8 basic operation, 1 turning on and off the transceiver, 2 reception – Standard Horizon HX-870 User Manual

Page 25: 3 transmission

Page 25

HX870

8 BASIC OPERATION

NOTE

Before operating the

HX870 for the first time, it is recommended that

you fully charge the battery. See section “

6.1.4 Using the SBH-12

Charger Cradle” for details.

8.1 TURNING ON AND OFF THE TRANSCEIVER

1. Press and hold the key on the left side of the radio to turn the radio on.

2. Press and hold the key again to turn the radio off.

8.2 RECEPTION

1. Press the

SQL key, then press the CH▼ key until noise is heard from the

speaker. This state is known as “squelch off”.

2. Press the

VOL−/VOL+ key until noise or audio from the speaker is at a

comfortable level.

3. Press the

SQL key, then press the CH▲ key until the random noise disap-

pears. This state is known as the “squelch threshold”.

4. Press the

CH▼/CH▲ key to select the desired channel.

Refer to the channel chart on Pages 125 to 127 for avail-

able channels.

5. When a message is received, adjust the volume to the

desired listening level. The “

[BUSY]” indicator on the

display indicates that communications are being received.

DISTRESS

VOL

118°09.582

33°37.120

LOC 09.56

BUSY

USA

TIME

LON

LAT

MEM

P-SET

8.3 TRANSMISSION

1. Perform steps 1 through 4 of RECEPTION.

2. Before transmitting, monitor the channel to ensure it is clear.

THIS IS AN FCC REQUIREMENT!

3. Press the

PTT (push-to-talk) button. The “[TX]” indicator

on the LCD is displayed.

4. Speak slowly and clearly into the

MIC hole.

5. When the transmission is finished, release the

PTT button.