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President Jackson II Manual

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32
3) MIC GAIN ~ RF GAIN ~ VOX
MIC GAIN
Adjustment of the sensitivity level of the microphone.
The normal position of this function is set to maximum clockwise.
RF GAIN
This knob is for adjusting sensitivity during reception. For long distance com-
munications RF GAIN should be set to maximum. RF GAIN can be reduced
to avoid distortion, when your correspondent is close by and when he does
not have RF POWER.
The normal setting of this function is on maximum (fully clockwise).
VOX
The VOX function allows transmitting by speaking into the original microphone
(or in the optional vox microphone) without pressing the PTT switch. In case
of the use of an optional vox mike connected to the rear panel of the radio
(VOX MIC jack), the original microphone doesn’t work.
a) VOX Mode
Press shortly the «VOX» key in order to activate the VOX function. The red
«ASC/VOX» led lights up. A new pressure on the «VOX» key switches the
function off. The «ASC/VOX» led turns off.
Note: If the ASC function is also active, the led turns up into orange.
b) VOX adjustment
Press during 1 second the «VOX» key in order to activate the function.
Vox adjustment. Three adjustments are possible: Sensitivity, Anti-Vox level/Vox
delay time. The preset adjustment is the Sensitivity adjustment. Press shortly
the «VOX» key in order to go to the following adjustment. The display shows
the type of adjustment by its first digit and its level by the second digit.
- Sensitivity «L5»: allows the adjustment of the microphone (original one or
optional vox) for an optimum transmission quality. Adjustable level from 1
(high level) to 9 (low level) by rotating the channel knob or with the UP/DN
keys of the original microphone. L corresponds to the Sensitivity (Level).
- Anti-Vox «A0»: allows disabling the transmission generated by the surrounding
noise. The level is adjustable from 0 (Off) to 9 (low level) by rotating the chan-
nel knob or with the UP/DN keys of the original microphone. A corresponds to
Anti-Vox.
- Delay Time «
5»: allows avoiding the sudden cut of the transmission by adding
a delay at the end of speaking. The level is adjustable from 1 (short delay)
to 9 (long delay) by rotating the channel selector or with the UP/DN keys of
the original microphone. corresponds to delay time.
Once the adjustments are done, press during 1 second the «VOX» key in
order to quit the Vox Adjustment Mode.
4) CLARIFIER
FINE: This function allows a frequency deviation during LSB/USB reception in
order to improve the clearness of your correspondent’s voice.
COARSE: This function allows a frequency deviation in reception.
The normal setting of this function is on the central position.
5) FM / AM / USB / LSB MODE SELECTOR
This switch allows selecting the modulation mode AM, FM, LSB or USB; Your
modulation mode has to correspond to the one of your correspondent.
Frequency Modulation /FM: for nearby communications on a flat open field.
Amplitude Modulation / AM: communication on a field with relief and ob-
stacles at middle distance (the most used).
Upper and Lower Side Band / USB-LSB: used for long distance communications
(according to the propagation conditions).
6) CHANNEL SELECTOR: knob and UP/DN keys of the micro-
phone
These switches allow increasing or decreasing a channel number. A «Beep»
sounds each time the channel changes if the Beep function is activated (see
Beep Function hereunder).
BEEP FUNCTION
Keys, changing the channel etc.
For activating the Beep: switch on the radio by pressing the UP key of the
microphone
For disabling the Beep: switch on the radio by pressing the DN key of the
microphone
SCAN FUNCTION
In order to activate the SCAN function (research of the channels) in an
increasing way, press the UP key during 2,5 seconds. The scanning automati-
cally starts 3 seconds after the end of the transmission if no key is activated.
The scanning starts again in an increasing way by using the UP key of the
microphone or in a decreasing way with the DN key of the mike.
English
… 32 …


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