EK 300 IEM
Instruction manual
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Contents
Contents
Important safety instructions .......................................................................... 2
The EK 300 IEM G3 diversity receiver .............................................................. 3
Areas of application ........................................................................................ 3
The frequency bank system .......................................................................... 3
Delivery includes .................................................................................................. 4
Product overview ................................................................................................. 5
Overview of the EK 300 IEM G3 diversity receiver .................................... 5
Overview of the displays ................................................................................ 6
Inserting the batteries/accupack ................................................................. 7
Charging the accupack .................................................................................... 7
Connecting the earphones ............................................................................. 7
Using the diversity receiver .............................................................................. 9
Selecting a standard display ...................................................................... 10
Using the operating menu ............................................................................. 11
The buttons .................................................................................................... 11
Overview of the operating menu ............................................................... 11
Adjusting settings via the operating menu ............................................... 14
The main menu “Menu” .............................................................................. 14
Synchronizing an SR 300 IEM G3 transmitter with the
diversity receiver .............................................................................................. 20
Setting the transmitters to intermodulation-free channels
(Easy Setup Sync) ......................................................................................... 20
Cleaning the diversity receiver ...................................................................... 22
Recommendations and tips ........................................................................... 22
If a problem occurs ... ....................................................................................... 23
Accessories ......................................................................................................... 24
Specifications .................................................................................................... 24
Manufacturer Declarations ............................................................................. 25
Index .................................................................................................................... 27
For further information, visit the EK 300 IEM G3 product
page on our website at www.sennheiser.com.
1
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Important safety instructions
Important safety instructions
• Read this instruction manual.
• Keep this instruction manual. Always include this instruction manual
when passing the product on to third parties.
• Heed all warnings and follow all instructions in this instruction manual.
• Use only a cloth for cleaning the product.
• Do not place the product near any heat sources such as radiators, stoves,
or other devices (including amplifiers) that produce heat.
• Only use attachments/accessories specified by Sennheiser.
• Refer all servicing to qualified service personnel.
Servicing is required if the product has been damaged in any way, liquid
has been spilled, objects have fallen inside, the product has been
exposed to rain or moisture, does not operate properly or has been
dropped.
• WARNING: To reduce the risk of short circuits, do not use the product
near water and do not expose it to rain or moisture.
• This product is also intended for professional use. Commercial use is
subject to the safety-at-work regulations. Sennheiser, as the manufac-
turer, is therefore obliged to expressly point out possible health risks
arising from use.
This product is capable of producing sound pressure exceeding
85 dB(A). 85 dB(A) is the sound pressure corresponding to the
maximum permissible volume which is by law (in some countries)
allowed to affect your hearing for the duration of a working day. It is
used as a basis according to the specifications of industrial medicine.
Higher volumes or longer durations can damage your hearing. At higher
volumes, the duration must be shortened in order to prevent hearing
damage. The following are sure signs that you have been subjected to
excessive noise for too long a time:
– You can hear ringing or whistling sounds in your ears.
– You have the impression (even for a short time only) that you can no
longer hear high notes.
Replacement parts
When replacement parts are required, be sure the service technician uses
replacement parts specified by Sennheiser or those having the same char-
acteristics as the original part. Unauthorized substitutions may result in
fire, electric shock, or other hazards.
Intended use
Intended use of the EK 300 IEM G3 diversity receiver includes:
• having read these instructions especially the chapter “Important safety
instructions”,
• using the product within the operating conditions and limitations
described in this instruction manual.
“Improper use” means using the product other than as described in this
instruction manual, or under operating conditions which differ from those
described herein.
2
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The EK 300 IEM G3 diversity receiver
The EK 300 IEM G3 diversity receiver
This diversity receiver is part of the evolution wireless series generation 3
(ew G3). With this series, Sennheiser offers high-quality state-of-the-art
RF transmission systems with a high level of operational reliability and
ease of use. Transmitters and receivers are designed for monitoring appli-
cations and permit wireless transmission with studio-quality sound.
Features of the evolution wireless 300 IEM G3 series:
• Optimized PLL synthesizer and microprocessor technology
• HDX noise reduction system
• Adaptive diversity technology
• Switching bandwidth of 42 MHz
• Scan function (Easy Setup) for scanning the frequency banks for unused
channels
• Adjustable and switchable limiter
Adaptive diversity
This diversity receiver uses the ground connection of the earphones cable
as its second antenna to provide improved reception.
Areas of application
The receiver can be combined with the SR 300 IEM G3 transmitter.
Diversity receiver
Earphones
Transmitter
EK 300 IEM G3
IE 4
SR 300 IEM G3
PEAK PEAK
B.Ch:
516.000
1.
1
ew300IEM
MHz
Stereo Transmitter
0
0
-10 -10
-20 -20
-30 -30
-40 -40
EQ
Standard -18dB
AF
I
AF II
The transmitter is available in the same UHF frequency ranges and is
equipped with the same frequency bank system with factory-preset
frequencies. An advantage of the factory-preset frequencies is that
• a transmission system is ready for immediate use after switch-on,
• several transmission systems can be operated simultaneously on the
preset frequencies without causing intermodulation interference.
