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1) TALKBACK
(PTT + F)
The TALKBACK function can be activated or deactivated as follows:
a) Press and hold the PTT switch (11)
b) Short press on F key (5). Current TALKBACK level blinks 3 times
allowing you to adjust this level.
When function is activated, "TALKBACK" appears on the display.
This function allows to ear your own modulation with the CB speaker.
2) TALKBACK LEVEL
(PTT + s/t on the unit)
At step b) adjust the TALKBACK level using the s/t keys (3) on
-
the unit.
-
When the function in on and "TALKBACK" is shown on the display,
press and hold the PTT switch (11), then use the s (3a) / t (3b)
keys on the unit to select the level. 9 levels from 01 to 09.
Note: The use of the UP/DN knobs (12) on microphone are not
-
allowed to adjust TALKBACK level.
3) PA
(PTT + MODE)
Press and hold the PTT switch (11)
-
-
Short press on MODE key (6) to activate or deactivate the PA (Public
Address) mode. An external loud speaker can be connected to
your THOMAS FCC AM/FM by the PA jack plug situated on the
back panel PA.SP (D). The CB message received or transmitted
into the microphone will be directed towards the external speaker
and be amplified. Adjust the PA volume with VOL key (1).
When PA mode is activated, "PA" and the used mode (AM or FM)
blink alternatively. When PTT switch (11) is pressed, "PA" replace
the active channel on the display. Release the PTT switch (11) to
display again the active channel.
4) NOISE GATE
(PTT + VOX)
Press and hold the PTT switch (11).
-
-
Short press the VOX key (8) to activate (On) or deactivate (OF)
the NOISE GATE. "
" Is displayed when the function is active.
Noise Gate: Prevents amplification of background noise. This results
in optimized signal levels.
E) TECHNICAL CHARACTERISTICS
1) GENERAL
- Channels
- Modulation modes
- Frequency ranges
- Antenna impedance
- Power supply
- Dimensions (in mm)
- Weight
- Accessories supplied
- Filter
2) TRANSMISSION
- Frequency allowance
- Carrier power
- Transmission interference
- Audio response
- Emitted power in the adj.
channel
- Microphone sensitivity
- Maximum drain
- Modul. signal distortion
3) RECEPTION
- Maxi. sensitivity at 20
dB sinad
- Frequency response
- Adjacent chan. selectivity : 60 dB
- Maximum audio power
- Squelch sensitivity
- Frequency image
rejection rate
- Intermediate frequency
rejection rate
- Drain
11
: 40
: AM/FM
: from 26.965 MHz to 27.405 MHz
: 50 ohms
: 13.8 V / 27.6 V
: 125 (L) x 180 (H) x 45 (D)
: ~ 0.9 kg
: Electret microphone with support,
mounting cradle, screws.
: ANL (Automatic Noise Limiter) built-in
: +/- 200 Hz
: 4 W AM / 4 W FM
: inferior to 4 nW (- 54 dBm)
: 300 Hz to 3 KHz in AM/FM
: inferior to 20 µW
: 7 mV
: 1.7 A at 13.8 V / 0.85 A at 27.6 V
: 3 %
: 0.5 µV - 113 dBm AM / 0.35 µV - 116 dBm FM
: 300 Hz to 3 kHz
: 2.5 W
: minimum 0.2 µV - 120 dBm
maximum 1 mV - 47 dBm
: 70 dB
: 70 dB
: 160 ~ 500 mA (13.8 V)
100 ~ 250 mA (27.6 V)
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