PRESIDENT ASC JFK II Manual Del Usuario página 32

5) CHANNEL SELECTOR: rotary knob and UP/DN keys of the
microphone
These switches allow increasing or decreasing a channel. A «beep» sounds
each time the channel changes if the Beep function is activated. See beep
function page 34.
6) DISPLAY
It shows all functions:
The BARGRAPH shows the reception level, the output power level or SWR
level.
7) SWR ~ M5
SWR
Allows changing the function of the meter. By pressing you alternate between
SWR and S/RF.
SWR: shows the SWR value on the display (scale from 1 to 3)
S/RF: shows the output and reception power on the S/RF-meter.
M5
See§14 MEM.
8) CH 19/9 ~ FRQ ~ M4
CH 19/9
(short press)
Channels 19 and 9 are automatically selected by pressing this key. One press
activates channel 19 and «EMG» appears on the display, a second press
activates channel 9, «EMG» remains on the display. A new press returns to
the previous channel and «EMG» disappears from the display.
See the table with the European standards for the emergency channel.
FRQ
(long press)
Shows the frequency in transmission and reception. In order to activate or
disable the function, press during one second on this key. When the func-
tion is active «FRQ.» appears on the display and the channel indication is
replaced by the frequency indication.
M4
See § 14 MEM.
9) MODE SELECTOR AM/FM ~ PA ~ M1
AM/FM (short press)
This switch allows selecting the AM or FM modulation. Your modulation mode
has to correspond to the one of your correspondent.
Amplitude modulation/AM: is for communications in areas where there are
obstacles and over medium distances.
Frequency modulation/FM: for nearby communications in flat, open field.
PA (Public Address)
(long press)
An external sound loudspeaker can be connected on the PRESIDENT JFK II ASC
by a jack located on the rear panel PA.SP (D). A long press allows switching in
Public Address mode. «PA» appears on the display; the message sent in the
microphone will be transferred to the external loudspeaker and amplified.
Keep the microphone at a sufficient distance from this loudspeaker in order
to avoid the Larsen effect.
The PA volume is adjustable by the MIC GAIN button. Visual display of the
level on the bargraph.
M1
See § 14 MEM.
10) ROGER ~ M2
ROGER
(short press)
The icon « » appears on the display when the function is active. The Roger
Beep sounds when the PTT switch of the microphone is released in order to
let your correspondent speak. Historically as CB is a «simplex» communica-
tion mode, it is not possible to speak and to listen at the same time (as it is
the case with a telephone). Once someone had finished talking, he said
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