The frequency bank system
The diversity receiver is available in 6 UHF frequency ranges with
1,680 receiving frequencies per frequency range:
Range A:
516 – 558
Range G:
566 – 608
Range B:
626 – 668
Range C:
734 – 776
Range D:
780 – 822
Range E:
823 – 865
3
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Delivery includes
Each frequency range (A–E, G) offers 26 frequency banks with up to
16 channels each:
Channel 1 – frequency preset
Channel 2 – frequency preset
Frequency bank 1 ... 20
Channel 16 – frequency preset
Channel 1 – freely selectable frequency
Channel 2 – freely selectable frequency
Frequency bank U1 ... U6
Channel 16 – freely selectable frequency
Each of the channels in the frequency banks “1” to “20” has been factory-
preset to a fixed receiving frequency (frequency preset). The factory-
preset frequencies within one frequency bank are intermodulation-free.
These frequencies cannot be changed.
For an overview of the frequency presets, please refer to the supplied
frequency information sheet. Updated versions of the frequency informa-
tion sheet can be downloaded from the EK 300 IEM G3 product page on our
The frequency banks “U1” to “U6” allow you to freely select and store
receiving frequencies. It might be that these receiving frequencies are not
intermodulation-free (see page 20).
Delivery includes
The packaging contains the following items:
1 EK 300 G3 IEM diversity receiver
2 AA size batteries, 1.5 V
1 pair of IE 4 earphones
1 instruction manual
1 frequency information sheet
4
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Product overview
Product overview
Overview of the EK 300 IEM G3 diversity receiver
³
»
·
¿
ƹ
²
Ƹ
¹
´
²
¶
º
¸
¾
µ
¸
³ On/off/volume control
· 3.5 mm stereo jack socket (PHONES), lockable
(the ground contact is used by antenna II)
» Antenna I
¿ Operation and battery status indicator, red LED
lit = ON
flashing = LOW BATT
´ RF signal indication, green LED
lit = RF
² Charging contacts
¶ SET button
º ̆/̄ rocker button (UP/DOWN)
¾ Battery compartment
µ Battery compartment cover
¸ Battery compartment catches
¹ Infra-red interface
Ƹ ESC button
ƹ Display panel, backlit in orange
5
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Product overview
Overview of the displays
After switch-on, the diversity receiver displays the “Frequency/Name”
standard display. For further illustrations and examples of the different
standard displays, refer to page 10.
The display backlighting is automatically reduced after approx. 20 seconds.
MHz
823.925
ew300 IEM
MUTE
AF P
RF
Display
RF level “RF”
(Radio Frequency)
Meaning
ቢ
Diversity display:
Antenna input I is active
Antenna input II is active
RF signal level:
Field strength of the received signal
RF
AF
Squelch threshold level
ባ Audio level “AF”
Peak hold function
(Audio Frequency)
Modulation of the transmitter
(channel-separated when the
transmitter is set to stereo mode)
When the display shows full deflec-
tion, the audio input level is exces-
sively high.
ቤ Frequency
Current receiving frequency
(see page 17)
ብ Name
Freely selectable name of the receiver
(see page 15)
ቦ Lock mode icon
Lock mode is activated (see page 10)
ቧ Battery status
Charge status:
approx. 100%
approx. 70%
approx. 30%
charge status is critical, the red
LOW BATT LED ¿ is flashing
:
¿
ቨ Muting function
“Mute” is only displayed on the “Frequency/
Name” standard display (see page 10)
“MUTE”
• when the transmitter’s RF signal is
deactivated or
• when the transmitter is set to mono mode
and therefore does not transmit a pilot
tone but the receiver’s pilot tone evalua-
tion is activated.
or audio channels
The audio channels are only displayed on the
“Frequency/Limiter” and “Frequency/High
Boost” standard displays (see page 10)
Stereo
Focus
ቩ Pilot tone “P”
Activated pilot tone evaluation
(see page 18)
6
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Putting the diversity receiver into operation
Putting the diversity receiver into
operation
Inserting the batteries/accupack
For powering the diversity receiver, you can either use two 1.5 V AA size
batteries or the rechargeable Sennheiser BA 2015 accupack (see “Accesso-
ries” on page 24).
̈ Open the battery compartment by pushing the two catches ¸ in the
direction of the arrows and open the cover µ.
̈ Insert the two batteries or the accupack as shown above. Please
observe correct polarity when inserting the batteries/accupack.
̈ Close the battery compartment by pressing on the center of the
cover µ.
The battery compartment cover µ locks into place with an audible
click.
Charging the accupack
To charge the BA 2015 accupack:
̈ Insert the diversity receiver into the L 2015 charger (see “Accessories”
on page 24).
The L 2015 charger can only charge the combination BA 2015
accupack/diversity receiver. Standard batteries (primary cells) or
individual rechargeable battery cells cannot be charged.
Connecting the earphones
̈ Connect the earphones to the socket ·.
The ground connection of the earphones cable serves as the
antenna for the second diversity section. For details on the
connector assignment, refer to the diagram on page 25.
7
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Putting the diversity receiver into operation
Attaching the diversity receiver to clothing
You can use the belt clip ƺ to attach the diversity receiver to clothing
(e.g. belt, waistband).
ƺ
The belt clip is detachable so that you can also attach the diversity receiver
with the antenna pointing downwards. To do so, withdraw the belt clip
from its fixing points and attach it the other way round. The belt clip is
secured so that it cannot slide out of its fixing points accidentally.
To detach the belt clip:
̈ Lift one side of the belt clip as shown.
̈ Press down the belt clip at one fixing point and pull it out of the receiver
housing.
