PRESIDENT ADAMS FCC, Руководство пользователя

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10
2) TALKBACK LEVEL
( PTT +
s
/
t
)
- At step
b),
when the function is
on
and when the level digits are
blinking on the display, adjust the TALKBACK level using the
s
/
t
keys ( 2 ). 9 levels from
01
to
09
.
F) TECHNICAL CHARACTERISTICS
1) GENERAL
- Channels : 40
- Modulation modes : AM
- Frequency ranges : from 26.965 MHz to 27.405 MHz
- Antenna impedance : 50 ohms
- Power supply : 13.8 V
- Dimensions : 4.92 (W) x 5.94 (D) x 1.77 (H) inches
125 (W) x 151 (D) x 45 (H) mm
- Weight : ~ 1.98 lbs / 0.9 kg
- Accessories supplied : Electret microphone with support,
mounting cradle, screws
- Filter : ANL (Automatic Noise Limiter) built-in
2) TRANSMISSION
- Frequency allowance : +/- 200 Hz
- Carrier power : 4 W RMS
- Transmission interference : inferior to - 60 dBc
- Audio response : 300 Hz to 3 KHz
- Emitted power in the adj.
channel : inferior to 20 µW
- Microphone sensitivity : 3 mV
- Maximum drain : 2 A
- Modul. signal distortion : 1.8 %
3) RECEPTION
- Maxi. sensitivity at 20
dB sinad : 0.6 µV - 111 dBm
- Frequency response : 300 Hz to 3 kHz
- Adjacent chan. 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
rejection rate : 70 dB
- Drain : 160 ~ 500 mA
G) TROUBLE SHOOTING
1) YOUR CB 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.
2) YOUR CB RADIO WILL NOT RECEIVE OR RECEPTION IS
POOR
- Check that the squelch level is properly adjusted.
- Check that the volume is set to a comfortable listening level.
- Check that the antenna is correctly connected and that the SWR
is properly adjusted.
3) YOUR CB 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 ( 8 ) 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 commu-
nication with someone, it is common practice to choose another
available channel so as not to block the calling channel.
English