PS Engineering PMA8000B X User Manual
9800 Martel Road
Lenoir City, TN 37772
www.ps-engineering.com
PMA8000B
PMA8000B
Audio Selector Panel
Marker Beacon Receiver
High-fidelity Stereo Intercom System
Pilot’s Guide
Pilot’s Guide
and
and
Operation Manual
Operation Manual
202-890-0202 Revision 6 June 2008
Covered under one or more of the following Patent No.
4,941,187, 5,903,227, 6,160,496, 6,493,450
FAA-Approved: TSO C50c, C35d
June 2008 PMA8000B Pilot Guide
202-890-0202 Page 1
This pilot guide provides detailed operating instructions for the PS
Engineering PMA8000B, Audio Selector Panel/Intercom Systems.
Please read it carefully before using the equipment so that you can
take full advantage of its capabilities.
This publication covers the basic operating areas of the PMA8000B
systems. They are Com Transceiver Selection, Audio Selector, Intercom, and Marker Beacon Receiver, utility jack and the configuration
buttons.
PMA8000B controls
Power Switch (1) (EMG-Fail Safe Operation)
Unit power is turned on and off by pushing the volume knob. In the
OFF or "EMG" position, the pilot headset is connected directly to
Com 1 as well as unswitched input #1. This allows communication
capability regardless of unit condition. Any time power is removed or
turned
OFF, the audio selector will revert to fail-safe mode.
The power switch controls all audio selector panel functions, intercom and marker beacon receiver. All pushbutton selections will be
remembered and return to the last state when turned on.
Communications Transmit (XMT) Selection (2)
There are two pushbuttons associated with the transmitter selection.
The two lower buttons (# 2) control which transceiver is selected for
transmit. The top row of pushbuttons (# 3) allows selection of the receiver audio. Push the lower button to select the desired COM transmitter.
Page 2 202-890-0202 PMA8000B Pilot Guide Rev. 6
The PMA8000B-Series has an automatic selector system. Audio from
the selected transceiver is automatically heard in the headsets and
speaker (if selected). You can check this function by switching from
C
OM 1 transmitter to Com 2 transmitter by pressing the COM 2 trans-
mitter selector pushbutton. Note that the associated Com 2 receive
pushbutton indicator light that is located immediately above the Com
2 transmitter pushbutton turns green. This guarantees that the pilot
will always hear the audio from the transceiver selected for transmit.
The PMA8000B “remembers” the receiver selection, so that when
switching transmitters from C
previously selected, C
OM 1 audio will continue to be heard. This
OM 1 to COM 2, if COM 2 audio was
eliminates the pilot having to switch Com 1 audio back on, after
changing transmitters.
When switching from C
ously selected, C
OM 1 audio will be switched off. In essence, switch-
OM 1 to COM 2 while Com 2 was not previ-
ing the mic selector will not override prior selection of COM receiver
audio.
In normal (not split) modes, the PMA8000B gives priority to the pilot’s radio Push-To-Talk (PTT). If the copilot it transmitting, and the
pilot presses his PTT, the pilot’s microphone will be heard over the
selected com transmitter.
In TEL mode, the pilot microphone and headphones are connected to
the cell phone. The pilot PTT will switch the pilot mic to the selected
com transceiver, and allow continued aircraft communications to continue. (See Page 4—TEL—for more details)
The copilot will also be able to transmit on the other selected radio
with his PTT as well.
Split Mode
The split mode can be activated at any time
by pressing the C
buttons at the same time. This places the
pilot on C
Pilot on C
OM 1 and the copilot on COM 2.
OM 2 and Copilot on COM 1 is not
possible.
NOTE: Due to the nature of VHF communications signals, and
the size constraints in general aviation aircraft, it is probable
that there will be some bleed-over in the Split mode, particularly
on adjacent frequencies. PS Engineering makes no warranty
about the suitability of Split Mode in all aircraft conditions.
June 2008 PMA8000B Pilot Guide
OM 1 and COM 2 XMT
202-890-0202 Page 3
Note: Split Mode does not turn off Nav, ADF, or Aux selected audio to
pilot. However, the copilot will only hear the selected com receiver and
unswitched inputs.
Swap Mode (Switch from Com 1 to Com 2 remotely)
With a yoke mounted, momentary switch, the pilot can change from
the current Com transceiver to the other by depressing this switch. To
cancel "Swap Mode," the pilot may either press the yoke mounted
switch again, or select a different Com with the XMT buttons.
Audio Selector (4)
Navigation receiver audio is
selected through five momentary, push-button, backlit
switches. You will always
hear the audio from the selected transceiver.
The users can identify which receivers are selected by noting which
green switch LEDs are lit. Navigation aid audio push buttons are labeled Nav 1, Nav 2, MKR (Marker), ADF and AUX (auxiliary).
DME audio (if present) will come through when the AUX button is
selected. When one of these buttons is pressed, the mode is active,
and the LED will illuminate. Press the switch again and it will be
"off" and remove that receiver from the audio output.
In SPLIT mode, only the pilot will hear selected navigation audio.
Telephone (TEL) (9)
The TEL mode serves as a full duplex interface and
distribution for telephone systems such as AirCell
or portable cellular phones with earpiece jacks.
Pressing the TEL button activates the telephone
mode.
This connects the telephone to the users as follows:
In ALL intercom mode, all crew and passengers
will be heard on the phone when they speak. Com and other selected
radio audio is also heard in the headsets. If the pilot or copilot pushes
the radio PTT, their mic will be transferred to the selected Com radio.
Page 4 202-890-0202 PMA8000B Pilot Guide Rev. 6
The telephone party will not hear ATC communications, and vice
versa.
In CREW mode, only the pilot and copilot are connected to the telephone. Passengers will not hear the telephone. The pilot and copilot
will also have transmit capability on the other selected transceiver.
In ISO intercom mode, when the PMA8000B is in the TEL mode,
the pilot position is in the "Phone Booth." Only the pilot will hear the
telephone, and only he will be heard. He will also have access to Com
1 or 2, and will transmit on that radio using the PTT. All selected audio is provided to the pilot.
Note: Because the cell-phone uses an intercom circuit, all stations on that circuit will lose intercom capability when the cell
phone is in use.
Speaker Amplifier (5)
The SPR in the lower right section stands for
speaker. This switch will place all selected audio
on the cockpit speaker when this switch is selected. Except for the unswitched audio, the
speaker amplifier is not active in the "Split
Mode”.
Unswitched audio 1, 3 and 4 (the inputs dedicated to autopilot disconnect, altimeter warning, etc.) may come
through the speaker regardless of the speaker button position.
Depending on installation, important audio annunciations such as radar altimeter or autopilot disconnect will come over the speaker even
if it is not selected, while other unswitched, but muted inputs, such as
GPS alerts, will only be present if the
SPR button is selected. Consult your
professional avionics installer for
these important configuration details.
Public Address Function
To access PA function, press the
Mute and SPR buttons simultaneously. The Mute and SPR LEDs
will blink to indicate the audio panel is in PA mode. The copilot can
continue to use the selected com radio while the pilot will now be
heard over the speaker. To exit PA mode, push Mute and SPR again.
June 2008 PMA8000B Pilot Guide
202-890-0202 Page 5
Loading...