PS Engineering PMA7000B Pilot’s Guide - Manual (Page 7)

7 PMA7000B Pilot Guide R6 202-780-0001
while the four passengers will hear Entertainment #2. In normal operation,
whenever a person speaks, or if the aircraft radio becomes active, the music
will automatically mute and then will gradually return to the original listen-
ing level when the intercom or radio conversation ceases.
It is also possible to use a single input device for both entertainment inputs.
However, we suggest that a switch (DPDT) be installed between the enter-
tainment device and entertainment input #1. This will allow the pilot to
direct the music as desired.
Soft Mute and Soft Mute inhibit
The Soft Mute feature assures that the aircraft radio
transmissions will not be missed due to entertainment
playing. When there is radio reception or intercom
conversation, the music level is dropped to a low, or
background level. When the radio or intercom traffic ceases, the level
gradually returns to normal.
Mode Pilot Hears Copilot
Hears
Passen-
gers Hear
Telephone Comments
ISO A/C Radios
Pilot Side-
tone
(during
radio trans-
mission)
Entertain-
ment 1 is
Muted
Passen-
gers
Copilot
Music
Input 1
Copilot
Passen-
gers
Music 2
“Phone Booth”
mode
Pilot has exclu-
sive use of the
telephone
This mode allows the pilot to
communicate without the others
being bothered by the conversa-
tions. Copilot and passengers
can continue to communicate
and listen to music
ALL Radios
Copilot
Passen-
gers
Music 1
Radios
Pilot
Passen-
gers
Music 1
Radios
Pilot
Copilot
Passen-
gers
Music 2
All have access
to phone through
Hook Switch.
Pilot access
through TEL
switch.
All hear tele-
phone audio if off
hook.
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
Copilot
Music 1
Radios
Pilot
Music 1
Passen-
gers
Music 2
Pilot and copi-
lot don’t have
phone access
unless in TEL
mode. Passen-
gers have
phone through
Hook Switch
Passengers
hear phone
audio
This mode allows the pilot
and copilot to concentrate
on flying while the passen-
gers can communicate
amongst themselves