̈ Repeat for the other side.
8
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Using the diversity receiver
Using the diversity receiver
To establish a transmission link, proceed as follows:
1. Switch the diversity receiver on (see next section)
2. Switch a transmitter on
mitter).
(see the instruction manual of the trans-
The transmission link is established and the receiver’s RF level display
“RF” ቢ reacts.
It is vital to observe the notes on frequency selection on page 20.
If you cannot establish a transmission link between transmitter and
receiver, read the chapter “Synchronizing an SR 300 IEM G3 transmitter
with the diversity receiver” on page 20.
Switching the diversity receiver on/off and adjusting
the volume
To switch the diversity receiver on:
̈ Turn the volume control ³ clockwise until it clicks.
appears on the display panel.
ᕡ
ᕤ
To switch the diversity receiver off:
̈ Turn the volume control ³ counterclockwise until it clicks.
To adjust the volume:
CAUTION!
Hearing damage due to high volumes!
Listening at high volume levels for long periods can lead
to permanent hearing defects.
̈ Set the volume to a low level before putting the
earphones on.
̈ Do not continuously expose yourself to high volumes.
̈ Turn the volume control ³.
9
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Using the diversity receiver
Deactivating the lock mode temporarily
You can activate or deactivate the automatic lock mode via the “Auto
Lock” menu item (see page 16). If the lock mode is activated, you have to
temporarily deactivate it in order to be able to operate the receiver:
SET
̈ Press the SET button.
“Locked” appears on the display panel.
̈ Press the rocker button.
“Unlock?” appears on the display panel.
SET
̈ Press the SET button.
– When you are in the operating menu, the lock mode remains
deactivated until you exit the operating menu.
– When one of the standard displays is shown, the lock mode
is automatically activated after 10 seconds.
MHz
823.925
ew300 IEM
MUTE
AF P
RF
Selecting a standard display
̈ Press the ESC button to select a standard display. In stereo
ESC
button.
Contents of the display
Selectable standard display
“Frequency/Name”
MHz
823.925
with “MUTE” display ቨ
ew300 IEM
MUTE
RF AF
RF AF
RF AF
P
“Frequency/Limiter”
B.CH 1.1
Lim: - 6dB
P
with display of the audio channels
(Stereo/Focus) ቨ
“Frequency/High Boost“
823.925MHz
EQ
with display of the audio channels
(Stereo/Focus) ቨ
P
For more detailed information, refer to the chapter “Overview of the
displays” on page 6.
10
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Using the operating menu
Using the operating menu
A special feature of the Sennheiser ew G3 series is the consistent, intuitive
menu structure of transmitters and receivers. As a result, adjustments to
the settings can be made quickly – even in stressful situations, for example
on stage or during a live show or presentation.
The buttons
Button
Function of the button
Press the ESC button
• Selects a standard display (see page 10)
• Cancels the entry and returns to the current
standard display (ESC function)
ESC
Press the SET button
• Changes from the current standard display
to the operating menu
SET
• Calls up a menu item
• Enters a submenu
• Stores the settings and returns to the
operating menu
Press the rocker button • In Focus mode:
Adjusts the balance (see page 16)
• In stereo mode:
Selects a standard display (see page 10)
• Changes to the next/previous menu item
• Changes the setting of a menu item
Overview of the operating menu
Main menu
“Menu”
“Easy Setup”
Reset List
Current List
Scan New List
Squelch
Easy Setup
Frequency Preset
Name
Balance
Mode
Extended menu
“Advanced Menu”
High Boost
Auto Lock
Advanced
Exit
Tune
Pilot Tone
Limiter
LCD Contrast
Reset
Software Revision
Exit
Display
Function of the menu item
Page
14
Main menu “Menu”
Squelch
Adjusts the squelch threshold
14
Easy Setup
Scans for unused frequency presets, releases
and selects frequency presets
15
Frequency Preset Sets the frequency bank and the channel
15
15
14
14
16
Name
Enters a freely selectable name
Adjusts the balance
Balance
Mode
Selects stereo or Focus mode
Activates/deactivates the treble boost
High Boost
Auto Lock
Advanced
Exit
Activates/deactivates the automatic lock mode 16
Calls up the extended menu “Advanced Menu” 17
Exits the operating menu and returns to the
–
current standard display
11
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Using the operating menu
Display
Function of the menu item
Page
15
“Easy Setup“
Reset List
Releases all locked frequency presets
Selects an unused frequency preset
15
Current List
Scan New List
15
Scans for unused receiving frequencies
(frequency preset scan)
15
Exit
Exits “Easy Setup” and returns to the main
menu
–
Extended menu “Advanced Menu”
17
17
Tune
Sets the receiving frequencies for the
frequency banks “U1” to “U6”
Sets the frequency bank, the channel and the
receiving frequency (frequency banks “U1”
to “U6”)
17
Pilot Tone
Limiter
Activates/deactivates the pilot tone evaluation 18
Adjusts the limiter
18
19
LCD Contrast
Reset
Adjusts the contrast of the display panel
Resets the settings made in the operating
menu
19
19
–
Software Revision Displays the current software revision
Exit
Exits the extended menu “Advanced Menu”
and returns to the main menu
Working with the operating menu
If the lock mode is activated, you have to deactivate it In order to
be able to work with the operating menu (see page 10).
By way of example of the “Frequency Preset” menu, this section describes
how to use the operating menu.
