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About the foreground and background radio
The TM9456/TM9356 is installed and
programmed as two radios, that can be accessed
via the user-interface. In such a dual-radio
system, one radio is always at the foreground,
and one at the background. If monitoring both
radios (dual receive), the speaker volume of the
background radio is quieter than the speaker
volume of the foreground radio.
To access features on the background radio (such
as change the channel), you must first change
that radio to the foreground. See "Switching
between radios" on
The foreground radio is
either:
■
■
The background radio is the radio not showing in
the display, or the radio showing in smaller text.
the radio currently showing
in the display, or
the radio showing in larger
text
page
26.
R1:Channel 12
Menu
R1:Channel 12
R2:Channel 3
Menu
25
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