If you have selected separate Mic Gains, they must all be adjusted. It is acceptable to use
different makes of headset for each Intercom position but the Mic Gains must be adjusted
correctly. In that case Headphone levels may need to be changed using the Headphone
volume controls on each Headset. As described above, an indication that Mic Gain(s) has not
been setup correctly is that the sidetone level (on transmit) is very different from the levels
from the receiver and over the Intercom – i.e. the microphone sensitivity seems to change
when going from Intercom/receive to transmit.
After setting Microphone gain everything else can be adjusted, starting with
intercom/headphone volume and continuing through the likes of music and auxiliary input
levels.
All methods of adjustment and possible configuration settings are explained in the Quick
Reference Manual supplied with the radio. Also, the full Manual is available at
www.mglavionics.co.za.
INTERFERENCE
The installation may be subject to interference.
Interference can only ‘get into’ the Radio via the antenna or the wiring. To find out which it is,
disconnect the antenna from the back of the Radio. If the interference disappears then it is
coming in through the antenna and will have to be tackled at source. Of course, if it’s only
‘minor’, just closing the Squelch a couple of tics will block it out without reducing receiver
sensitivity too much. If it is coming through the wiring then revisit the Wiring discussion above.
MGL Avionics
2012/02/07
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