Changing from a standard display to the operating menu
SET
̈ Press the SET button.
The current standard display is replaced by the main menu.
The last selected menu item is displayed.
Selecting a menu item
̈ Press the rocker button to change to the “Frequency Preset”
menu item.
The current setting of the selected menu item is displayed:
Menu
Frequency Preset
B.Ch: 1. 1
Changing and storing settings
SET
SET
Frequency Preset
B.Ch: 1. 1
Frequency Preset
Menu
Frequency Preset
B.Ch: 1. 1
B.Ch:
6. 3
863.100MHz
824.500MHz
Call up “Frequency
Preset”
Select the frequency
bank and confirm
Select the channel;
store the setting
SET
“Stored”
SET
̈ Press the SET button to call up the menu item.
̈ Press the rocker button to set the frequency bank.
12
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Using the operating menu
SET
SET
̈ Press the SET button to confirm your selection.
̈ Press the rocker button to set the channel.
̈ Press the SET button to store the setting.
Canceling an entry
̈ Press the ESC button to cancel the entry.
ESC
The current standard display appears on the display panel.
To subsequently return to the last edited menu item:
SET
̈ Press the SET button repeatedly until the last edited menu
item appears.
Exiting a menu item
To return to the next higher menu level:
̈ Change to the “Exit” menu item.
Menu
Exit
SET
̈ Confirm your selection.
You return to the next higher menu level.
To directly return to the current standard display:
̈ Press the ESC button.
ESC
13
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Adjusting settings via the operating menu
Adjusting settings via the operating
menu
The main menu “Menu”
Adjusting the squelch threshold – “Squelch”
SET
Squelch
Squelch
Menu
Squelch
5 dB
15 dB
5dB
Call up “Squelch”
Select the
desired setting
Store the setting
SET
“Stored”
Adjustment range: 5 to 25 dBμV, adjustable in 2-dB steps, can be switched
off
The squelch eliminates annoying noise when the transmitter is switched
off or when there is no longer sufficient transmitter power received by the
receiver.
CAUTION!
Danger of hearing damage!
If you switch the squelch off or adjust the squelch
threshold to a very low value, loud hissing noise can occur
in the receiver. The hissing noise can be loud enough to
cause hearing damage!
̈ Always make sure that the squelch is switched on.
̈ Before adjusting the squelch threshold, set the
volume of the headphone output PHONES to the
minimum (see page 9)
.
̈ Never change the squelch threshold during a live
transmission.
̈ Adjust the squelch threshold – with the transmitter switched off – to
the lowest possible setting that suppresses hissing noise.
A high squelch threshold reduces the transmission range.
The squelch should only be switched off for servicing purposes. With the
squelch threshold set to “5 dB”, you switch the squelch off by keeping the
DOWN rocker button pressed for 3 seconds.
Display
Squelch is ...
... switched on.
MHz
823.925
The dotted line ቫ displays the squelch
threshold.
ቫ
ew300 IEM
MUTE
RF AF
P
... switched off.
MHz
823.925
The dotted line ቫ goes off and the audio
level display “AF” shows full deflection
(hissing noise).
ቫ
ew300 IEM
RF AF
P
If you have accidentally switched off the squelch:
̈ Press the UP rocker button to switch the squelch on.
14
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Adjusting settings via the operating menu
Scanning for, releasing and selecting frequency presets –
“Easy Setup”
Menu item
Function of the menu item
Reset List
Releases all locked frequency presets
Current List Selects an unused frequency preset
Scan New List Automatically scans for unused receiving frequencies
(frequency preset scan)
If receiving frequencies are used, they will be locked; if
receiving frequencies are unused, they will be released.
After the frequency preset scan, you can select an unused
frequency preset.
Selecting the frequency bank and the channel – “Frequency Preset”
SET
SET
Frequency Preset
B.Ch: 1. 1
Frequency Preset
Menu
Frequency Preset
B.Ch: 1. 1
B.Ch:
6. 3
863.100MHz
824.500MHz
Call up “Frequency
Preset”
Select the frequency
bank and confirm
Select the channel;
store the setting
SET
“Stored”
When setting up multi-channel systems, please observe the
following:
Only the factory-preset receiving frequencies within one
frequency bank (“1” to “20”) are intermodulation-free. It is vital
to observe the notes on frequency selection on page 20.
Overview of the frequency banks and channels:
Frequency bank Channels
Type
“1” to “20”
up to 16 per
System bank:
frequency bank frequencies are factory-preset
up to 16 per User bank:
frequency bank frequencies are freely selectable
“U1” to “U6”
Entering a name – “Name”
Menu
Name
Name
Lichael
Name
Michael
Lichael
Call up “Name”
Enter a character
and confirm
Enter a character;
store the setting
“Stored”
Via the “Name” menu item, you can enter a freely selectable name (e.g. the
name of the performer) for the receiver. The name is displayed on the
“Frequency/Name” standard display (see page 10). The name can consist
of up to 8 characters such as:
• letters (without pronounciation marks),
• numbers from 0 to 9,
• special characters and spaces.
To enter a name, proceed as follows:
̈ Press the rocker button to select a character.
SET
̈ Press the SET button to change to the next segment/character
or to store the complete entry.
