PRESIDENT Bill ASC, Руководство пользователя

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29
7. If no key is pressed, the unit exits the
MENU
mode after
10 seconds.
disappears on the display.
The default microphone type is
EL
(electret).
Note: On power up, in order to inform the user, the pro-
grammed microphone type is displayed for 2 seconds
(see §
ON/OFF
page 23) .
6) RESET
Allows to reset all the user’s parameters and return to
default values.
1. Enter into the MENU mode (see § MENU MODE , point 1
page 26)
2 . Use
s
/
t
( 3 ) on the unit or UP / DN ( 3 ) on the microphone
to select the RESET menu.
3.
Press the
F
(
5
).
AL
blinks.
4.
Press again the
F
(
5
) key to reset all the parameters and
exit the MENU mode.
5. If no key is pressed, the unit exits the
MENU
mode after
10 seconds.
disappears on the display.
A) DC-POWER TERMINAL (13,2 V)
B) ANTENNA CONNECTOR (SO-239)
C) EXTERNAL SPEAKER JACK (8
Ω
, Ø 3,5 mm)
E) 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) : 102 (L) x 100 (H) x 25 (D)
- Weight : ± 0.320 kg
- Accessories supplied : Electret microphone with
support, mounting cradle,
quick fixation clip, screws.
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 : 7 mV
- Maximum drain : 1.7 A
- Modul. signal distortion : 2 %
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
- Adjacent chan. selectivity : 60 dB
- Maximum audio power : 2.5 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 : 180 ~ 500 mA
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