <CR/LF>

e.g..

Command AM8

command

function

AM8 <AM-modulation depth (ID)>

query of AM-modulation depth (ID)

The command AM8 reads the actual AM-modulation depth (ID) in the ILS / VOR mode.

Prediction for reading out the data of the corresponding mode (VOR/ILS) is the

switching over to display2.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

AM8 <CR>

am8 <CR>

e.g.

10.0% <CR/LF>

query:

Command AM9

command

function

AM9 <AM-modulation depth (voice)>

query of AM-modulation depth (voice)

The command AM9 reads the actual AM-modulation depth (voice 300 Hz to 3kHz) in the ILS / VOR

mode.

Prediction for reading out the data of the corresponding mode (VOR/ILS) is the

switching over to display2.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

AM9 <CR>

am9 <CR>

e.g.

09.6% <CR/LF>

query:

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

VOR-Mode

Command BE

command

funcion

bearing angle query

The command BE reads the actual bearing angle (indicated in degree) in the VOR mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

BE <CR>

be <CR>

e.g.

299.97DEG <CR/LF>

query:

Command AM0

command

function

AM0 <AM-modulation depth (30 Hz)>

query of AM-modulation depth (30 Hz)

The command AM0 reads the actual AM-modulation depth (30 Hz) in the VOR mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

AM0 <CR>

am0 <CR>

e.g.

30.1% <CR/LF>

query:

Command AM1

command

function

AM1 <AM-modulation depth (9960 Hz)>

query of AM-modulation depth (9960 Hz)

The command AM1 reads the actual AM-modulation depth (9960 Hz) in the VOR mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

AM1 <CR>

am1 <CR>

e.g.

30.1% <CR/LF>

query:

0796.1800.02

E-8

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Command FM0

command

function

FM0

<FM-deviation)>

FM-deviation query

The command FM0 reads the actual FM-deviation value in the VOR mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

FM0 <CR>

fm0 <CR>

e.g.

479.1Hz <CR/LF>

query:

Command FM1

command

function

FM1

<FM-Index)>

query of FM-index value

The command FM1 reads the actual FM-index value in the VOR mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

FM1 <CR>

fm1 <CR>

e.g.

15.9 <CR/LF>

query:

Command D1

command

function

<Display-information>

switching over to Display1

The command D1 enables the switching over to the content of display1 in the VOR / ILS mode.

This is the prediction for reading out the data of the corresponding mode (VOR/ILS).

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

D1 <CR>

d1 <CR>

READY <CR/LF>

input:

0796.1800.02

E-8

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Command D2

command

function

<Display-information>

switching over to Display2

The command D2 enables the switching over to the content of display2 in the VOR / ILS mode.

This is the prediction for reading out the data of the corresponding mode (VOR/ILS).

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

D2 <CR>

d2 <CR>

READY <CR/LF>

input:

Command AF8

command

function

AF8

<AF-frequency ID>

AF-frequency ID query

The command AM8 reads the actual AF frequency (ID) in the ILS / VOR mode.

Prediction for reading out the data of the corresponding mode (VOR/ILS) is the

switching over to display2.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

AF8 <CR>

af8 <CR>

e.g.

1020.0Hz <CR/LF>

query:

Command AM8

command

function

AM8 <AM-modulation depth (ID)>

query of AM-modulation depth (ID)

The command AM8 reads the actual AM-modulation depth (ID) in the ILS / VOR mode.

Prediction for reading out the data of the corresponding mode (VOR/ILS) is the

switching over to display2.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

AM8 <CR>

am8 <CR>

e.g.

10.0% <CR/LF>

query:

0796.1800.02

E-8

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Command AM9

command

function

AM9 <AM-modulation depth (voice)>

query AM-modulation depth (voice)

The command AM9 reads the actual AM-modulation depth (voice 300 Hz to 3 kHz) in the ILS / VOR

mode.

