VOLUME CONTROL KNOB
The VOLUME CONTROL KNOB is a rotatable
control on the top of the radio used to adjust the
receiver’s audio level in the speaker. Rotating this
knob in a clockwise direction will increase the
audio level. Counter-clockwise rotation will de-
crease the audio level. Minimum levels may be
programmed into the radio to prevent missed calls
due to too low of a volume setting.
CONTROL KNOB
The rotatable 16-position CONTROL KNOB
located on the top of the radio may be pro-
grammed to select trunked groups and conven-
tional channels or it may be programmed to select
systems. See SYSTEM/GROUP/CHANNEL SE-
LECTION for details.
A stop plate may be installed under the knob
to limit the maximum number of positions to less
than sixteen (16). It is normally factory installed
for fifteen (15) positions.
PTT BUTTON
Pressing the PTT BUTTON on the side of the
radio will enable the radio’s transmitter. The "TX"
status flag in the display will turn on when the radio
is transmitting. Releasing the PTT BUTTON will
return operation to receive mode.
When operating in a trunked system, the radio
may be programmed to automatically transmit
(without the operator pressing the PTT BUTTON)
to maintain communication with the site controller.
The "TX" status flag will turn on when the radio is
transmitting.
MONITOR BUTTON
Trunked Mode
When operating in trunked mode, pressing
the MONITOR BUTTON after an individual call
has been received will return the radio to the
group call mode. The radio will not respond on an
individual basis, but will then transmit group calls
when the PTT BUTTON is pressed. The radio will
also automatically return to the group call mode
after the programmed call-back time-out period
expires.
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