Operation Manual

Axnes AS

Document number

Revision

Date

AX-PNG-UMAN-1270

Issue B

2018-Jun-21

Page 2-16

Squelch: The Squelch setting is only valid in direct mode, and the menu is not available in

intercom mode. Squelch is used to separate white noise from actual transmissions, by

adjusting the receive trigger level. Increasing squelch will block white noise and weak

transmitters, while reducing the squelch will let weaker transmitters through. The actual

setting of squelch is dependent on the operational environment. The setting is persistent over

a power off-on cycle.

Note: This menu is only visible when the MP30 is in direct mode.

Audio Feedback: The volume of the audio feedback can be set. Setting the volume to zero

will disable audio feedback. The setting is persistent over a power off-on cycle.

Headset: By default, the MP30 will detect the connected microphone type. It is possible to

override this and set the microphone type to be unamplified or amplified electret, custom or

low impedance dynamic mic. The setting is persistent over a power off-on cycle.

Bluetooth: Bluetooth is default disabled in the configuration. It may default be enabled in a

user configuration or by using the MP menu. If pairing to a phone for the first time, the

Bluetooth state must be set to “Visible”. This setting only lasts for 2 minutes, before reverting

to “ON” state.

Mic Equalizer: For best possible sound quality for those receiving your transmission, it is

possible to adjust the treble of your transmission. It is possible to choose either flat, soft or

sharp. When choosing the best treble setting, a headset connected directly to the intercom

should be used for evaluation of your transmission. The preferred choice can differ when

changing microphone or windsock. The setting is persistent over a power off-on cycle.

Speaker Equalizer: For best possible sound quality when receiving transmissions, it is

possible to adjust the treble of the received transmission. It is possible to choose either flat,

soft or sharp. When choosing the best treble setting, a transmission from either another

MP30 or a headset connected directly to the intercom can be used. The setting is persistent

over a power off-on cycle.

Microphone echo canceller: Some headsets are prone to vibrations from ear shell

(loudspeaker) transferring down the microphone boom to the microphone causing

echo/distortion/feedback. Microphone echo canceller will remove this unwanted earphone to

microphone coupling. The phenomena are normally only present at very high volume

settings. The setting set activation point of the echo canceller relative to headset volume

setting, e.g. setting 20 will activate echo canceller at volume setting 20 and higher. Setting 0

is echo canceller disabled, and default setting. The setting is persistent over a power off-on

cycle.

*Note: Microphone echo canceller menu is available in SW version 2.8 and later

Parameter Reset

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