Standard Horizon HX290, Руководство пользователя

Страница: 19 / 44

Page 19 HX290
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
key to select the Low power (1 watt: “ ” icon ap-
pears).
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: “ ” icon disappears) by pressing the key.
5. When receiving a signal, wait until the incoming signal
stops before transmitting. The transceiver cannot transmit and receive si-
multaneously.
6. Press and hold the PTT (Push-To-Talk:
) switch to
transmit. During transmission, the “ ” indicator will ap-
pear on the display.
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 min-
utes. This prevents prolonged (unintentional) transmissions. About 10 sec-
onds before 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. This Time-Out-Timer (TOT) prevents a con-
tinuous transmission that would result from an accidentally stuck PTT (
)
switch.
The PTT (
) switch is disabled for 10 seconds after the transceiver
automatically switches to the receiving mode by the TOT feature.