PRESIDENT CB JOYNSON ASC Manuel D'utilisation page 28

4) CHANNEL SELECTOR KEYS «CH ▲», «CH ▼» AND/OR
ROTARY KNOB:
The two keys, «CH ▲» and «CH ▼» on the microphone and on the front panel,
allow you to go up and down the channels. This can also be done using the
channel rotary knob.
«CH ▼» key: one quick press allows you to go down by one channel,
continued pression allows you to descend five channels per second.
«CH ▲» key: one quick press allows you to go up by one channel, continued
pression allows you to ascend five channels per second.
5) DISPLAY:
The display shows all the different functions. The bargraph shows the level of
reception and the level of power emitted.
JOHNSON
TX RX
RF 1 2 3 4
SIG 1 3 5 9
6) TONE:
This function is used to adjust the tone during reception.
7) MODE:
Use this key to select AM or FM. The modulation mode must correspond with
that of the person with whom you communicate.
A/ Amplitude Modulation (AM) is for communications in areas where there
are obstacles and over medium distances.
B/ Frequency Modulation (FM) is for nearby communications in flat, open
areas. It gives better quality of communication (squelch adjustment needs
more finesse).
+30dB
8) CH 19:
Channel 19 AM is automatically selected when you depress this key. This
function is activated by depressing the key.To return to the previous configu-
ration re-depress the same key.
9) 6-PIN MICROPHONE PLUG:
This plug is situated on the front panel, thereby making it easier to set the
equipment into the dashboard. See the cabling diagram on page 46.
10) PTT:
Depress this knob to transmit a message and release to listen to an incoming
communication.
A) DC-POWER TERMINAL (13,2 V)
B) ANTENNA CONNECTOR (SO-239)
C) EXTERNAL S-METER JACK (Ø 2,5 mm)
D) EXTERNAL SPEAKER JACK (8 Ω,
28
Ω, Ω, Ω, Ω, Ø 3,5 mm)