Chapter 4: Setting the Gain for Radio Rebroadcast and PA
SmartSiren Platinum Convergence Network
38
4.
Stand outside of the vehicle and note the volume level of the radio rebroadcast. If the volume
is too loud or too soft, insert a small flat-head screwdriver in the gain control port for radio
rebroadcast (
RAD VOL
) on the front of the siren amplifier/relay module (Figure 4.2). Turn it
counter-clockwise to increase the volume until audio feedback (squeal) occurs or clockwise to
decrease the volume.
5.
To turn off radio rebroadcast, press
Button 7
.
Figure 4.2
Gain control for radio rebroadcast (siren amplifier/relay module)
RADIO REBROADCAST
GAIN CONTROL
Setting the Gain for Public Address (Microphone Volume)
The PA gain control port on the front of the siren amplifier is for select models that require the
microphone to be connected to the siren.
To adjust the PA gain:
1.
Stand outside the vehicle in an enclosed area and press the push-to-talk button on the control
head microphone. Speak into the microphone in a normal tone of voice.
2.
If the speaker volume is too loud or too soft, insert a small screwdriver in the PA gain control
port (
PA VOL
) on back of the control head. (Figure 4.3). Turn it clockwise to increase the volume
until audio feedback (squeal) occurs or counter-clockwise to decrease the volume.
NOTE:
Audio feedback depends upon the microphone gain, open windows, speaker placement,
and the proximity of reflecting surfaces such as walls, buildings, or other vehicles.
Figure 4.3
Gain control for PA (amplifier/relay module)
PA GAIN CONTROL
