PRESIDENT HENRY ASC Classic 12/24 V Manual Del Usuario página 29

3) RF GAIN
This knob is for adjusting sensitivity during reception. For long distance communications
RF GAIN should be set to maximum. RF GAIN can be reduced to avoid distortion,
when your correspondent is close by and who does not have the RF POWER function.
The normal setting of this knob is on maximum (fully clockwise).
4) CHANNEL SELECTOR ROTARY KNOB
Turning this knob (4) allows you to choose a channel (1 ~ 80) for transmitting and
receiving.
5) DISPLAY
The display shows all the different functions. The bargraph shows the level of reception
and the level of power emitted. The TX LED lights up when the set goes into transmission
mode.
6) F - FREQUENCY BAND SELECTION
The frequency bands must be chosen according to the country where you are going
to operate. Do not use another configuration. Some countries require user's licence.
See table page 50
a) Radio set switched OFF.
b) Slide the F/OFF (6) switch on F position.
c) Switch ON the radio.
d) Choose the request configuration with the channel rotary switch (see the chart p.
49).
e) Slide the F/OFF switch on OFF position.
f) And then, for final confirmation of the choice before operating in the configuration,
switch OFF then ON the radio set.
7) MODE
Use this key to select AM or FM. The modulation mode must correspond with that of
the person with whom you communicate.
AM/ Amplitude Modulation is for communications in areas where there are obstacles
and over medium distances.
FM/ Frequency Modulation is for nearby communications in flat, open areas. It gives
better quality of communication (squelch adjustment needs more finesse).
8) CH 19
Channel 19 is automatically selected when you activate this switch (8). To activate
this function, move the switch to CH19 position, and to return to the previous channel
move the same switch to OFF position. See table page 49 for modulation mode.
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 48.
10) PTT (push to talk)
Depress the PTT (10) pedal to transmit a message and release to listen to an incoming
communication.
TOT (Time Out Timer)
If the PTT key (10) is pressed for more than 5 minutes, the transmission ends until the
PTT key (10) is released.
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