Installation Guide

9261-8252 Issue 07
Description
Page 16
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Adjust the Line Level slider, until the Line Level bar is green:
Click Stop Monitoring Line Level button.
Next, using a modulation meter and with transmitter keyed on in Analogue Mode, adjust the Speech
Deviation and Speech Limiter sliders as follows:
Slider Line Level 25 KHz Bandwidth 12.5 KHz Bandwidth
Speech Deviation -13dBm 3.5KHz 2.0KHz
Speech Limiter 7dBm 4.5KHz 2.5KHz
It may be necessary to iteratively adjust these two sliders, as they are interactive.
4.10 RF POWER ADJUSTMENT
Click Start Monitoring Power Output and then Key Tx On – Analogue Mode. Using a power meter on
the transmitter output, adjust the Forward Power slider for the required output. This power must agree
with the Set Alarm Power level or false fault conditions may be generated. DO NOT SET TO MORE
THAN 5 WATTS!
If the transmitter frequency has not been changed by more than about 5MHz, then further adjustment
of the frequency, deviation and power level MAY not be necessary, once the VCO has been adjusted
onto frequency.
The alignment window must be closed, in order to close the field programmer program.