Prediction for reading out the data of the corresponding mode (VOR/ILS) is the

switching over to display2.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

AM9 <CR>

am9 <CR>

e.g.

09.6% <CR/LF>

query:

Command FA2

command

function

FA2

Activating the Fast measurement mode

The command FA2 switches on the fast measurement mode. The command FA2 performs the con-

tinuous measurement and output of the RF level, Bearing, AM30, AM9960, FM-deviation, FM-

Index with transmission speed of 15 measurement value sets (RF level, Bearing, AM30, AM9960,

FM-deviation, FM-Index) per second. This conforms to a time interval of 66 ms. The stated RS-232-

transmission times are related to 19.200 Baud.

The measurement values can be read in and output as a text file corresponding to the terminal pro-

gram.

The baud rate must be set to 19200 baud in the Setup of the VOR/ILS Analyzer EVS200.

It must be attended the acceptance of the data transfering rate by the terminal pro-

gram.

ꢀ

The measurement can be stopped through the command FA0 (refer to Command FA0).

Example:

input:

command from the controller

response of the VOR/ILS Analyzer EVS200

FA2 <CR>

fa2 <CR>

With the command FA2 the echo

mode is automatically switched

OFF.

output form: (RF level <CR >, Bearing <CR >,

AM30 <CR >, AM 9960 <CR >),

FM-deviation<CR >,

FM-Index <CR >),

RF level:

three-digit with indication (dBm)

example: -400 <CR > (-40.0dBm)

122 <CR > (12.2dBm)

Modulation depth:

three-digit (%)

example: 304 <CR > (30.4 %)

004 <CR > (0.4 %)

FM-deviation:

four-digit (Hz)

example: 4800<CR > (480,0Hz)

0004 <CR > (0.4 Hz)

FM-Index:

three-digit

example: 160<CR > (16,0)

0796.1800.02

E-8

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Command FA3

command

function

FA3

Activating the Fast measurement mode

The command FA3 switches on the fast measurement mode. The command FA3 performs the con-

tinuous measurement and output of the RF level, Bearing, AM30, AM9960, FM-deviation, FM-

Index. The 33 to 66-ms measurement interval consists of DSP analysis, DSP data transmission to

the host processor and conversion of the DSP raw measurement value into dBm, Bearing °, AM %

and FM Hz . The measurement values output is performed in this mode as interrupt operation via

RS232 interface.

In this Fast-Mode (FA3) a measurement value set will only be transmitted to the PC if it is demanded

by a short command (1 ASCII-Character). The response from the EVS200 is performed without a

longer delay within about 15 to 20 ms between measurement value demand and measurement

value transmission. The stated RS-232-transmission times are related to 19.200 Baud.

The measurement values can be read in and output as a text file corresponding to the terminal pro-

gram.

The baud rate must be set to 19200 baud in the Setup of the VOR/ILS Analyzer EVS200.

It must be attended the acceptance of the data transfering rate by the terminal pro-

gram.

ꢀ

The measurement can be stopped through the command FA0 (refer to Command FA0)

or <CR >.

Example:

input:

command from the controller

response of the VOR/ILS Analyzer EVS200

e.g. A

output form: (RF level <CR >, Bearing <CR >,

AM30 <CR >, AM 9960 <CR >),

FM-deviation<CR >,

ꢀ

Demand for measurement

values output:

FM-Index <CR >),

all ASCII characters without:

CR (0Dh), LF (0Ah), # (23h), @ (40h)

output form as FA2

With the command FA3 the echo

mode is automatically switched

OFF.

example:

-412 <CR > (RF level),

35506 <CR > (Bearing),

304 <CR > (AM30),

302 <CR > (AM9960),

4800 <CR > (FM-deviation),

160 <CR > (FM-Index),

Command FA0

command

function

FA0

deactivating the fast DDM measurement

The command FA0 switches off the fast DDM measurement.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

FA0 <CR>

fa0 <CR>

READY <CR/LF>

input:

0796.1800.02

E-8

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

∆ Level-Mode

Command SR

command

function

reference level setting

The command SR is for setting the actual receiver level as a reference level in the reference level

window "∆ level"-mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

SR <CR>

sr <CR>

READY <CR/LF>

input:

Command LR

command

function

reference level query

The command LR reads the actual set reference level in the "∆ Level" mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

LR <CR>

lr <CR>

e.g.

