PS Engineering PMA7000M-S Pilot’s Guide - Manual (Page 3)

10 PMA7000-Series Pilot Guide
marker mute function was added. Pressing the marker mode select down (to
“T/M”) will cause the marker audio to mute for that beacon. The next beacon
received will re-activate the audio.
1.3 Internal Recorder System (Optional)
The Intercom Recording System (referred to here as the IRS) is a digital re-
cording system allowing automatic storage and playback of aircraft radio traf-
fic.
Operating as a continuous loop recorder, (first message received will be the
last heard), the recorder has one minute of recording time or up to 16 mes-
sages. With its own built in VOX circuit, there are no buttons to press to start
recording. The system automatically begins to record the instant the radio be-
comes active. Only aircraft radio audio in pilots headset is recorded and only
the pilot will hear the playback audio.
1.3.1 Operation
Recording is automatic; there is no action required by the pilot. To play back
the last recorded message, simply press the momentary switch associated with
the IRS. Each additional press of the button will play the preceding recorded
message. You must wait for the message to finish playing before accessing the
prior message.
To cancel the playback, press and hold the playback button for two seconds.
The next time the button is pressed, the next earlier message will be heard.
1.4 Audio Messaging system (Option 1, Option 2,
only)
When this option is installed, the PMS7000M-S contains six stored messages.
An outside annunciator, such as an Electronics International engine gage sys-
tem triggers these messages. When there is an announcement, it will be re-
peated every two seconds until the remote- mounted ACK button is pushed.
This stops the played annunciation, until the next announcement is required
(the next falling edge).
1.4.1 Concurrent Messages
When a recorded message or audio annunciation is playing, the other audio
source is momentarily inhibited. For instance, if an IRS message is being
played, the audio annunciation will not begin until the IRS message is fin-
ished. Conversely, the IRS recording cannot be played as long as there is an
aural alert being played. There is no recording made if playing a recording or
annunciation.
3 PMA7000-Series Pilot Guide
1.3 Microphone Selector (All models)
When the mic selector switch is in the Com 1
position, both pilot and copilot will be con-
nected to the Com l transceiver. Only the per-
son who presses their Push To Talk (PTT),
will be heard over the aircraft radio. Turning
the rotary switch to the C
OM 2 position will
place pilot and copilot on Com 2.
The PMA7000M-S gives priority to the pilot’s
PTT. If the copilot it transmitting, and the
pilot presses his PTT, the pilot’s microphone will be heard over the selected
com transmitter.
Turning the mic selector fully counterclockwise places the pilot and copilot on
Com 3. Com 3 receive audio is automatically placed in the headset (and
speaker if selected). Com 1 and/or Com 2 receiver audio can be selected to
monitor those transceivers.
The PMA7000M-S-Series has an automatic selector mode. Audio from the
selected transceiver is automatically heard in the headsets and speaker. You
can check this function by switching from C
OM 1 to C OM 2 and watch the se-
lected audio light on the selector change from COM 1 to COM 2. This ensures
the pilot will always hear the audio from the transceiver he is transmitting on.
When switching the mic selector rotary switch from C OM 1 to C OM 2, while
C OM 2 audio had been selected, Com 1 audio will continue to be heard. This
eliminates the pilot having to switch Com 1 audio back on, if desired.
When switching from C OM 1 to C OM 2 while Com 2 has NOT been selected,
Com 1 audio will be switched off. In essence, switching the mic selector will
not effect the selection of Com audio.
The “TEL” position, fully CW on the mic selector switch, is the pilot’s “hook”
switch, when the system is interfaced to an appropriate approved wireless tele-
communication system, such as the AirCell system. Placing the mic selector
in TEL placed the pilot microphone and headphones on the cellphone. The
pilot PTT will switch the pilot mic to the COM 1, and allow continued aircraft
communications as well.
The copilot will also be able to transmit on COM 1 with his PTT as well.
NOTE: Placing the mic selector switch in the TEL position will disable pilot
and copilot intercom, as the intercom circuit is transferred to the telephone
use. In crew or ISO mode, placing the switch in TEL mode removes the pas-
sengers access to the telephone.