SRP9100 ~ PMR Portable Radio User Guide
TNM-U-E-0047 Issue 1.2a Page 14 © Comgroup Australia 2010
5.3 T
RANSMITTING
To avoid interfering with other users of the channel, listen first to ensure no
transmissions are occurring. Make sure that the Speaker Icon is not shown.
Hold the portable a few centimeters from the mouth, press the “Press to talk”
(PTT) switch and note that the Tx-LED is RED. Speak clearly across the face
of the portable in a normal conversational manner. Note that the microphone
is on the top left hand side of the radio.
In most systems it is important to wait a short time between pressing PTT and
commencing to speak. This ensures that the path is properly established and
avoids lost or distorted speech.
Use the correct operating procedure and keep transmissions short.
Release the PTT switch as soon as the message is finished.
Notes: 1 A channel may be programmed as “Receive-only” or “Transmit
Inhibit” may be programmed which disallows PTT while the radio is
receiving a signal. A continuous tone will be heard if PTT is
attempted.
2 A Transmit Limit Timer may be set-up that limits a continuous
transmission on a channel. The last 10 seconds before the timer
expires may be accompanied by warning tones.
3 The radio may be programmed to send a Selcall (ANI) when the
PTT is pressed or released. This may introduce a short delay
before the microphone is enabled or after PTT is released.
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