PS Engineering Avidyne PMA8000B Manuale utente

202-890-0202 Page 1

Feb. 2009 PMA8000B 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

9800 Martel Road

Lenoir City, TN 37772

www.ps-engineering.com

PMA8000B

Audio Selector Panel

Marker Beacon Receiver

High-fidelity Stereo Intercom System

Pilot’s Guide

and

Operation Manual

202-890-0202 Revision 7 February 2009

Page 2 202-890-0202 PMA8000B Pilot Guide Rev. 7

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, Inter-

com, 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, inter-

com 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 re-

ceiver audio. Push the lower button to select the desired COM trans-

mitter.

202-890-0202 Page 3

Feb. 2009 PMA8000B Pilot Guide

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

COM 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 COM 1 to COM 2, if COM 2 audio was

previously selected, COM 1 audio will continue to be heard. This

eliminates the pilot having to switch Com 1 audio back on, after

changing transmitters.

When switching from COM 1 to COM 2 while Com 2 was not previ-

ously selected, COM 1 audio will be switched off. In essence, switch-

ing the mic selector will not override prior selection of COM receiver

audio.

In normal (not split) modes, the PMA8000B gives priority to the pi-

lot’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 con-

tinue. (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 COM 1 and COM 2 XMT

buttons at the same time. This places the

pilot on COM 1 and the copilot on COM 2.

Pilot on COM 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.

Page 4 202-890-0202 PMA8000B Pilot Guide Rev. 7

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 momen-

tary, push-button, backlit

switches. You will always

hear the audio from the se-

lected transceiver.

The users can identify which receivers are selected by noting which

green switch LEDs are lit. Navigation aid audio push buttons are la-

beled 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.

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.

202-890-0202 Page 5

Feb. 2009 PMA8000B Pilot Guide

The telephone party will not hear ATC communications, and vice

versa.

In CREW mode, only the pilot and copilot are connected to the tele-

phone. 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 au-

dio is provided to the pilot.

Note: Because the cell-phone uses an intercom circuit, all sta-

tions on that circuit will lose intercom capability when the cell

phone is in use, unless there is cell phone sidetone present.

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 se-

lected. Except for the unswitched audio, the

speaker amplifier is not active in the "Split

Mode”.

Unswitched audio 1, 3 and 4 (the inputs dedi-

cated 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 ra-

dar 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.

Page 6 202-890-0202 PMA8000B Pilot Guide Rev. 7

Intercom Operation

IntelliVox® VOX-Squelch

No adjustment of the IntelliVox® squelch control is necessary. There

is no field adjustment. Through three individual signal processors, the

ambient noise appearing in all six microphones is constantly being

sampled. Non-voice signals are blocked. When someone speaks, only

their microphone circuit opens, placing their voice on the intercom.

The system is designed to block continuous tones, therefore people

humming or whistling in monotone may be blocked after a few mo-

ments.

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 (a)). It is important to have the microphone element par-

allel to your mouth, and not twisted inside the cover.

Oregon Aero MicMuff Part Numbers

Headset

Manufacturer Model Part Number

Bose Dynamic

Electret

M87

90010

90015

90020

David Clark H10-30

H10-20, H10-40

H10-13.4, 13X

H20-10X

90010

90015

Lightspeed All 90015

Peltor 7003

ANR Pro, 7000 90010

90015

Pilot 11-20, 11-90, 1776, DXL 90015

Sennheiser All 90015

Telex Airman 750, AIR4000

AIR3000, Echelon 100 90010

90015

Note: For optimum microphone performance, we recommend

use of a Microphone Muff Kit from Oregon Aero (1-800-888-

6910). This will not only optimize VOX performance, but will

improve the overall clarity of all your communications.

202-890-0202 Page 7

Feb. 2009 PMA8000B Pilot Guide

It is also a good idea to keep the microphone out of a direct wind

path. Moving your head through a vent air stream may cause the In-

telliVox® 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 cabin, 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 copi-

lot. It has no effect on selected radio levels,

music input levels or passengers' volume level.

The larger, outer volume control knob controls

intercom volume or the passengers. It has no

effect on radio or music levels.

Adjust the radios and intercom volume for a

comfortable listening level. Most general aviation headsets today

have built-in volume controls; therefore, volume also can be further

adjusted at the individual headset.

Mono Headsets in Stereo Installation

The pilot and copilot positions work with stereo or mono headsets.

All passenger headsets are connected in parallel. Therefore, if a mon-

aural headset is plugged in to a PMA8000B Stereo installation, one

channel will be shorted. Although no damage to the unit will occur,

all passengers will lose one channel, unless they switch to the

“MONO” mode on the headset. PS Engineering modifies headsets to

add stereo capability, using high-fidelity speakers. Contact factory

(865-988-9800) for details.

Intercom Modes (8)

The “ICS” pushbutton switch on

the left side of the panel provides

the selection of the three intercom

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.

