Transmission; Transmit Time-Out Timer ( Tot ) - Standard Horizon HX280S Owner's Manual

6.4 TRANSMISSION

1. Perform "6.3 RECEPTION" discussion above.
2. Before transmitting, monitor the channel and make sure it is clear.
THIS IS AN FCC REQUIREMENT!
3. For communications over short distances, press the
[ H/L ( )] key to select the Low power (1 watt: "
appears).
Note: Transmitting on Low power prolongs battery life.
Low power should be selected whenever possible.
4. If using Low power is not effective, select High power
(5 watts: "
key.
5. When receiving a signal, wait until the incoming signal stops before trans-
mitting. The transceiver cannot transmit and receive simultaneously.
6. Press the PTT (Push-To-Talk) switch to transmit. During
transmission, the "
play.
7. Position your mouth about 1/2 to 1 inch (1.2 ~ 2.5 cm)
away from the mic hole. Speak slowly and clearly into the microphone.
8. When the transmission is finished, release the PTT switch.
6.4.1 TRANSMIT TIME - OUT TIMER ( TOT )
While the PTT switch is held down, transmission time is limited to 5 minutes.
This prevents prolonged (unintentional) transmissions. About 10 seconds be-
fore automatic transmitter shutdown, a warning beep will sound from the
speaker. The transceiver automatically switches to the receiving mode, even if
the PTT switch is held down. Before transmitting again, the PTT switch must
first be released, then wait 10 seconds and then pressed again. This Time-
Out-Timer (TOT) prevents a continuous transmission that would result from an
accidentally stuck PTT switch.
The PTT switch is ignored for 10 seconds after the transceiver auto-
matically switches to the receiving mode by the TOT feature.
HX280S
" icon appears) by pressing the [ H/L (
" indicator will appear on the dis-
" icon
)]
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