Muting Sounds; Adjusting Squelch Level - Yaesu FTM-400DR Operating Manual

Other Settings

Muting Sounds

If the sounds from A Band and B Band overlap and become difficult to hear during Dual
frequency reception, the sound for bands other than operating band can be muted.
1
Press and hold M over 1 second.
The Setup Menu appears.
2
Tap [TX/RX].
3
Tap [AUDIO].
4
Tap [2 SUB BAND MUTE] and select Mute ON.
Mute is switched [ON] and [OFF] each time [2 SUB
BAND MUTE] is tapped.
• Mute can also be selected by pressing the O.
Reference
5
Press and hold M over 1 second.
The Mute ON is set and the screen returns to the
previous one.
Reference
Tap [MUTE] displayed on the bottom of the screen to switch the
Mute Function to OFF.
Mute is switched [ON] and [OFF] each time [MUTE] is tapped.

Adjusting Squelch Level

You can mute the raspy noise heard when no signal is being received. The squelch level
can be adjusted separately for two broadcasts (NFM and AM) received on the A-band
and B-band. When the squelch level is increased, the noise is more liable to disappear
but, in some cases, it becomes difficult to receive weak signals. Adjust the squelch level
as required.
1
Tap [SQL].
2
Adjust Squelch level with O.
Adjust the Squelch level by rotating the upper O
for A Band, and lower O for B Band.
Reference • Squelch level can be adjusted from 0 to 8.
• Factory Setting: Level 1
3
Tap [SQL].
The Squelch level is set and the screen returns to the
previous one.
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FCC ID: K6620345X40
IC: 511B-20345X40