User manual

SRP9170 and SRP9180 ~ PMR Portable Radio User Manual

5.5 TRANSMITTING

To avoid interfering with other users of the channel, listen first to ensure no transmissions are

occurring. Make sure that the Outline Speaker Icon

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is not shown.

Hold the portable a few centimetres from the mouth, press the Press-To-talk (PTT) switch and

note that the Tx Light Emitting Diode (LED) is Red. Speak clearly across the face of the portable

in a normal conversational manner. Note that the microphone is located near the bottom right

hand corner of the portable radio’s speaker grille.

In most systems it is important to wait a short time between pressing the PTT and commencing

to speak. This ensures that the path is properly established and avoids lost or truncated speech.

Use the correct operating procedure and keep transmissions short.

Release the PTT as soon as you finish speaking your message.

Notes: 1. A channel may be programmed as “Receive-only” or “Transmit Inhibit” which

disallows PTT while the radio is receiving a signal. A continuous tone will be heard if

PTT is disallowed.

2. A Transmit Limit Timer may be setup 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.