6. When a signal is received, adjust the volume (Press the [VOL] key, followed by the [T]/[S] key) to desired listening level. The TX/BUSY indicator illuminates green indicating that the channel is being used.
NOTE
You may change the speaker audio to have a high or lower sounding pitch to assist listening in quiet or noisy environments. See Menu item “02 PC (AUDIO PITCH CONTROL)” (page 32) for details.
6.4 TRANSMISSION
1.Perform the “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 until “
” is displayed on the LCD. This indicates Low power (approximately 1 watt).
Note: Transmitting on 1 watt prolongs battery life. Low power (1 watt) should be selected whenever possible.
4. If using Low power is not effective, select Medium power (2.5 watts: “
” icon appears), High power (5 watts: “
” icon appears), or Normal power (6 watts: No icon) by pressing the [H/L(
)] 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 
transmission, the “
” indicator will appear on the display and the TX/BUSY indicator will grow red.
7.Position your mouth about 1/2 to 1 inch (1.2 ~ 2.5 cm)
away from the small mic hole. Speak slowly and clearly into the micro- phone.
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 before automatic transmitter shutdown, a warning beep sounds 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
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