-48.1dBm <CR/LF>

query:

Command LD

command

function

∆-Level query

The command LD reads the actual ∆-Level in the "∆ Level" mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

LD <CR>

ld <CR>

e.g.

-000.0dBm <CR/LF>

query:

0796.1800.02

E-8

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Beacon-Mode

Command AM4

command

function

AM4 <AM-modulation depth (F1-range)>

query of AM-modulation depth (F1)

The command AM4 reads the actual AM-modulation depth (F1 3000 Hz) in the BEACON mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

AM4 <CR>

am4 <CR>

e.g.

29.3% <CR/LF>

query:

Command AM5

command

function

AM5 <AM-modulation depth (F2-range)>

query of AM-modulation depth (F2)

The command AM5 reads the actual AM-modulation depth (F2 1300 Hz) in the BEACON mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

AM5 <CR>

am5 <CR>

e.g.

30.5% <CR/LF>

query:

Command AM6

command

function

AM6 <AM-modulation depth (F3-range)>

query of AM-modulation depth (F3)

The command AM6 reads the actual AM-modulation depth (F3 400 Hz) in the BEACON mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

AM6 <CR>

am6 <CR>

e.g.

29.8% <CR/LF>

query:

0796.1800.02

E-8

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Command AM7

Kommando

Funktion

AM6 <AM-modulation depth ID>

query of AM-modulation depth ID

The command AM7 reads the actual AM-modulation depth (ID) in the BEACON mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

AM7 <CR>

am7 <CR>

e.g.

10.2% <CR/LF>

query:

Command AF4

command

function

AF4

<AF-frequency range F1>

query of AF-frequency 3000 Hz

The command AF4 reads the actual AF frequency (F1) in the BEACON mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

AF4 <CR>

af4 <CR>

e.g.

3000.0Hz <CR/LF>

query:

Command AF5

command

function

AF5

<AF-frequency range F2>

query of AF-frequency 1300 Hz

The command AF5 reads the actual AF frequency (F2) in the BEACON mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

AF5 <CR>

af5 <CR>

e.g.

1300.0Hz <CR/LF>

query:

0796.1800.02

E-8

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VOR/ILS Analyzer EVS200

Chapter 3: Operation

Command AF6

command

function

AF6

<AF-frequency range F3>

query of AF-frequency 400 Hz

The command AF6 reads the actual AM frequency (F3) in the BEACON mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

AF6 <CR>

af6 <CR>

e.g.

400.0Hz <CR/LF>

query:

Command AF7

command

Funktion

AF7

<AF-Frequenz ID>

query of AF-frequency ID

The command AF7 reads the actual AF frequency (ID) in the BEACON mode.

Example:

command from the controller

response of the VOR/ILS Analyzer EVS200

AF7 <CR>

af7 <CR>

e.g.

1020.0Hz <CR/LF>

query:

0796.1800.02

E-8

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VOR/ILS Analyzer EVS200

Interfaces

Chapter 4: Interfaces

Antenna input

labeling

figure

description

RF INPUT 50 Ω

input level:

0 dBm / 50 Ω

max. +15 dBm

(Data safety up to 10 dBm is ensured)

frequency range:

VSWR:

74 to 341 MHz

<1.5

AF output

labeling

figure

description

AF OUT 50 Ω

output level:

200 mV_rms/ 50 Ω

frequency range:

0.3 to 3.4 kHz

Headphone connection

labeling

figure

description

Only for connecting headphones

with soundproofing.

