DESCRIPTION (Continued)
work in systems having 12.5 KHz channel spacing with
a maximum system deviation of +2.5
KHZ.
The RU156 operates in the UHF frequency range,
also in three bands. The RU156A operates from 421.4
to 450 MHz; the
RU156B
operates from 450 to 462 MHz,
and the RU156C operates from 462 to 512 MHz.
The radio can store up to sixteen channels with-
out battery backup.
All radios
ctnne
with CTCSS tone
and scanning capabilities.
A monitor switch and a
night/day switch are also standard.
(Refer to Figure 1 for the following descriptions.)
VOLUME CONTROL/ON-OFF SWITCH
This control varies the speaker volume.
Clock-
wise rotation turns the radio on and increases the
volume. When the radio is turned off and back on it
will revert back to the state it was in before being
switched off. The radio will remember the last
state it was in even if the power plug is dis-
connected.
SQUELCH CONTROL
The squelch control is used to eliminate the
speaker noise when not receiving a transmission.
Move
the control clockwise until noise is heard (if in the
SCAN mode the receiver will stop scanning).
Then
move the control counter-clockwise until the speaker
noise is squelched (if in the SCAN mode the receiver
will start to scan approximately two seconds after
the speaker squelches).
-2-
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