TX56/56A and TX57/57A Installation Manual
5 April 2022
01776-00-01
Issue AD
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Page 60
Trig Avionics
Similarly if there is already a database on the USB stick you can either
overwrite it or add the radio data to the existing file.
To return to normal radio operation remove the USB device and switch the
radio off and back on again.
In normal radio operation the USB port is powered off.
8.18 Configuration Mode
Additional setup items can be accessed by holding down the MON button for 3
seconds. The menu options can be selected using the larger tuning knob and
the parameter value can be altered using the smaller tuning knob.
Intercom Volume
Sets the intercom volume level
Intercom Squelch
Sets the sensitivity of the intercom voice operated
squelch
Music Volume
Sets the volume level of the music input
Music Muting
Mutes the music audio when a VHF transmission is
received by the radio
Enable 8.33 kHz
(TX56/TX57 only)
Turns on or off the ability to tune 8.33 kHz stations.
If you are operating in an area with no 8.33 kHz
service, turning off the 8.33 kHz channels allows
quicker tuning of 25 kHz and 50 kHz steps. The
