6 reception and transmission – MIDLAND G12 User Manual
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4
English
Channel
Frequency (MHz)
CTCSS/DCS
446.00625
NO
2
446.01875
NO
3
446.03125
NO
4
446.04375
NO
5
446.05625
NO
6
446.06875
NO
7
446.08125
NO
8
446.09375
NO
9
446.00625
CTCSS Nr. 16
0
446.01875
CTCSS Nr. 16
446.03125
CTCSS Nr. 16
2
446.04375
CTCSS Nr. 16
3
446.05625
CTCSS Nr. 16
4
446.06875
CTCSS Nr. 16
5
446.08125
CTCSS Nr. 16
6
446.09375
CTCSS Nr. 16
If you are communicating with a device of a different manufacturer
you are advised to use one of the first eight channels so as to
guarantee maximum compatibility. Choose obviously the channel
that seems the less busy.
However, if the other party is also equipped with
MIDLAND G2 (or
another device equipped with CTCSS tones), you can choose any
channel. Should all of the eight PMR446 frequencies be busy in your
area then you can choose a channel (the least busy) from 9 to 16 so
that the CTCSS only transmits communication from other members
of your group. For further details on CTCSS consult par. 5.7.
5.6 Reception and transmission
During transmission and reception, ensure the antenna is as vertical
as possible and free from obstacles in the direction of your party to
get the best radio signal.
2
Reception and transmission mode described below is the
simplest and is the so-called “open traffic”. It is however possible
to operate, in a different way. Consult par. 5.7.
5.6.a Waiting for calls
When the
PTT is not pressed, the radio is in reception mode and it
is ready to receive incoming communication on the currently tuned
channel (stand-by).
When no signals are received, the circuit called squelch mutes the
audio of your device in order to cancel the annoying background
noise. In these circumstances, the status LED will flash every 4/5
seconds.
If you are not receiving communications and have not activated any
commands for at least 10 seconds, the
icon will flash on the
display, indicating that the power saver function has been automatically
activated and the status LED will flash every four seconds.
5.6.b Reception
As soon as you receive a signal the squelch function which silences
the audio in the absence of signals will be automatically disabled
allowing you to hear the message received. The status LED flashes
more frequently (once about every second) and on the display the
icon shows the strength of the signal (the number of bars is
directly proportional to the strength of the signal).
2
If reception is broken because of weak signal try to use the monitor
function as described in par. 5.8.