RF-Link Technology XL-2000/H User Manual

Page of 5
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: 75
Ω 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)