PS Engineering PMA6000M-C Pilot’s Guide - Manual (Page 6)

6 202-066-0002 Rev. 3, August 2007
copilot volume control adjusts the loudness of the intercom
and music in the copilot headset only. The passenger volume is
factory set at a comfortable level. This is a service adjustment
that can be accessed by the avionics technician. Many general
aviation headsets have a built-in volume control, so volume
can be reduced “locally.”
Adjusting the VOX-Squelch control
The PMA6000 provides adjustable VOX squelch controls for
the pilot and copilot (the copilot's VOX control also adjusts the
passengers VOX squelch). Since the number of microphones
open at any one time is reduced, the amount of background
noise is diminished. This also allows the use of dissimilar
headsets with the same system. The user can adjust the trip
level of the VOX to fit the individual's voice and mic, which
helps eliminate the frustration of clipping the first syllables.
With the engine running, set the VOX control knob by slowly
Mode Pilot Hears Copilot
Hears
Passenger
Hears Comments
ISO A/C Radio
Pilot Sidetone
(during radio
transmission)
Copilot
Passengers
Music 1 Copilot
Passengers
Music 1 This mode allows the pilot to
communicate with the air
traffic control without the
copilot or passengers both-
ered by the conversations.
Copilot and passengers can
continue to talk and listen to
music
All Radios
Sidetone
Pilot
Copilot
Passengers
Music 1
Radios
Sidetone
Pilot
Copilot
Passengers
Music 1
Radios
Sidetone
Pilot
Copilot
Passengers
Music 1
This mode allows all on
board to hear radio recep-
tion as well as communicate
on the intercom. Music and
intercom is muted during
intercom and radio commu-
nications
Crew Radios
Sidetone
Pilot
Copilot
Music 1
Radios
Sidetone
Copilot
Pilot
Music 1
Passengers
Music 2 A second music source is
automatically enabled for the
passengers
Intercom Mode Table