Auto Transpond; Off Hook Decode; Time-Out Timer (Tot) - HYT TM-600 VHF Manual

Please refer to the [TTS] key for 2-Tone transmission.
3. Upon release the [PTT], the signalling squelch is disabled and LED flashes orange.
Green LED lit up when signal is received.
4. If the Monitor key (programmable) is pressed, or no signal is received within the
preset time period, the signalling squelch is enabled.

Auto Transpond

The Auto Transpond feature can be programmed by your dealer to operate with Code
Squelch. If the Auto Transpond feature is enabled, radio will automatically transpond a
signal when a call with matched signalling is received. Your dealer may program one type
of call response from the following:
1. Alert
2. Transpond
3. Alert & Transpond
Press any key to stop transpond.

Off Hook Decode

If the feature is enabled by your dealer, CTCSS/CDCSS decode signalling is active no
matter the microphone is in the off/on hook condition. If the feature is disabled,
CTCSS/CDCSS decode signalling is disabled while the microphone is in the off hook
condition.

Time-out Timer (TOT)

▇
Time-out Timer（TOT）
The TOT feature is to prevent user from transmitting on the channel for extended period of
time. This also protects the radio from damage caused by long time transmission.
Once a continuous transmission exceeds the preset time (15～1200s programmable), the
transmission is automatically terminated and alert tone is heard. The alert tone ceases
upon release the [PTT].
The TOT default is 180s, it meets normal operation needs. Any change should be
permitted by professional technicians.
▇ TOT Pre-alert
The radio has a TOT Pre-alert timer. The radio will emit the Pre-alert tone at the
programmed time (1～10s before the TOT timer expires).
第 21 页 共 31 页