VOLUME CONTROL KNOB
The VOLUME CONTROL KNOB is a ro-
tatable 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 rota-
tion will decrease 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 idle/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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