Standard Horizon HX290E, Руководство пользователя

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Page 19
HX290E
6.4 TRANSMISSION
1. Perform “
6.3 RECEPTION
” discussion above.
2. Before transmitting, monitor the channel and make sure it is clear.
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 2 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.
NOTE
The
PTT
(
) switch is disabled for 10 seconds after the transceiver
automatically switches to the receiving mode by the TOT feature.