User's Manual

Watertight Transmitter

Rio Rancho, NM

Audio Mute

Beginning with ﬁrmware v2.6 on the US version, the

AUDIO button can be conﬁgured to work as a mute

button by turning this setting on. A quick press of the

AUDIO button will then mute the audio and a message

will appear on the LCD conﬁrming that the audio is

muted. Another quick press turns the audio back on.

• At on Enables the audio mute function

• At oFF Disables the audio mute function

During operation, the LCD will continuously display the

state of audio muting as a reminder, showing the audio

as ON or OFF.

The AUDIO button will still work to set Input Gain by

pressing and holding it in for a few seconds, however,

if the audio is muted, no sound will be heard during the

adjustment.

If the transmitter is in “standby,” the Low Frequency

Roll-off can be adjusted whether or not the audio mute

function is enabled. When the audio mute function is

enabled and the unit is turned on and transmitting,

only the audio level (input gain) can be adjusted by

holding the AUDIO button in for a few seconds.