PS Engineering PMA8000BT Pilot’s Guide
202-890-0702 Page 1Sept. 2014 PMA8000BT Pilot Guide
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
EASA-Approved ETSO C50c, 2C35d
9800 Martel Road
Lenoir City, TN 37772
www.ps-engineering.com
PMA8000BT
PMA8000BT
Audio Selector Panel
Marker Beacon Receiver
Stereo Intercom System
with Bluetooth™ Connectivity
Pilot’s Guide
Pilot’s Guide
and
and
Operation Manual
Operation Manual
For units with serial number CBT1561 and above
Flying never sounded so good ®
202-890-0702 Rev. 8 Sept. 2014
Page 2 202-890-0702 PMA8000BT Pilot Guide Rev. 8
An operational PMA8000BT simula-
tor is available on PS Engineering
website,
www.ps-engineering.com/pma8000bt.
PMA8000BT controls
Power Switch (1) (EMG-Fail Safe Operation)
The power switch controls all audio selector panel functions, intercom and
marker beacon receiver.
When the unit is turned off, either by pressing the volume control, or if the
breaker is pulled removing power, the PMA8000BT is in Fail-Safe mode. In
this mode, the pilot’s headset is connected to COM 1 for transmit and re-
ceive, and connected to unswitched input #1 for priority audio alerts. The fail
safe audio will only be heard in the left ear of a stereo headset.
Communications Transmit (XMT)
Selection (2)
To select Com 1 or Com 2 for transmit, press the
button on the bottom row, next to the XMT legend. The bottom and top button indicators light,
showing that you will transmit and receive on
the selected radio.
Communications Receive (RCV) Selection (4)
To listen to the other radio, press the upper button, in the RCV (receive) section. When a com is selected for receive, it will stay selected until manually
Transmitter selection
Receiver selection
202-890-0702 Page 3Sept. 2014 PMA8000BT Pilot Guide
deselected, even if you select, and then deselect its transmitter.
Unless the audio panel is in “split” mode, the PMA8000BT gives priority to
the pilot’s radio Push-To-Talk (PTT).
If the Monitor function is activated (Function B), the audio from this radio
will be muted when the primary radio (selected for transmit) is receiving a
signal.
In TEL mode, the pilot is connected to the cell phone, but still hears the
COM radios selected. The radio PTT will switch the mic to the selected com,
and allow continued aircraft communications to continue. (See Page 6—
TEL—for more details)
Audio Selector (4)
These buttons select the
switched navigation receivers.
The DME input (if present) is
also shared with AUX. In SPLIT
mode, only the pilot will hear selected navigation audio.
Cockpit Speaker (5)
This switch will place all selected audio on the cockpit
speaker when this switch is selected. In “Split” mode, the
speaker carries the same audio as the pilot.
Depending on installation, important audio alerts such as radar altimeter or
autopilot disconnect will come over the speaker even if it is not selected,
while other unswitched inputs, will only be present if the SPR button is selected. Consult your professional avionics installer for these important configuration details.
Intercom Operation
IntelliVox® VOX-Squelch
IntelliVox® is PS Engineering’s proprietary intercom squelch control.
Through the use of digital processors, each microphone is monitored, and
opens instantly when human speech is detected. This results in seamless conversations aboard the airplane for crew and passengers, without syllable clipping or fatigue-inducing noise.
No adjustment of the IntelliVox® squelch control is necessary. There is no
field adjustment. The system is designed to block continuous tones, therefore
people humming or whistling in monotone may be blocked after a few moments.
For consistent performance, any headset microphone must be placed within
¼-inch of your lips, preferably against them. (ref: RTCA/DO-214, 1.3.1.1
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(a)). It is important to have the microphone element parallel to your mouth,
and not twisted inside the cover.
Note: For optimum microphone performance, we recommend use of a Microphone Muff Kit from Oregon Aero (1-800-888-6910,
www.oregonaero.com ). This will not only optimize VOX performance, but
will improve the overall clarity of all your communications.
You should also keep the microphone out of a direct wind. Moving your
head through an air stream may cause the IntelliVox® to open momentarily.
This is normal. The IntelliVox® is designed to work with normal aircraft
cabin noise levels (70 dB and above). Therefore, it may not always recognize
speech and clip syllables in a quiet area, such as in the hangar, or without the
engine running. This is also normal.
