PM1500 Mobile Radio with Control Head 17
Basic Operating Procedures
Transmitting on Conventional Modes
Time-Out Timer
This feature limits the amount of time you can continuously transmit.
Your system manager can program the timer for up to 465 seconds at
15-second intervals. PM1500 radios are programmed at the factory to
time-out after 60 seconds.
Note: You hear a low-pitched alert tone four seconds before your
transmission is about to expire.
If you hold down the PTT button longer than the programmed time,
you hear a continuous, low-pitched tone. This tone ceases to sound
when you release the PTT button, and you are not allowed to
transmit.
Follow these steps to transmit while on a conventional mode:
1 Select a desired zone and mode.
2 When a mode becomes available, press and hold the PTT
button to transmit. Speak clearly into the mic.
Note: If you try to transmit on a receive-only mode, you will hear a
continuous low-pitched (“invalid mode”) tone.
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