User's Manual

Canam Technology, Inc. (CTI)
MARK-IV CHANNELIZED (Class A Narrowband) SIGNAL BOOSTER WITH AUTOMATIC
OUTPUT LEVEL CONTROL M4-ChOLC
User’s Operations and Maintenance Manual (O&M)
The frequency is given in MHz, and it can be changed in steps of 12.5, 25, 50 or 100 kHz.
After the frequency has been selected or entered, click on the
Send button to change
the M4-ChOLC’s operating frequency.
Figure 10: Programming the M4-ChOLC Operating Frequency
F.2 M4-ChOLC Output Level
This front panel potentiometer adjustment can be accessed using a small flat screwdriver.
By turning it clockwise, the output power level will be increased up to the maximum gain.
Turning the potentiometer counter-clockwise, the output power will decrease up to 10 dB,
which is the gain control range.
To adjust the Output Power level, use the test circuit shown in
Figure 11. Adjust the RF
Generator frequency to match the M4-ChOLC operating frequency, and the Generator
Power (P
gen
) to – 50 dBm.
Turn counter-clockwise the RF Power Level adjustment until it reaches the lowest power
output.
Using a Spectrum Analyzer or a Communications Service Monitor, measure the M4-ChOLC
Output Power, and turn the Out Adjustment clockwise until reaching the desired output
power.
MARK-IV CHANNELIZED Signal Booster module (M4-ChOLC) O&M Manual Page 15 of 20