Bottom View - AOR ARD9900 Instruction Manual

x. Output level setting (JP 10)
Jumper setting
1 - 2
2 - 3
If the microphone output level is too low to drive your radio equipment,
place the jumper in the 2-3 position.
(Refer to: Radio Input Level setting on page13 for details.)

Bottom View

y. Microphone output (Radio Input) level
(Refer to setting level adjustment on page 13 for details)
Normal level (default) (LOW)
High level (HIGH)

y