JRC JHS-770S -, Instruction Manual

Page: 49 / 162

Operation
4-5
4.2.3 Communicating with the radiotelephone
The VHF radiotelephone is operated by means of a handset.
■
Procedure
■
1
1
1
.
.
.
When operating on a controller without the access
rights (OCC is displayed), press the jog dial to
obtain the access right.
After obtaining the access right, disappears OCC mark on the
screen and the controller becomes accessible to the VHF
transceiver. Also, just lifting a handset from the cradle
enables to obtain the access right.
When hook-switch setting is invalid, the access right
cannot be acquired by lifting handset from the
cradle.
2
2
2
.
.
.
Adjust the volume on the loudspeaker by turning the
volume control.
When receiving no signal, make a noise as a guide by
turning the squelch control counterclockwise until opened.
3
3
3
.
.
.
Turn the squelch control to an appropriate position.
Normally, the squelch control would be adjusted to where
rotated the squelch control clockwise one additional tick from
the squelch closing position.
4
4
4
.
.
.
Lift the handset from the cradle.
5
5
5
.
.
.
Press the PTT key to talk.
¾ The TX mark will appear on the screen to show
the equipment is transmitting. Releasing the PTT
key will return to the receiving condition.
¾
On duplex channels, enabled to listen to the
receiving audio even during the PTT ON.
(In the case of the JHS-780D model.)
6
6
6
.
.
.
If necessary, change the channel using the
numeric keypad or jog dial.
Channels can be changed as long as showing the status
display and releasing the PTT key. Additionally, when
entering the channel using the numeric keypad, e.g. in
case of CH18, enter
1
DW
8
TEST
.
7
7
7
.
.
.
When finished the communication, return the
handset to the cradle.
Placing the handset back on-hook will return the channel to CH16. When hook-switch
setting is invalid, a channel is not changed by returning the handset to the cradle.
Note
Note