15
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Adjusting settings via the operating menu
Adjusting the balance – “Balance”
SET
Balance
Balance
Menu
Balance
0
5
0
Call up “Balance”
Select the desired
setting
Store the setting
SET
“Stored”
You can adjust the balance in 31 steps. In Focus mode (see next section)
and when one of the standard displays is shown, you can also use the
rocker button to adjust the balance. The mode of operation of the balance
setting depends on the selected audio mode (see next section).
Switching between “Stereo” and “Focus” mode – “Mode”
SET
Mode
Mode
Menu
Mode
Stereo
Focus
Stereo
Call up “Mode”
Select the desired
setting
Store the setting
SET
“Stored”
The selected audio mode influences the mode of operation of the balance
setting (see previous section).
Audio mode
Stereo
Focus
The left-right signals are available The left-right signals are mixed and
as usual.
are available as a mono signal in
both headphone channels.
The balance setting serves to
adjust the balance between the
left and right stereo signal.
The balance setting serves to
adjust the relative levels of the
two separate channels in the
mixed mono signal.
In both audio modes, the corresponding transmitter has to be set to
stereo mode!
Activating/deactivating the treble boost – “High Boost”
Via the “High Boost” menu item, you can boost the treble response of the
output signal (8 dB at 10 kHz).
Output signal remains unchanged High Boost activated
EQ
EQ
Activating/deactivating the automatic lock mode – “Auto Lock”
SET
Menu
Auto Lock
Active
Auto Lock
Inactive
Auto Lock
Active
Store the setting
Call up “Auto
Lock”
Select the desired
setting
SET
“Stored”
The lock mode prevents that the balance is accidentally adjusted when the
receiver is in Focus mode. In addition, the lock mode prevents accidental
switching off or programming during operation. The lock mode icon ቦ
on the current standard display indicates that the lock mode is activated.
For information on how to use the lock mode, refer to page 10.
16
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Adjusting settings via the operating menu
The extended menu “Advanced Menu”
To get into the extended menu “Advanced Menu”:
̈ From the main menu, select “Advanced”.
Setting the receiving frequencies and the frequency banks “U1”
to “U6 – “Tune”
When you have selected one of the system banks and then select
the “Tune” menu, the diversity receiver automatically switches to
channel 1 of the frequency bank “U1”. In this case, “U1.1” briefly
appears on the display panel.
Upon delivery, the channels of the frequency banks “U1” to “U6”
are not assigned a receiving frequency.
Via the “Tune” menu item, you can set a receiving frequency to be stored
in the current channel or you can select a different channel in one of the
frequency banks “U1” to “U6” and assign this channel a receiving
frequency.
Setting a receiving frequency for the current channel
̈ Press the rocker button until the “Tune” menu item appears.
SET
̈ Press the SET button.
The MHz section of the receiving frequency of the channel is
highlighted.
SET
SET
Advanced Menu
Tune
Tune
Tune
823.925 MHz
823.925 MHz
823.925 MHz
B.Ch: U1. 1
B.Ch: U1. 1
Call up “Tune”
(special function)
Select the frequency
bank and confirm
Select the channel;
store the setting
SET
“Stored”
It is vital to observe the notes on frequency selection on page 20.
̈ Press the rocker button to set the MHz section of the
frequency.
SET
SET
̈ Press the SET button to confirm the MHz section of the
frequency.
The kHz section of the frequency is highlighted.
̈ Press the rocker button to set the kHz section of the frequency.
̈ Press the SET button to confirm the frequency.
“Stored” appears on the display panel. The “Tune” menu item
appears again.
Selecting a channel and assigning this channel a frequency
̈ Press the rocker button until the “Tune” menu item appears.
SET
̈ Press the SET button and keep it pressed until the frequency
bank is highlighted.
SET
SET
Advanced Menu
Tune
Tune
Tune
823.925 MHz
823.925 MHz
823.925 MHz
B.Ch: U1. 1
B.Ch: U5. 1
Call up “Tune”
(special function)
Select the frequency
bank and confirm
Select the channel;
store the setting
SET
“Stored”
17
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Adjusting settings via the operating menu
̈ Press the rocker button to set the frequency bank.
SET
̈ Press the SET button to confirm the frequency bank.
The channel is highlighted.
̈ Press the rocker button to set the channel.
SET
̈ Press the SET button to confirm the channel.
The frequency (MHz section) is highlighted.
̈ Set the desired frequency (MHz and kHz section) as described in the
previous chapter.
Activating/deactivating the pilot tone evaluation – “Pilot Tone”
Advanced Menu
Pilot
Pilot
Pilot Tone
A c t i v e
A c t i v e
I n a c t i v e
Call up
“Pilot Tone”
Select the desired
setting
Store the setting
“Stored”
The pilot tone encodes the stereo signal of the transmitter and supports
the diversity receiver’s squelch function, thus protecting against interfer-
ence due to RF signals from other devices. When set to stereo operation,
the transmitter adds an inaudible pilot tone to the transmitted stereo
signal. The receiver detects and evaluates the pilot tone.
̈ When the transmitter is set to mono operation, deactivate the pilot
tone evaluation.
Display
Meaning
No icon
The pilot tone evaluation is deactivated.
The pilot tone evaluation is activated. The receiver does
not receive a pilot tone because the transmitter operates
in mono mode.
The pilot tone evaluation is activated. The receiver receives
a pilot tone.
Adjusting the limiter– “Limiter”
Advanced Menu
Limiter
O ff
Limiter
– 6 d B
Limiter
O ff
Call up “Limiter”
Select the desired
setting
Store the setting
“Stored”
CAUTION!
