Yaesu HX370S Operating Manual page 6

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4. OPERATION
4.1 INITIAL PROCEDURE
NOTE: Never key the transceiver without an antenna connected. Damage may occur to the
transceiver. Do not operate the transceiver while charging.
1.
Install the belt clip on the transceiver if desired. Use the one Phillips-head screws
included with the clip to mount the clip to the back of the transceiver.
2.
Install the nylon carrying strap on the belt clip if desired.
3.
Install the battery pack on the transceiver (see figure X and section 5.1)
4.
Install the antenna to the transceiver.
5.
Turn the POWER/VOLUME CONTROL knob clockwise to turn the transceiver.
NOTE: Water resistance of the transceiver is assured only when the battery pack and
antenna are attached to the transceiver.
4.2 RESEPTION
1.
Turn the POWER/VOLUME CONTROL knob clockwise to turn the transceiver on.
2.
Turn up the POWER/VOLUME CONTROL knob until the noise or audio from the
speaker is at a desired level.
3.
Select a channel that has no signal being received (no one is transmitting on the
channel) and only noise heard.
4.
Press the SQ key. Then press [UP] or [DOWN] key and stop immediately after the noise
disappears. This condition is known as the "Squelch Threshold." If the knob is turned
clockwise past this point, weak signals may not be received. No noise or no signal is
heard until a signal is received that exceeds the squelch threshold.
5.
To change channel, press the [UP] or [DOWN] key. Sometimes, a slight adjustment of
the squelch threshold is needed as some channels have a higher noise level than
others.
6.
Please refer to the Owner's Manual Supplement for a complete listing of all USA,
International and Canadian VHF Marine channels and their use.
4.3 TRANSMISSION
1.
Perform steps 1 through 7 of RECEPTION.
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 "L" is displayed on the
LCD. This indicates low power, approximately 1 watt.
4.
Note: Transmitting on 1 watt prolongs battery life. Low power (1 watt) should be
selected whenever possible.
5.
If using low power is not effective, select mid power (2.5 watts) or high power (5 watts)
by pressing the H/L key until "M" (mid power) or "H" (high power) is displayed.
6.
When receiving a signal, wait until the signal stops before transmitting. The transceiver
cannot transmit and receive simultaneously.
7.
Press the PTT (push-to-talk) switch. The "TX" indicator is displayed during
transmission.
8.
Speak slowly and clearly into the microphone. Hold the microphone about 1/2 to 1 inch
away from your mouth.
9.
When the transmission is finished, release the PTT switch.
10. Refer to the OWNWER'S MANUAL SUPPLEMENT for standard transceiver operating
procedures.
6/14
FCC ID: K6630083220
IC ID: 511B-30083220
Operating Manual
Vertex Standard Co., Ltd.

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