PRESIDENT J.F.K. ASC, Руководство пользователя

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29
English
15) CH 9/19:
Channel 9/19 is automatically selected.
16) ANL/NB:
Noise Blanker/ Automatic Noise Limiter. These filters allow the reduction of
back ground noise, and some reception interferences.
17) S/RF - SWR -CAL:
In the S/RF position, the meter swings proportionally to the strengh of the
received signal. When transmitting, the meter indicates relative RF output
power. In the "CAL" position, the SWR meter can be calibrated by adjusting
the "SWR CAL" control. When in the SWR position, the standing wave ratio is
measured.
18) 6-PIN MICROPHONE PLUG:
This plug is situated on the front panel, thereby making it easier to set the
equipment into the dashboard. See the cabling diagram on page 46.
19) PTT (push to talk):
Depress this knob to transmit a message and release to listen to an incoming
communication.
A) DC-POWER TERMINAL (13,2 V)
B) ANTENNA CONNECTOR (SO-239)
C) EXTERNAL S-METER JACK (Ø 2,5 mm)
D) EXTERNAL SPEAKER JACK (8
Ω, Ω, Ω, Ω, Ω,
Ø 3,5 mm)
C) 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 (in mm) : 174 (L) x 211 (H) x 52 (D)
- Weight : 1.4 kg
- Accessories supplied : Microphone with support,
mounting cradle, screws.
2) TRANSMISSION:
- Frequency allowance : +/- 300 Hz
- Carrier power : 4 watts FM CW
4 watts AM PEP
- Transmission interference : inferior to 4 nW (- 54 dBm)
- Audio response : 300 Hz à 3 KHz in AM/FM
- Emitted power in the adj. channel : inferior to 20 µW
- Microphone sensitivity : 1,0 mV
- Drain : 1,7 A (with modulation)
- Modulated signal distortion : 1,8 %
3) RECEPTION:
- Maxi. sensitivity at 20 dB sinad : 0.5 µV - 113 dBm (AM/FM)
- Frequency response : 300 Hz à 3 kHz in AM/FM
- Adjacent channel selectivity : 60 dB
- Maximum audio power : 5 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 : 500 mA nominal
800 mA maximum