Operating instructions

SRM9030plus ~ PMR Mobile Radio User Guide

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 Outline Speaker Icon is not shown.

Hold the microphone a few centimetres 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 microphone in a

normal conversational manner.

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 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.

5.3.1 VOX Operation

If Voice Operated Transmit (VOX) is enabled, and the hands-free microphone is fitted, the

radio will automatically transmit all speech it hears above a threshold level and then return to

receive.