PRESIDENT Walker 2, Owner'S Manual

Page: 40 / 64

40
2) TALKBACK LEVEL
This function allows to adjust the volume level of the
TALKBACK
.
1.
Activate the
TALKBACK
function.
2.
Press and hold the
PTT
switch (
17
) then turn the rotary
PUSH
knob (
6
) to
increase
(clockwise) /
decrease
(counterclockwise) the volume level of
the
TALKBACK
.
3.
Release the
PTT
switch (
17
).
F) TECHNICAL CHARACTERISTICS
1) GENERAL
- Channels : 40
- Modulation modes : AM / FM
- Frequency ranges : from 26.965 MHz to 27.405 MHz
- Antenna impedance : 50 ohms
- Power supply : 13.2 V
- Dimensions : 170 (W) x 160 (D) x 52 (H) mm
- Weight : ± 1.1 kg
- Accessories supplied : 1 microphone electret UP/DOWN with
support, mounting cradle, screws and
fused power cord.
2) TRANSMISSION
- Frequency allowance : +/- 200 Hz
- Carrier power : 4 W AM / 4 W FM
- Transmission interference : inferior to 4 nW (- 54 dBm)
- Audio response : 300 Hz to 3 KHz in AM/FM
- Emitted power in the adj. channel : inferior to 20 μW
- Microphone sensitivity : 3.0 mV
- Drain : < 2 A max. (with modulation)
- Modulated signal distortion : 1,8 %
3) RECEPTION
- Maxi. sensitivity at 20 dB sinad : 0.5 μV - 113 dBm (AM)
0.35 μV - 116 dBm (FM)
- Frequency response : 300 Hz to 3 kHz in AM/FM
- Adjacent channel selectivity : 60 dB
- Maximum audio power : 3 W
- Squelch sensitivity : minimum 0.2 μV - 120 dBm
maximum 1 mV - 47 dBm
- Frequency image rejection rate : 60 dB
- Intermediate frequency rej. rate : 70 dB
- Drain : 180 ~ 500 mA maximum
G) TROUBLE SHOOTING
1) YOUR RADIO WILL NOT TRANSMIT OR YOUR TRANSMISSION
IS OF POOR QUALITY
- Check that the antenna is correctly connected and that the SWR is properly
adjusted.
- Check that the microphone is properly plugged in.
- Check that the RF POWER value is set on maximum. (See § RF POWER page
34) .
- Check that the MIC GAIN value is set on maximum. (See § MIC GAIN page
34) .
2) YOUR RADIO WILL NOT RECEIVE OR RECEPTION IS POOR
- Check that the squelch level is properly adjusted.
- Check that the volume ( 1 ) is set to a comfortable listening level.
- Check that the antenna is correctly connected and that the SWR is properly
adjusted.
- Check that you are using the same modulation mode as your correspond-
ent.
- Check that the RF GAIN level is set on maximum. (See § RF GAIN page
34) .
3) YOUR RADIO WILL NOT LIGHT UP
- Check the power supply.
- Check the connection wiring.
- Check the fuse.
H) HOW TO TRANSMIT OR RECEIVE A MESSAGE ?
Now that you have read the manual, make sure that your CB Radio is ready
for use (i.e. check that your antenna is connected).
Press the «push-to-talk» switch ( 17 ) and announce your message «Attention
stations, transmission testing» which will allow you to check the clearness
and the power of your signal. Release the switch and wait for a reply. You
should receive a reply like, «Strong and clear».
If you use a calling channel (19) and you have established communication
with someone, it is common practice to choose another available channel
so as not to block the calling channel.
English