Motorola DLR1020 Manuel D'utilisation page 106

Symptom
Hearing conversation from
other users that are not within
your channel
Hearing cracking noises when
nobody is talking
Audio quality not good
enough
Audio sounds garbled /
robotic
Transmit audio is low
104
English
If you hear conversations from other users that don't belong to your radio fleet,
it means your radios are set up with the same Profile ID as your neighbors. Very
likely both of you have the radios in the default Profile ID Number "0000".
Customize your PROFILE ID with a 4 digit number for all your radios. Refer to
"PROFILE ID Number" on page 36 for more information.
Sometimes users inadvertently press the radio PTT button against objects while
wearing the radio on their belts or pockets. When they do this, the radio starts
transmitting and holding the channel therefore generating strange noises. Using
earpieces reduce the likelihood of this happening. Make sure everybody in your
team is aware of proper operation of the radios.
Radio settings might not be matching up correctly. Double check to make sure
they are identical in all radios. Go into Advanced Configuration Mode and adjust
the microphone sensitivity gain (MIC Gain).
Digital technology gives you the advantage to experience clear audio up to the
edge of the range. However, when maximum transmission range has been
reached, audio may sound garbled just before the transmission is lost
completely. Make sure you are within transmission range to avoid this problem.
Hold the radio vertically 1 to 2 inches from mouth when talking. For accessory,
hold the accessory microphone 2 to 3 inches from mouth when talking.
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