Chapter 4: Setting the Gain for Radio Rebroadcast and PA
e-Q2B Siren System
35
5.
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 flat-head screwdriver into the slot on the
RADIO
potentiometer on the
front of the Q2B (Figure 4.2). Turn it clockwise to increase the volume until audio feedback (squeal)
occurs or counterclockwise 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.
6.
To turn off radio rebroadcast, press the
RADIO
button. The button dims to indicate it is OFF.
Figure 4.2 Gain control for radio rebroadcast
REMOTE MIC
RADIO
PARK
2
A/H
4
AUX
6
8
BRAKE
1
33
RING
GRND
10
CYCLE
12
HORN
5
RMBLR
ENBL
RMBLR
RADIO
7
RADIO
9
RADIO
11
GAIN CONTROL FOR
RADIO REBROADCAST
290A6815
Setting the Gain for Public Address (PA)
NOTE:
The PA gain can only be adjusted if the microphone is connected through the jack on control
head. It is not available through the
REMOTE
connection on the back of the siren amplifier.
To adjust the PA gain, turn the
VOLUME
knob clockwise to increase the volume or counterclockwise to
decrease the volume (Figure 4.3).
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 public address
AIR
HORN
BRAKE
CYCLE
RADIO
VOLUME
OFF
MANUAL
WAIL
YELP
PRTY
KNOB FOR ADJUSTING PA VOLUME
VOLUME CONTROL
ONLY WORKS FOR
CONTROL HEAD MIC
JACK, NOT SIREN
MIC JACK
290A6816
Summary of Contents for e-Q2B
Page 2: ...blank page ...