Danger of hearing damage due to a switched-off limiter!
The limiter limits the volume at the headphone output
PHONES and thus protects your hearing. With the limiter
switched off, the receiver is capable of producing high
sound pressure levels. Prolonged exposure to high sound
pressure levels can cause permanent hearing defects.
̈ Set the limiter to a low level before putting the
earphones on.
̈ Do not continuously expose yourself to high volumes.
You can adjust the limiter in 6-dB steps from –18 dB to –6 dB or switch it
off (OFF).
18
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Adjusting settings via the operating menu
Adjusting the contrast of the display panel – “LCD Contrast”
Advanced Menu
LCD Contrast
7
LCD Contrast
1 0
LCD Contrast
7
Call up
“LCD Contrast”
Select the desired
setting
Store the setting
“Stored”
You can adjust the contrast of the display panel in 16 steps.
Resetting the settings made in the operating menu – “Reset”
SET
Advanced Menu
Reset
Reset
Yes
Call up “Reset”
Select the desired
setting; apply the
setting
SET
“Stored”
When resetting the settings made in the operating menu, only the
selected settings for the pilot tone and for the frequency banks “U1” to
“U6” remain unchanged. For an overview of the factory-preset default
settings, refer to the enclosed frequency information sheet.
Displaying the software revision – “Software Revision”
You can display the current software revision of the diversity receiver.
19
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Synchronizing an SR 300 IEM G3 transmitter with the diversity receiver
Synchronizing an SR 300 IEM G3
transmitter with the diversity receiver
When synchronizing the SR 300 IEM G3 transmitter with a diver-
sity receiver, please observe the following:
̈ Only use a transmitter and a diversity receiver from the same
frequency range (see the type plates on the transmitter and
the diversity receiver).
̈ Make sure that the desired frequencies are listed in the
enclosed frequency information sheet.
You can also contact your Sennheiser partner who will be
pleased to calculate intermodulation-free frequencies for you.
̈ Make sure that the desired frequencies are approved and
legal in your country and, if necessary, apply for an operating
license.
Synchronization allows you to quickly and easily transfer transmitter and
receiver settings from one device to the other, especially if you want to set
up a multi-channel system. There are two transfer directions:
1. Easy Setup Sync: Transfer from the receiver to one or several trans-
mitters
Once you have performed a frequency preset scan with a receiver, you
use the Easy Setup Sync function to transfer unused frequency presets
from the receiver to the transmitters. In order to set up a multi-channel
system, you use the diversity receiver to transfer the unused channels
from the selected frequency bank one after the other to the transmit-
ters, thus ensuring that all transmitters of a multi-channel system
operate on intermodulation-free frequencies.
2. Sync: Transfer from a transmitter to a receiver
Once you have selected and set the desired receiver settings on the
transmitter (either manually or using the Easy Setup Sync function),
you transfer these settings to a receiver. This configures the receiver
and establishes a transmission link between transmitter and receiver.
When carrying out the Sync function, the transmitter’s current
frequency bank and channel setting as well as the receiver parameters
adjusted via the “Sync Settings” submenu are transferred to the
EK 300 IEM G3 receiver via the infra-red interface.
Setting the transmitters to intermodulation-free
channels (Easy Setup Sync)
Upon delivery, the SR 300 IEM G3 transmitter and the diversity receiver are
synchronized with each other. If, however, you cannot establish a trans-
mission link between transmitter and diversity receiver, you first have to
use the diversity receiver to determine intermodulation-free channels and
then transfer these channels to the transmitters. In doing so, no transmis-
sion links are established.
̈ On all transmitters, call up the “Easy Setup” menu item.
“Easy Setup Sync” appears on the display panels of the transmitters.
The RF signals of the transmitters are deactivated. The transmitters
await the transfer of a channel and a frequency bank via their infra-red
interfaces.
̈ With a diversity receiver, perform a frequency preset scan to scan the
frequency banks for unused channels (“Scan New List”, see page 15).
̈ Select a frequency bank with a sufficient number of unused channels
and a channel on this receiver (“Current List”, see page 15).
20
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Synchronizing an SR 300 IEM G3 transmitter with the diversity receiver
̈ Start the Easy Setup Sync function by placing the infra-red interface of
this diversity receiver in front of the infra-red interfaces ¿ of all trans-
mitters, one after the other.
¿
The diversity receiver transfers an unused channel from the selected
frequency bank to the first transmitter and the next unused channel to
the second transmitter and so on. As soon as a transfer is completed,
the display panel of the transmitter displays the numbers of the trans-
ferred frequency bank and channel.
Synchronizing transmitters with diversity receivers
(Sync)
In a second step, you transfer the frequency bank and channel settings
from the transmitters to other diversity receivers (synchronization) and
thus establish the transmission links.
If you want to carry out synchronization at a later time:
̈ Press the jog dial on the transmitter.
The frequency bank and the channel are stored. The transmitter’s
RF signal is activated again. You can synchronize this transmitter with
a diversity receiver at any time (see the instruction manual of the
transmitter).
To carry out synchronization immediately:
̈ Start the Sync function by placing the infra-red interface of the first
diversity receiver in front of the infra-red interface ¿ of the first trans-
mitter while simultaneously pressing the SYNC button » on the trans-
mitter.
