COMTEK PR-75a - Manual (Page 4)

PR-75a CONTROLS AND INDICATORS
Page 2
PR-75a Controls
n BATTERY COMPARTMENT:
The battery compartment
features a hinged battery cover
and a polarity protection design
to ensure that only proper
battery polarity can occur.
o AUDIO OUTPUT JACK:
This mono audio output jack
accommodates any low impedance
mono or stereo headphone; also
functions as automatic on/off power
switch when headphone is plugged
in and also as rechargeable battery
charging access.
p VOLUME CONTROL:
This control has 50 dB of range to adjust the audio
output for a comfortable listening level
(clockwise for maximum level).
q POWER / RECEIVER STATUS INDICATOR:
LED indicator will display these four functions:
a. Fast blinking ----- Seeking channel
b. Continuous ------- Receiving signal
c. Steady slow flash -------- No signal
d. Rapid flash ------ Low battery
Additionally there is an audible
beeping to indicate a low battery.
r AutoSmart-Tuning TM PUSH BUTTON:
This one-button tuning control (AST)
allows the receiver to seek other channels
within the frequency group to which it is tuned.
s DATA I/O PORT:
For channel programming or specialty channel sequencing.