Controls and operation
- 3 -
English
2.
SCAN Key
By pressing the SCAN key, the SCAN (automatic scanning of busy channels) function is enabled. To enable the
SCAN function, first turn the SQUELCH control (10) clockwise, until the background noise is cut. Then press the
SCAN key, radio will automatically start scanning all channels continuously and the SCAN icon (O) will appear on the
LCD. Auto-scan stops if a signal is detected on a channel, in order to let the user listen to the incoming signal and will
start scanning again when no signal is detected on that channel. It is possible to remain on that channel by pressing
the PTT key (17) within 5 seconds, otherwise radio will start scanning again. Auto-scan may be also re-started at any
time by pressing again the SCAN key. To exit the SCAN mode, shortly press the PTT key (17).
3.
ESP (Electronic Speech Processor) Key
The ESP (Electronic Speech Processor) is a unique feature available in some INTEK two-way CB radios. ESP means
Electronic Speech Processor, in other words electronic modulation processor. This audio processor is microprocessor
controlled and it is also called COMPANDER (Compressor-Expander). It works as a modulation compressor in transmit
mode and as a modulation expander in receive m ode. The ESP allows to obtain a stronger, clear and clean audio signal
and it is a great help in noisy areas and in case of weak signals or in long distance communication. The efficiency of
ESP is even greater when both stations use this device. The 2nd generation ESP allows to enable only the TX
compressor, only the RX expander or both systems.
To enable or disable the ESP functions, press the ESP key (3), as follows :
1)
Press the key once to enable the TX modulation compressor. The
ESP C
(L) icon will appear on the LCD.
2)
Press the key again to enable the RX modulation expander. The
ESP E
(L) icon will appear on the LCD.
3)
Press the key again to enable both the TX modulation compressor and the RX modulation expander.
The
ESP C E
(L) icon will appear on the LCD.
4)
Press the key once again to disable all systems.
4.
TX/RX Indicator
This green-red dual colour LED indicator lights up in green colour when radio is in receive mode and in red colour
when radio is in transmit mode.
5.
LCD Display
Large size LCD display with an orange colour backlighting system, for best readability. The LCD display shows all the
enabled functions as well as other information programmable by the user, such as the programmed band ID code. It
also includes a digital 10-bar S/RF Meter to monitor the strength/power of the received and transmitted signals.
Modulation without ESP
Modulation with ESP
100%
0%
100%
ESP performance
of the modulation
in RX and TX modes
Содержание M-795
Страница 25: ... 23 Italiano Note ...
Страница 27: ...ESP Compander Diagram II ...
Страница 28: ...PCB Main Board CPU Board III ...
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Страница 30: ...Diagram V ...
Страница 31: ...Diagram VI ...
Страница 32: ...Block Diagram VII ...
Страница 33: ...Block Diagram VIII ...
Страница 34: ...Notes ...
Страница 35: ...Notes ...
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