GME Electrophone TX4200 Series, Инструкция по эксплуатации

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The TX4200 contains a number of built-in
advanced signalling features, many of which
are normally only available in expensive
commercial communications equipment.
The following features are included in the
TX4200 at no extra cost.
•
Built-in sequential tone signalling system.
•
100% compatible with 40ms CCIR 5 tone
systems.
•
Factory programmed receiver Selcall
Identification number (Selcall Ident).
•
User programmable 4 digit 'Call To' Ident
with dealer option to make 5 digit.
•
Display up to 5 digits of callers Selcall Ident.
•
Audible warning of incoming call.
•
Quiet mode programming on user selected
channels.
•
Mixed scanning of both quiet and open
channels.
•
3 memories for user storage of frequently
called Selcall Idents.
•
Base to Base, Base to Mobile, Mobile to
Mobile, and Mobile to Base calling.
•
External alarm interface socket.
•
Remote Paging facility.
While this list of features may seem daunting to
those who are unfamiliar with them, this section
has been written to explain these features and
show you how to use them to increase your
communications efficiency. Remember, your
TX4200 already has these features built-in so
why not use them to your advantage.
Selective Calling (General)
Selective calling (Selcall) is a multiple frequency
sequential tone signalling system designed to
provide quiet transceiver operation on a
normally busy shared channel.
In it's basic form, the Selcall signal consists of 5
short tones transmitted in a sequence. There
are 10 different tones to choose from (numbered
from 0 to 9). By combining any 5 of these tones
in a sequence, a code is created. The code can
be identified by the numbers of the tones.
e.g. Combining tones 1, 4, 6, 2 and 3 in that
order would create the code 14623.
A receiver which is designed to use Selective
calling is programmed with it's own unique
code. Whenever the receiver hears a 5 tone
Selcall transmission, it compares the incoming
code with it's own code. If the two codes match,
the radio knows it is being called and sounds an
alarm to let the operator know.
In addition, the receiver can be programmed to
listen to a busy channel but not allow any sound
to reach the speaker unless it receives it's
Selcall code. In this way the radio can monitor a
busy channel without disturbing you, but still let
you know if you are being called.
Your radio also allows you to transmit these
codes in any sequence you desire so that you
can call others who are also using a Selcall
system.
Tx4200 Selcall Identification Numbe
r
Your TX4200 is factory programmed with it's
own Selcall Identification number (Selcall Ident).
This Ident identifies your radio from others in
your area. You will need to make your Selcall
Ident known to anyone who may need to call
you using Selcall.
Your Selcall Ident
The Selcall Ident for your radio is printed on the
label affixed to your radio's rear panel. You can
also recall your Selcall Ident directly from the
radio and display it on the LCD as follows:
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ADVANCED FEATURES