Intercom Volume Control (7)
The small volume control knob adjusts the loudness of the intercom for the
pilot and copilot. It has no effect on selected radio levels, music input levels
or passengers' volume level.
The larger, outer volume control knob controls intercom volume for the passengers. It has no effect on radio or music levels.
Mono Headsets in Stereo Installation
The pilot and copilot positions work with stereo or mono headsets. If a monaural headset is plugged in to a PMA8000BT Stereo installation, one channel
will be shorted and all passengers will lose one channel unless they switch to
the “MONO” mode on the headset.
Intercom Modes (8)
The intercom has three modes. The description of the intercom mode function is valid only when the unit is not in the "Split" mode. Then, the pilot and
copilot intercom is controlled with the Mute button.
This button cycles through the intercom modes, from top to bottom and then
back up.
ISO: The pilot is isolated from the intercom and is
connected only to the aircraft radio system. He
hears the radios (and sidetone during radio transmissions). The copilot and passengers will hear the
music sources as configured by the audio panel
configuration Function keys. See page 11—Smart
Function Keys for more details.
While in ISO Mode, the pilot can elect to hear music #1. First, be sure that
the ISO mode is selected. Then press and hold the TEL button, then hold the
ICS mode button for more than one second. The ICS indicator will blink
slowly to indicate music is present in ISO. The music muting will be the
selected mode.
202-890-0702 Page 5Sept. 2014 PMA8000BT Pilot Guide
ALL: All parties will hear the aircraft radio and intercom. Crew will hear
Music 1, passengers can hear Music 1 or 2. The music mutes in accordance
with the muting mode selected.
CRW: (Crew) Pilot and copilot are connected on one intercom channel and
have exclusive access to the aircraft radios. The passengers have their own
intercom. The music that the crew and passengers will hear is determined by
the Smart Function Keys.
Marker Beacon Operation (9)
The Marker Beacon Receiver uses visual
and audio indicators to alert you when the
aircraft passes over a Beacon transmitter.
The Blue, Outer Marker lamp has an associated 400-Hertz 'dash' tone. The lamp and
tone will be keyed at a rate of two tones/
flashes per second when the aircraft is in the range of the Outer Marker.
The Amber, Middle Marker lamp is coupled with a 1300 Hertz tone, keyed
alternately with short 'dot' and long 'dash' bursts at 95 combinations per minute.
The White, Inner marker lamp has a 3000 Hertz 'dot' tone, and will be keyed
at a rate of six times per second.
Marker Beacon Receiver audio can be heard by selecting the "MKR" push-button switch. There is a service
adjustment located on the top of the unit to adjust the
volume if desired.
The MKR button located next to the indicator lights is
used to set the receiver sensitivity and to test the indicator lamps mute the
marker audio.
Pressing the MKR button for one second will cause
the marker audio to mute. The next beacon received
will re-activate the audio.
Holding the MKR button for one second also activates marker test, labeled "T/M" and illuminates all three lamps simultaneously to confirm the lamps (internal and external) are working. Releasing the
button returns to the last sensitivity.
Split Mode
To activate the split mode, push both the COM 1
and COM 2 XMT (bottom) buttons at the same
time. All four indicators will come on. In the
split mode, the pilot is on COM 1, while the
copilot is on COM 2.
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Select either of the com XMT buttons to exit the split mode. It is not possible to have the pilot on Com 2 and copilot on COM 1 in split mode.
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.
Telephone (TEL) (10)
The TEL mode serves as a full duplex interface and distribution for telephone systems such as portable cellular phones
with earpiece jacks or Bluetooth connectivity. Pressing the
button 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. 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.
In ISO intercom mode, 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. Selected radio audio is provided to the pilot.
In cases where the cellular telephone doesn’t provide sidetone, the audio
panel can be configured, by holding the TEL and ADF buttons for more than
one second, to create sidetone for you.
Warning:
United States FCC Regulations contained in 47 CFR § 22.925 contain prohi-
bition on airborne operation of cellular telephones. “Cellular telephones in-
stalled in or carried aboard airplanes, balloons or any other type of aircraft
must not be operated while such aircraft are airborne (not touching the
ground). When any aircraft leaves the ground, all cellular telephones on
board that aircraft must be turned off.”
Utility Jack
The 2.5 millimeter (3/32”) jack on the front of the PMA8000BT has three
distinct functions:
Cell phone input (wired)
Advisory audio input
Music input (wired)
(Continued on page 15)
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