PHONES

e.g. R&S order no. 0708.9010.00

XY-Tracer connection

labeling

figure

description

DSP-OUT

The scaling of the XY values can be set in

the setup / Ils mode (Y / t setup) for the

localizer and glideslope mode.

0796.1800.02

E-8

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VOR/ILS Analyzer EVS200

Chapter 4: Interfaces

External AF input

labeling

figure

description

AF EXT.

input level:

1 to 2 V_rms/ 50 Ω

frequency range:

30 Hz to 10 kHz

RS-232-Interface

labeling

figure

description

standard RS-232-Interface

RS232/DDE

COM parameter:

baud rate:

N81

1200, 2400,

4800, 9600,

19200 adjustable in

the setup

External VDC connection

labeling

figure

description

DC connection:

tolerance max.

12 VDC / 30 W

9 to 15 VDC

INPUT: 9-15 VDC

Mains connection

labeling

figure

description

INPUT: 85-250 V/

47-63Hz

mains connection:

87 to 265 VAC

47 to 63 Hz

F1/F2: IEC127-

T800H/250V

0796.1800.02

E-8

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VOR/ILS Analyzer EVS200

Chapter 5: Service

Service

To ensure a unit’s repair as quick as possible a defect VOR/ILS Analyzer EVS200

must be send to the service place named in the following.

In case of service questions

please contact us over phone

or FAX.

(49) / 2203 / 49-266

ꢀ

(49) / 2203 / 49-336

Warranty

Warranty conditions are stated in the general terms of business.

Whilst time of warranty a defective internal battery

(option) may only be changed by Rohde & Schwarz

service personnel!

0796.1800.02

E-8

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VOR/ILS Analyzer EVS200

Chapter 6: Technical Specification

Technical data

Receiver section

Frequency range

................................ 74.7 to 75.3 MHz

107 to 119 MHz

319 to 341 MHz

Accuracy

Resolution

Input voltage

................................ ≤2 ppm

................................ 5 kHz

................................ 15 dBm max./ 50 Ω

(data safety up to 10 dBm is ensured)

VSWR

................................ <1.5

Sensitivity

IF bandwidth

................................ -96 dBm ≥18 dB (IF bandwidth 8 kHz)

................................ min. ±15 kHz (-3 dB), max. ±40 kHz (-60dB)

min. ±4 kHz (-3 dB), max. ±12 kHz (-60dB)

or optional:

min. ±19 kHz (-6 dB), max. ±38 kHz (-60dB)

min. ±8 kHz (-6 dB), max. ±20 kHz (-60dB)

Demodulation

RF-Input

................................ AM

................................ BNC

Absolute-level receiver

Display range

................................ -96 to +10 dBm

Accuracy

................................ < ±2 dB

Difference-level receiver

Bargraph (quasi analog)...................... ±12 dB to reference level

Resolution

................................ 0.1 dB

Accuracy indication ............................. ≤±1 dB

ILS signal analysis

The given values are valid only for the 30 kHz- or 38 kHz- IF-filter

RF level

Frequency range

................................ -70 to -30 dBm

................................ 108 to 118 MHz

................................ 328 to 336 MHz

Modulation depth (10 to 80 %)