Page 8 202-890-0202 PMA8000B Pilot Guide Rev. 7

This button cycles through the intercom modes, from top to bottom

and then back up, ISO, ALL, Crew, ALL, and ISO. An LED shows

the active mode .

ISO:The pilot is isolated from the intercom and is connected only to

the aircraft radio system. He will hear the aircraft radio reception (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.

ALL:All parties will hear the aircraft radio and intercom. Crew will

hear Entertainment 1, passengers can hear Entertainment 1 or 2. Dur-

ing any radio or intercom communications, the music volume auto-

matically decreases. The music volume increases gradually back to

the original level after communications have been completed.

CREW: Pilot and copilot are connected on one intercom channel and

have exclusive access to the aircraft radios. Again, the music that the

crew and passengers will hear is determined by the Smart Function

Keys.

Marker Beacon Operation (10)

The Marker Beacon

Receiver uses visual

and audio indicators

to alert you when the

aircraft passes over a

75 MHz transmitter.

The Blue lamp, la-

beled “O”, is the Outer Marker lamp and 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 Beacon.

The Amber lamp, labeled “M”, is the Middle Marker lamp and is cou-

pled with a 1300 Hertz tone. It is keyed alternately with short 'dot' and

long 'dash' bursts at 95 combinations per minute.

The White lamp, labeled “I”, is the Inner marker and has a 3000 Hertz

'dot' tone. The lamp and tone will be keyed at a rate of six times per

second.

The audio from the Marker Beacon Receiver can be heard by select-

ing the "MKR" push-button switch. To adjust the volume level, there

is a service adjustment located on the top of the unit.

202-890-0202 Page 9

Feb. 2009 PMA8000B Pilot Guide

A pushbutton is used to set the receiver sensitivity and to test the indi-

cator lamps mute the marker audio.

Use "HI" sensitivity initially. This allows you to hear the outer

marker beacon about a mile out. Then touch the smaller MKR button

to switch into Low Sensitivity mode. “LO” sensitivity gives you a

more accurate location of the Outer Marker. Holding the MKR button

for one second activates marker test lamp, labeled "T/M" and illumi-

nates all three lamps simultaneously to assure the lamps (internal and

external) are in working order. TST does not activate MM autopilot

sense output. Releasing the button returns to the last sensitivity.

Pressing the marker mode select (“T/M”) for one second will also

cause the marker audio to mute for that beacon. The next beacon re-

ceived will re-activate the audio.

Internal Recorder System

The Intercom Recording System is a digital recording system allow-

ing automatic storage and playback of aircraft radio traffic.

Operating as a continuous loop recorder, (first message received will

be the last heard), the recorder has 60 seconds of recording time, or

up to 8 messages. With its own built in VOX circuit, there are no but-

tons to press to start recording. The system automatically begins to

record the instant the radio becomes active. Only the com radio se-

lected for transmit is recorded, and only the pilot and copilot will hear

the playback audio.

Operation

Recording is automatic. To play

back the last recorded message,

press and hold the COM Receive

pushbutton associated with the

selected radio transmitter for

about one (1) second. You can

either wait for the message to

finish playing before accessing the prior message or cancel the play-

back. To cancel the playback, press and hold the COM Receive play-

back button for two seconds (2). The next time the button is pressed

for one (1) second, the next earlier message will be heard.

The playback will stop whenever there is more incoming selected

com audio, and the message can be replayed from the beginning by

pressing the COM playback button..

Page 10 202-890-0202 PMA8000B Pilot Guide Rev. 7

Utility Jack

The 2.5 millimeter (3/32”) jack on the front of the PMA8000B has

three distinct functions:

• Cell phone input

• Advisory audio input

• Music input

The use of this jack is controlled by three Smart

Function Keys (SFK) controlled from the front

panel. See Page 11—Smart Function Keys.

Cellular phone

When a cellular telephone is connected to this jack using a 2.5 mm to

2.5 mm adapter cord (PS Part

Number 425-006-7026), the

PMA8000B audio panel will

connect the intercom to the

cell phone when the “TEL”

button is pressed (9). When

the TEL mode is off, the tele-

phone ringer audio will be

heard if it is present on the telephone’s output (ringer may be muted

by radio and intercom).

Audio Advisory Input

The front jack can be used as a priority advisory input for auxiliary

systems such as a GPS terrain advisory or portable traffic watch sys-

tem. To prevent radio or intercom from muting this input, press the

“Mute” button. NOTE

The front jack is no substitute for the certified installation of alerts

such as the GPS waypoint or autopilot tones. These still must be hard

wired into the back by your installer.

We’ve built some intelligence into the PMA8000B, too.

Smart Jack Function

When the PMA8000B

has a signal on music

#1 input coming in

from the rear connec-

tor, the front panel

Crew

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