2.4 GHz Wireless Video/Audio Transmission
Links XL-2000/H, XL-2000/HP models
EXCELLENT MICROWAVE LINK 2.4 GHz WITH FREQUENCY AGILE CHANNELS
XL 2000/H is a portable microwave link built-in weatherproof Nema enclosures. It is frequency agile
in 2.4 GHz band. XL 2000/H is excellent solution for mobile applications and TV broadcast
transmission up to 16 km line-of-sight.
Installation and Operating Instructions
1• Verify proper operation of camera and monitor/event recorder using coaxial cable prior
to installing wireless link.
2• Install transmitter and receiver units in secure and dry place.
3• Install antennas above the enclosures.
USE EXTREME CARE WHEN INSTALLING ANTENNAS NEAR POWER LINES.
4• Tighten antenna cable to receiver and transmitter. Apply a small amount of silicone to
flange to make a leak proof connection.
5• Connect video, audio, power, cables to units through flanges. Tighten
flanges to allow small air gap at bottom of enclosure.
IMPORTANT NOTE:
Power adapter must be kept dry.
6• Verify that LEDs are lit up and transmitter and receiver are on same channel.
7• Tighten lid of enclosure down.
DO NOT APPLY POWER TO THE TRANSMITTER UNLESS THE ANTENNA IS
CONNECTED. PERMANENT DAMAGE MAY RESULT.
To obtain the best picture quality and transmission distance, the following rules of thumb
should be followed:
1) Mount the transmitter and receiver antennas above human and mechanical traffic,
the higher the better. A 10 foot (or more) steel mast on top of a building is typical. Make sure
that the mast is well grounded to earth ground with an 8 AWG or larger wire. For
maximum range, the transmit and receive antennas must be 15 to 30 feet above all
obstacles in the line of sight.
2) Keep the transmission path as open as possible. Objects such as walls and
metallic objects near the transmission path may reduce the transmission distance.
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Changing Channels:
To change channels, simply depress the Toggle/Standby switch momentarily until the
LED for the desired channel pattern is lit up. Remember to change the receiver
channel as well, since it is not automatically changed when the transmitter channel is
changed.
INTERFERENCE
If interference such as lines in the pictures is observed, changing the transmission
channel may cure the problem. In some cases strong signals from wireless network could cause the problem
Also, AC generators in close proximity to the transmitter or receiver may cause lines
in the picture. Move the unit away from the source of the interference.
NO PICTURE
Check that the transmit and receive channels are set the same.
Verify all connectors are tight.
POOR PICTURE QUALITY
Raise transmitter and receiver antennas above ground and away from obstacles and
traffic, including foot traffic. Change the channel or check with a spectrum analyzer if any other source
transmitting. Use only clear channel, not disturbed by other transmitting source.
Use an optional high-gain dish antenna on the receiver. Verify all connectors are
tight. Shorten the receiver antenna feed cable.
RADIO SECTION:
Frequencies:
Channel 1: 2300 MHz
Channel 2: 2325 MHz
Channel 3: 2350 MHz
Channel 4: 2375 MHz
Channel 5: 2410 MHz
Channel 6: 2433 MHz default channel
Channel 7: 2452 MHz
Channel 8: 2481 MHz
RF Output Power: Nominal: +35dBm ± 3 dB conducted into 50 Ω unmodulated
carrier with final PA on.
Frequency Stability: 0.005% PLL Stabilized (50 ppm) over temperature range
Frequency Plan: Single upconversion with SAW IF filter for bandlimiting, Low
Side LO injection, 479.5 MHz IF
Modulated Bandwidth: 16 MHz (3 dB); 30 MHz (40 dB)
Harmonic Attenuation: > 20 dBc (2nd harmonic)
Spurious Attentuation: > 50 dBc
VIDEO SECTION:
Input Level: 1Vpp per NTSC/PAL standard
Input Impedance: 75Ω unbalanced
Modulation: Narrowband direct FM (for composite signal)
Modulation Index: 1.0 at 6.5 MHz for composite A/V signal (±6.5 MHz deviation)
Pre-emphasis: CCIR Rec 405-1
AUDIO SECTION:
Input Level: 1 Vpp Nominal
Input Impedance: 600 Ω
Bandwidth: 50 Hz – 10 kHz (3 dB)
Modulation: Wideband FM
Subcarriers: 6.0 MHz and 6.5 MHz
Modulation Index: 1.0 at 11 kHz for audio (±11 kHz deviation)
Pre-emphasis: yes
GENERAL:
Size: 3.4”W x 4.3”L x 1.2”D (8.64cm x 10.9cm x 3.05cm)
Weight: 1.5 lb (0.68 kg)
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CONNECTORS & INDICATORS:
RF Output: SMA connector epoxied to straight feed point
antenna in compliance with FCC rules part 15C, 15.203.
Specifications
Video: BNC female bulkhead mount
Audio1/2: RCA female bulkhead mount
Controls: Channel switch – momentary, toggles through modes/channels
Indicators: 8 channel LEDs that blink slowly in Standby mode
ENVIRONMENTAL:
Operating Temp.: -20 to 70 ºC
Storage: -30 to 85 ºC
Humidity: 95% noncondensing
Powerup
At powerup, the unit will retrieve the last used channel, program the PLL with this channel, and display the
channel by blinking the LED the same number as the channel number.
Displaying Current Channel
To display the current channel, press the pushbutton once and release. The current channel will blink.
After approx. 5 seconds, the current channel will again blink.
Changing to a New Channel
To change to a new channel, press the pushbutton once and release. The current channel will blink. Press
and release the pushbutton again before 5 seconds has elapsed and the channel will increment by 1 and the
LED will blink the new channel. Repeat this step until the desired channel is reached, waiting for the
blinking to stop each time before pressing the button again.
Once your desired channel is reached, wait 5 seconds until the LED again blinks your desired channel.
Your new channel is now saved in memory.
8 CHANNELS ARE AVAILABLE IN 2.4 GHz RANGE.
NOTE:
Model XL-2000/2 HAS 2 W RF POWER OUTPUT.
Model XL-2000/H HAS 5 W RF POWER OUTPUT.
Model XL-2000/HP HAS 10 W RF POWER OUTPUT
Note:
RECEIVER HAS 8 MATCHING CHANNELS, CHANNEL SETTINGS FOR THE RECEIVER IS
INTERNAL.
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TRANSMITTER/RECEIVER FRONT PANEL
Warning
Our microwave links are built in weatherproof boxes, but they
are not waterproof. Please make sure to protect
transmitter/receiver boxes from the rain and moisture.
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