PS Engineering PMA8000B Pilot’s Guide - Manual (Page 12)

Page 12 202-890-0202 PMA8000B Pilot Guide Rev. 6
The “Monitor” function mutes the secondary communication radio audio
when the primary radio (the one selected to transmission) is active.
“Music” function controls how music is distributed in your airplane.
There are two music sources available to the PMA8000B, Music 1 input can
be either on the front jack, or the Music 1 input at the rear connector (Pins 23
and 24, J2). Music 2 is wired into the rear connector, only (Pins 26 and 27,
J2)
The volume of the function selection annunciations and recorder playback
can be adjusted through a hole on the top of the unit marked “ANN VOL.”
“Intercom” Function
Intercom function controls the distribution of aircraft radio and pas-
senger intercom. In the “Standard intercom function” mode, aircraft
radios are distributed to all, when the intercom is in the ALL mode.
In CREW mode, only the pilot and copilot positions will hear air-
craft radios.
When in “Alternate Intercom Function,” the passengers will NEVER hear
aircraft radios, even in the ALL mode. In addition, when in the ALL inter-
com mode, passengers will be able to converse with the crew, unless the
aircraft radio becomes active, when the intercom audio from the passengers
to the pilot and copilot is stopped, so the crew can focus on the radio. Pas-
sengers will always be able to talk to each other.
To activate this function hold the TEL button until the audio announces
“Alternate Intercom Function,” when activated, and “Standard Intercom
Function” when deactivated.” The alternate intercom mode is announced at
power up, unless the power on announcement has been defeated.
“Monitor” Function
This function turns the Monitor Function on and off.
When the Monitor is on, the audio from the COM that is selected
for reception only (only top LED illuminated) will be muted when
the radio that is selected to transmit becomes active.
This function is useful if you are copying weather from AWOS on
COM 2, but have clearance delivery tuned in on COM 1. With the monitor
active, the AWOS audio will be silenced when clearance delivery starts to
speak.
To activate the Monitor Function press and hold AUX. The audio will an-
nounce “Monitor on,” when activated, and “Monitor off” when deactivated
NOTE: This mode is NOT remembered through power cycles, to
prevent inadvertent blocking of desired audio on the next trip.
“Music” Distribution Function
The Music Function has three modes. To cycle Music distribution
modes,
press and hold Mute button until the annunciation starts.