User Manual

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switch on the microphone down while dialing. The
DTMF microphone will automatically key the
transmitter.
SELECTIVE SIGNALING
Selective signaling is a method in conventional radio systems for
controlling the muting and unmuting of the receive audio. This allows
the radio operator or dispatcher to selectively call an individual radio or
group of radios. The PANTHER 300M radio supports selective
signaling in Type 99.
q In a selective signaling environment, the PANTHER 300M radio
operates in one of two states, Monitor mode or Selective Call mode.
In the monitor mode, the decoder's muting of the receive audio amp
is turned OFF and the user hears all calls on the channel.
In the selective mode, the encoder and decoder is turned ON and
only calls intended for the user will be heard.
q Selective signaling operates with or without Channel Guard.
q If Channel Guard is enabled, the radio can be programmed with an
"And" or an "Or" option. If the "And" option is programmed, the
user will only hear calls with the correct selective signaling and
correct Channel Guard.
If the "Or" option is programmed, the user will hear calls with the
correct selective signaling as well as calls with the correct Channel
Guard. Calls with the correct Channel Guard do not have to have the
correct selective signaling to be heard.
q When the radio is in the selective mode and the radio receives a
selective call, the radio switches to the monitor mode and the
Tx/Busy LED flashes green. The Tx/Busy LED always flashes
green when the radio is in the monitor mode. The Tx/Busy LED is
also used to indicate a carrier on the channel. This combination is
shown below.
Monitor mode Without Carrier
On
Off
Monitor mode With Carrier
On
Off