Cell phone sidetone, Speaker amplifier (5) – PS Engineering PMA8000D Installation Manual User Manual

Page 27

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PS Engineering

PMA8000D Audio Selector Panel and Intercom System

Installation and Operator’s Manual

200-890-0304

Page 3-3

Rev. 6, Oct. 2014

Warning:

United States FCC Regulations contained in 47 CFR § 22.925 contain prohibition on airborne operation of
cellular telephones. “Cellular telephones installed 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 air-
craft leaves the ground, all cellular telephones on board that aircraft must be turned off.”

When the pilot connects to the Telephone, the audio panel automatically enters the ISO mode on the inter-
com to facilitate the call. The pilot will still have complete access to the aircraft radios, and will transmit on
the selected com when he uses the radio push-to-talk.

The copilot panel’s Bluetooth transceiver will provide music and telephone for the copilot and the passen-
gers.

The copilot’s Bluetooth device connects the copilot and passengers to this phone and music source. This
connects the telephone to the users as follows:

Intercom mode

Copilot

Passengers

ALL

CREW

*

ISO

 Heard on the phone

*Passenger exclusive telephone conversation

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, but will be heard if the phone is connected.

3.4.1

Cell phone Sidetone

The pilot’s panel does NOT have the capability for cell phone sidetone.

As shipped, the copilots PMA8000D does provide cellular telephone sidetone (the user’s voice fed back to
the headset). Some cell phones provide sidetone. In PMA8000D audio panels, Telephone sidetone can be
disabled by pressing the COM 3 and ADF buttons for more than one second. Cell phone sidetone generated
by the audio panel is not available in the ISO mode.

NOTE: because the sidetone is generated by the PMA8000D intercom, there will never be any sidetone
audio available in ISO mode for either box.

3.5

Speaker Amplifier (5)

The SPR in the lower right section stands for speaker. This switch will place all selected audio on the cock-
pit speaker when this switch is selected. Except for the unswitched audio, the speaker amplifier is not active
in the "Split Mode”.

Unswitched audio, (the inputs dedicated to autopilot disconnect, altimeter warning, etc.) will 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.

3.5.1.1 Public Address Function

To access PA function, press the Mute and SPR buttons simultaneously. The
pilot microphone will be heard on the speaker when the pilot PTT is used. The
copilot can continue to use the selected com radio while the pilot will now be

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