¿
»
The diversity receiver is set to the same frequency bank and channel as
the transmitter. The transmitter’s RF signal is activated again. A trans-
mission link is established between the first transmitter and the first
diversity receiver.
̈ Synchronize each of the remaining transmitters with one of the
remaining diversity receivers.
Your multi-channel monitoring system is now ready for operation.
Instead of synchronizing, you can manually set the transmitters to the
same frequency bank and channel that you set on the corresponding
diversity receivers.
Using freely selectable receiving frequencies
You can also freely select the receiving frequencies and store these
frequencies in the frequency banks “U1” to “U6”.
It might be that the freely selected frequencies are not inter-
modulation-free
If you are using frequencies from the frequency banks “U1” to
“U6”, it might be that the receiving frequencies are not intermod-
ulation-free.
̈ Contact your Sennheiser partner who will be pleased to
calculate intermodulation-free frequencies for you (see
̈ Set each diversity receiver to the same frequency bank (“U1” to “U6”).
21
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Cleaning the diversity receiver
̈ On one of the receivers, select a channel within this frequency bank and
assign this channel a receiving frequency (see page 17).
̈ Synchronize a transmitter with this receiver (see the instruction
manual of the transmitter).
OR:
̈ Manually set the transmitter to the same frequency bank and channel
that you set on the receiver.
̈ Repeat for the remaining transmitters and receivers as described
above.
Cleaning the diversity receiver
CAUTION!
Liquids can damage the electronics of the receiver!
Liquids entering the housing of the device can cause a
short-circuit and damage the electronics.
̈ Keep all liquids away from the receiver.
̈ Do not use any solvents or cleansing agents.
̈ Use a cloth to clean the diversity receiver from time to time.
Recommendations and tips
... for the diversity receiver
• Make sure that the antenna and the earphones cable do not cross.
• For best results, make sure that the transmitter sensitivity is correctly
adjusted.
... for optimum reception
• Transmission range depends to a large extent on location and can vary
from about 10 m to about 150 m. There should be a “free line of sight”
between transmitting and receiving antennas.
• To avoid overloading the receiver, observe a minimum distance of 5 m
between transmitting and receiving antennas.
... for multi-channel operation
• When operating a multi-channel system, you should only use the chan-
nels within one frequency bank. Each of the frequency banks “1” to
“20” accommodates factory-preset frequencies which are intermodu-
lation-free.
• The frequency banks “U1” to “U6” allow you to freely select and store
receiving frequencies (see page 17).
• When using several transmitters simultaneously, interference can be
avoided by maintaining a minimum distance of 20 cm between two
transmitters.
22
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If a problem occurs ...
If a problem occurs ...
Problem
Possible cause
Possible solution
Diversity
Lock mode is activated Deactivate the lock mode
(see page 10).
receiver cannot
be operated,
“Locked”
appears on the
display panel
No operation
indication
Batteries are flat or
accupack is flat
Replace the batteries or
recharge the accupack
(see page 7).
No RF signal
Transmitter and receiver Set the transmitter and
are not on the same
channel
receiver to the same channel.
Synchronize the transmitter
with the receiver
(see page 20).
Transmission range is
exceeded
Check the squelch threshold
setting (see page 14).
Reduce the distance between
transmitter and receiver.
RF signal is deactivated Activate the RF signal
(“RF Mute“)
(see the instruction manual
of the transmitter).
RF signal avail- Transmitter is muted
able, no audio
signal, “MUTE”
Cancel the muting
(see the instruction manual
of the transmitter).
appears on the
display panel
Receiver’s squelch
threshold is adjusted
Reduce the squelch threshold
setting (see page 14).
too high
SR 300 IEM transmitter Deactivate the pilot tone
is set to mono operation evaluation (see page 18).
and therefore doesn’t
transmit a pilot tone
SR 300 IEM transmitter Activate the pilot tone
is set to stereo opera-
tion and therefore
evaluation (see page 18).
transmits a pilot tone
Audio signal has Transmitter sensitivity Adjust the transmitter
a high level of
background
noise
is adjusted too low
sensitivity correctly
(see the instruction manual
of the transmitter).
Audio signal is Transmitter sensitivity Adjust the transmitter
distorted
is adjusted too high
sensitivity correctly
(see the instruction manual
of the transmitter).
No access to a During scanning, an
certain channel RF signal has been
Set the transmitter operating
on this channel to a different
detected on this channel channel and redo the
and the channel has
been locked
frequency preset scan
(see page 15).
During scanning, a
transmitter of your
system operating on
this channel has not
been switched off
Switch the transmitter off
and redo the frequency
preset scan (see page 15).
If a problem occurs that is not listed in the above table or if the problem
cannot be solved with the proposed solutions, please contact your local
Sennheiser partner for assistance.
To find a Sennheiser partner in your country, search at
www.sennheiser.com under “Service & Support”.
23
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Accessories
Accessories
The following EK 300 IEM G3 accessories are available from your specialist
dealer:
Cat. No.
