Time-Out Timer (Tot); Battery Strength Indicator; Monitor / Squelch Off - HYT TC-980 Manual

Time-out Timer (TOT)

Limits the amount of time the radio user can continuously transmit on a channel. If the user
holds down the PTT longer than the preprogrammed limit, the radio automatically stops
transmitting, and generates a warning tone until the PTT is released.
Your dealer may program the alert tone that sounds before the TOT timer nearly expires.
See Glossary for the definition of Time-out Timer.

Battery Strength Indicator

The TC-980 allows you to simply press one button to illuminate the LED batter gauge, which
emits different indications representing battery strength levels until the key is released.
Battery Strength
70% - 100%
50% - 70%
30% - 50%
10% - 30%
Less than 10%

Monitor / Squelch Off

Squelch Off
Causes the radio to forcibly unmute speaker to here activities on the current channel, whatever
the receive condition is. The radio speaker outputs audio when audio signal is present, or
LED Indication
Green
Orange
Red
LED is unlit when the programmed key is pressed, while flashes
red while the radio is operating.
LED is unlit when the programmed key is pressed. While the
radio standby, LED flashes red and a low-pitched tone sounds at
intervals of ten seconds, a press of the PTT then shall activate
the talk prohibit tone.
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TC-980 Owner's Manual