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July 2019 PAC45 Pilot Guide
Music Muting Control
The PAC45 incorporates PS Engineering
’
s trademark
“
SoftMute. The SoftMute
™
circuit will mute the music
whenever there is conversation on the radio or the intercom.
When that conversation stops, the music returns to the previ-
ous level comfortably, over a second or so.
Holding down ACK button for three (3) seconds will turn the music muting
on/off.
When in mute off mode, the intercom, radio & PTT will not mute the mu-
sic. The music muting will reset to mute on mode at each power cycle.
Any
control head will switch the muting on or off for
all
users.
Wired Satcom/Cell Phone input
The PAC45 can accommodate a wired telephone input as well as a Blue-
tooth connection. This operates the same as the Bluetooth Telephone .
Alert Audio
The PAC45 incorporates an independent alert audio system that can store
three audio messages recorded by the user, and played back when triggered
by an external source.
Once triggered, the alert audio will continue until the ACK button (front
panel or external) is pushed, or the trigger input returns to normal.
The alert inputs are ignored for the first 60 seconds after power is applied,
to reduce nuisance alerts during startup.
Alerts are provided to the pilot in fail safe, if the audio systems
’
alert power
is connected, and a stereo headset is used.
Storing Alert Audio
The PAC45 system can store three audio alerts. You must record all three
when the unit is in audio program mode. You cannot change only one at a
time. If you wish to replace just one message, we recommend you write
down all the messages before starting the procedure.
To record messages from the pilot
’
s headset:
1.
Press & Hold
“
ACK
”
AND
“
HRTF
”
until a chime is heard in the head-
set, and then release the button.
2.
COM1 will blink, to indicate the recording of ALERT #1.
3.
Start speaking message.
4.
When finished with Alert #1, press the
“
ACK
”.