009950
009828
500432
Accessory
BA 2015 accupack
L 2015 charger
IE 4 earphones
Specifications
RF characteristics
Modulation
wideband FM
Frequency ranges
516–558, 566–608, 626–668,
734–776, 780–822, 823–865 MHz
(A to E, G, see page 3)
Receiving frequencies
1,680 frequencies,
tuneable in steps of 25 kHz
20 frequency banks, each with up
to 16 factory-preset channels
6 frequency banks, each with up
to 16 user programmable channels
Switching bandwidth
Nominal/peak deviation
Receiver principle
42 MHz
±24 kHz/±48 kHz
adaptive diversity
Sensitivity
(with HDX, peak deviation)
< 4 μV, typ. 1.6 μV for 52 dBArms S/N
Adjacent channel rejection
typ. ≥ 65 dB
Intermodulation attenuation typ. ≥ 70 dB
Blocking
Squelch
≥ 80 dB
Off, 5 to 25 dBμV,
adjustable in steps of 2 dB
Pilot tone squelch
can be switched off
Sennheiser HDX
AF characteristics
Compander system
S/N ratio
(1 mV, peak deviation)
approx. 90 dB
THD
≤ 0.9%
Output power at 2.4 V,
5 % THD, nominal deviation 2 x 100 mW at 32 Ω
High Boost
Limiter
+8 dB at 80 kHz
–18 dB to –6 dB,
adjustable in steps of 6 dB,
can be switched off
Overall device
Temperature range
Power supply
–10°C to +55°C
2
AA size batteries, 1.5 V
or BA 2015 accupack
Nominal voltage
2.4 V
Power consumption:
• at nominal voltage
approx. 140 mA
• with switched-off receiver ≤ 25 μA
24
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Manufacturer Declarations
Operating time
approx. 4 to 6 hrs
(depending on volume level)
approx. 82 x 64 x 24 mm
approx. 125 g
Dimensions
Weight (incl. batteries)
In compliance with
Europe
EMC:
EN 301489-1/-9
Radio: EN 300422-1/-2
Safety: EN 60065
USA
47 CFR 15 subpart B
Approved by
Canada
Industry Canada RSS 123
IC 2099A-G3SREK300
limited to 806 MHz
Connector assignment
3.5 mm jack plug
L
R
Manufacturer Declarations
Warranty
Sennheiser electronic GmbH & Co. KG gives a warranty of 24 months on this
product.
For the current warranty conditions, please visit our web site at
In compliance with the following requirements
• RoHS Directive (2002/95/EC)
• WEEE Directive (2002/96/EC)
Please dispose of the diversity receiver at the end of its
operational lifetime by taking it to your local collection point or
recycling center for such equipment.
• Battery Directive (2006/66/EC)
The supplied batteries or rechargeable batteries can be recycled.
Please dispose of them as special waste or return them to your
specialist dealer. In order to protect the environment, only
dispose of exhausted batteries.
CE Declaration of Conformity
•
0682
• R&TTE Directive (1999/5/EC)
Before putting the device into operation, please observe the respective
country-specific regulations.
25
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Manufacturer Declarations
Statements regarding FCC and Industry Canada
This device complies with Part 15 of the FCC Rules and with RSS-210 of
Industry Canada. Operation is subject to the following two conditions: (1)
this device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause
undesired operation.
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in
a residential installation. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a partic-
ular installation. If this equipment does cause harmful interference to
radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the inter-
ference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
This class B digital device complies with the Canadian ICES-003.
Changes or modifications made to this equipment not expressly approved
by Sennheiser electronic Corp. may void the FCC authorization to operate
this equipment.
Before putting the device into operation, please observe the respective
country-specific regulations!
26
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Index
Index
Accessories 24
Lock mode
activating/deactivating (Auto
Lock) 16
Accupack
charging
inserting
7
7
deactivating temporarily
lock mode icon
6
Advanced Menu (extended menu)
overview 12
Locked 10
settings 17
LOW BATT
5
M
Auto Lock (activating/deactivating
the lock mode) 16
Menu (main menu)
overview 11
settings 14
B
Balance (adjusting the
balance) 16
and Focus mode) 16
Batteries
N
battery status
inserting
Buttons
ESC button
function of the ~ 11
SET button
UP/DOWN button
6
7
O
5
Operating menu
overview 11
settings 14
using 12
P
5
5
C
Channel
Pilot Tone (activating/deactivating
assigning a frequency 17
selecting 15
setting a frequency 17
the pilot tone
evaluation) 18
R
D
Receiver
Displays
adjusting the contrast of the dis-
play panel (LCD Contrast) 19
AF (audio level)
LOW BATT
MUTE
overview
RF (RF level)
standard displays 10
adjusting the volume
cleaning 22
9
switching off
switching on
9
9
6
6
Reset (resetting the settings made
6
6
RF signal indication
6
S
Software Revision (displaying the
E
software revision) 19
Earphones, connecting
7
Squelch (adjusting the
Easy Setup (scanning for, releasing
squelch) 14
and selecting frequency
presets) 15
T
Transmitter (synchronizing with
F
receiver) 20
Frequency bank
selecting 15
Troubleshooting 23
Tune (setting the receiving
frequencies and frequency
banks) 17
setting a frequency 17
~ system
3
Frequency Preset (selecting a
frequency bank/
channel) 15
Frequency presets
releasing (Reset List) 15
searching for unused ~ (Scan New
List) 15
selecting (Current List) 15
H
High Boost (activating/
deactivating the treble
boost) 16
L
LCD Contrast (adjusting the
contrast of the display
panel) 19
Limiter (adjusting the limiter) 18
27
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Sennheiser electronic GmbH & Co. KG
Am Labor 1, 30900 Wedemark, Germany
Printed in Germany
Publ. 01/09
529681/A01
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