90 / 150 Hz ±2% ................................ accuracy 0.5%

300 Hz to 4 kHz (identifier).................. ≤1.2% of reading

Phase angle 90/150 Hz

Measurement range............................ ±60°

Measurement error.............................. ≤0.2°

Resolution

................................ 0.1°

DDM measurement

Localizer mode

Measurement error at

15 to 25% modulation.......................... ≤±0.0004 DDM

±0.1% of reading

10 to 30% modulation.......................... ≤±0.0004 DDM

±0.2% of reading

0796.1800.02

E-8

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VOR/ILS Analyzer EVS200

Chapter 6: Technical Specification

Glideslope mode

Measurement error at

30 to 50% modulation.......................... ≤±0.0008 DDM

±0.1% of reading

Resolution (LOC / GS) ........................ 0.0001 DDM

DSP out

Localizer: Range 1 .......................... 0.0 ±25%

0 ±0.25 DDM

0.0 ±2.5%

0 ±0.025 DDM

Range 3 .......................... 0.0 ±2.58%

0.0 ±0.0258 DDM

Range 4 .......................... 0.0 ±50%

0.0 ±0.5 DDM

Range 2

Glideslope: Range 1 .......................... 0.0 ±50%

0.0 ±0.5 DDM

Range 2 .......................... 0.0 ±5%

0.0 ±0.05 DDM

Range 3 .......................... 8.75 ±5%

0.0875 ±0.05 DDM

Range 4 .......................... 17.5 +5%

0.175 +0.05 DDM

SDM measurement

SDM 10 to 80% ................................ accuracy 1% absolute

Resolution

................................ 0.0001 SDM

VOR signal analysis

Bearing

Accuracy

Resolution

........................................±0.1°

........................................0.05° / 0.01° (Setup)

AM modulation depth

30 Hz and 9,96 kHz

Accuracy

Resolution

........................................≤1%

........................................0.1%

FM deviation

Accuracy

........................................0.5%, ±0.1 Hz

........................................0.1 Hz

Resolution

RS-232-Interface

........................................8N1, adjustable baud rate

1200, 2400, 4800, 9600, 19200

0796.1800.02

E-8

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VOR/ILS Analyzer EVS200

General data

Chapter 6: Technical Specification

Power supply

................................ 100 to 240 VAC

(with build-in charger)............................... 50 to 60 Hz (440 Hz option)

9 to 15 VDC (typ. 12 VDC 1.4 A)

120 VA max.

built-in battery (option).............................. 12V / 3.2 Ah

charging while mains is connected

Operating time

................................ >100 min (max. brightness)

>150 min (at average brightness)

Mechanical resistance.............................. shock-tested to MIL-810D

vibration-tested to

DIN-IEC 68-2-36 & 68-2-6

EMC

RF Emissions

................................ complies with EN 50081-1

RF Immissions ................................ complies with EN 50082-1

Temperature range

Operating temp. range ........................ -5°C to +45°C

Storage temp. range ........................... -20°C to +60°C

Dimensions and Weight

Dimensions (WxHxD).......................... 219 x 147 x 350 mm

Weight

................................ 4.9 kg (without battery)

6.5 kg (with battery)

Order notification

Order-No. EVS200 .............................. 0796.1800.00

Battery (option) ................................ 0796.2012.00

0796.1800.02

E-8

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VOR/ILS Analyzer EVS200

Accessories

Chapter 6: Technical Specification

Description

Ident No.

Bag for EVS200

TEVS

ST1

0798-4264

0798-4270

Alu-tripod for antenna and measuring unit, Notebook,

inclusivly alignment level

Rigging set for tripod

0798-4293

0798-4306

0798-4312

Bag for tripod, plate and rigging set

TST

MA1

Set halfwave measuring dipoles screened for:

75 MHz and 115 MHz or

335 MHz ±15%

KK1

0798-4235

0798-4335

Coaxialcable 50 Ω,

RG58 with 1xN/BNC-Connector, 5 m length

KK2

Coaxialcable 50 Ω,

RG58 with 1xN/BNC-Connector, 10 m length

Batterybelt for ext. supply at the EVS200 with internal

battery charger (12 V/5 Ah, for approx. 190 min operation

time, weight: 2150 g)

BG01

Batterybelt for ext. supply at the EVS200 with internal

battery charger (12 V/7 Ah, for approx. 260 min operation

time, weight: 2850 g)

BG02

0798-4341

Spiral connecting cable for batterybelt 1.50 m / 2 m for

cable BG1 / BG2

KBG1-2 0798-4329

SW-EVS 0798-4358

Remote control software for EVS200

0796.1800.02

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