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9800 Martel Road
Lenoir City, TN 37772
www.ps-engineering.com
PMA450C
Audio Selector Panel
With
Multi-Bluetooth® Connectivity
Marker Beacon Receiver
IntelliVox® Intercom, IntelliAudio®
and
USB-C Charging System
Pilot's Guide
and
Operation Manual
202-450-0800
June 2022
Covered under one or more of the following US Patents
4,941,187; 5,751,817; 5,903,227; 6,160,496; 6,493,450;
FAA-TSO C139a, C35d, C71
Flying never sounded so good ®
June 2022
PMA450C Pilot Guide
202-450-0800
Page 1
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Summary of Contents for PS Engineering PMA450C
- Page 1 Pilot’s Guide Operation Manual 202-450-0800 June 2022 Covered under one or more of the following US Patents 4,941,187; 5,751,817; 5,903,227; 6,160,496; 6,493,450; FAA-TSO C139a, C35d, C71 Flying never sounded so good ® June 2022 PMA450C Pilot Guide 202-450-0800 Page 1...
- Page 2 Music Volume Nav Audio Selection PS Streamer Public Address Recall functions Renaming Inputs Recorder & Playback Screen Adjustments Speaker Split Mode Swap Mode Timer Operation User Setup Menu Volume Wired Satellite phone Page 2 Rev. 9 202-450-0800 PMA450C Pilot Guide...
- Page 3 Starting from the left is Volume Control and on/off (or Emergency—Fail Safe). Pushing the knob turns the PMA450C off or on. It will come on when the avionics master is turned on. When the unit is turned off, the fail safe circuit will connect your pilot headset directly to COM 1.
- Page 4 If you want to listen to COM 2 while talking and listening on COM 1. Push the C2 (COM 2) RCV button (3). Its green indicator will light. Here’s a hint. The PMA450C will remember when you were listening to a radio only, and keep listening as you select it for transmit, and then switch back when the XMT is deselected.
- Page 5 Com Monitor Mode The next function in this menu is the Monitor function, which allows a sec- ondary com radio audio to be muted by the primary radio (selected for trans- June 2022 PMA450C Pilot Guide 202-450-0800 Page 5...
- Page 6 (#3 & #4), such as GPS alerts, will only be present if the SPR button is selected. Consult your profes- Page 6 Rev. 9 202-450-0800 PMA450C Pilot Guide...
- Page 7 (internal and external) are in working order. Releasing the button returns to the last sensitivity. If you want to mute the audio over a marker station, pressing the MKR for one second causes the marker June 2022 PMA450C Pilot Guide 202-450-0800 Page 7...
- Page 8 High sensitivity is activated. Hold the MKR button again to set to Low sensitivity. Intercom Operation (8) The PMA450C uses our patented IntelliVox® squelch control. It is complete- ly automatic. Through individual signal processing, the ambient noise ap- pearing in all six microphones is constantly being sampled. Non-voice sig- nals are blocked.
- Page 9 Mono headsets in Stereo Installation Not recommended, because the benefit of IntelliAudio® is lost. However, if desired, the PMA450C can be installed monaurally by using the LEFT audio connections only (left side contains Fail-Safe audio). Do NOT short left and right together.
- Page 10 Okay, now the person in the copilot seat does not wish to interact with the aircraft operation. When you configure the PMA450C as “Copilot as Passen- ger,” the intercom station wired as copilot will be a passenger only. To enable the Copilot as PAX Mode, press RADIO-ICS→...
- Page 11 •Radio – Radio will mute music, but intercom will not mute music. The PMA450C defaults to Mute ALL when turned on, unless Mute Recall mode is enabled in setup (See page 18). In addition to the panel mute menu, a remote switch may be installed to al- low the passengers local access to their Mute Off mode.
- Page 12 Entertainment line-select button, while in the ISO mode. Bluetooth® connections The first thing to know is that the PMA450C with a PS Streamer (Part Num- ber 050-450-0801 and –0901) has two Bluetooth Modules, (BT1 and BT2 by default).
- Page 13 This is normal and will result in the device remaining connected when the auto connect process is completed. If two iOS devices are paired and connected to the PMA450C, and one of them does not auto connect on the next power cycle (perhaps it isn’t in the airplane, or the Bluetooth is turned off), it will be ignored until it is recon- nected manually.
- Page 14 Wired telephone/Satcom mode The PMA450C can accommodate a wired telephone input as well as a Blue- tooth connection. However, only one can be active at a time. The Bluetooth icons are absent from the wired menu.
- Page 15 Recorder and playback (3) The PMA450C has an internal recorder. This digital system stores the last incoming audio from the radio you have selected for transmit. It can store as many as 8 incoming messages, and up to 45 seconds of audio. The pilot and copilot hear the playback.
- Page 16 User Setup menus The PMA450C has many user adjustable functions accessible from a setup menu. During the unit boot up process, press the lower line select button until the setup screen appears. This will place the unit into the “User Configurable Mode- home screen”.
- Page 17 Cycle the PMA450C power to exit setup mode. Bluetooth Setup (BT1 and BT2) There are two Bluetooth modules in the PMA450C. There are three Bluetooth 1 functions that can be changed in the user setup screen, Unpair All, Pair PIN code, and device ID.
- Page 18 The PMA450C can be renamed using this mode to show up on the devices with a personalized identifier. Recall Options As shipped by the factory, the PMA450C automatically defaults to “Mute On.” This ensures that the music will always be muted until intention- ally changed by the pilot.
- Page 19 THIS PAGE INTENTIONALLY BLANK June 2022 PMA450C Pilot Guide 202-450-0800 Page 19...
- Page 20 THIS PAGE INTENTIONALLY BLANK Page 20 Rev. 9 202-450-0800 PMA450C Pilot Guide...
- Page 21 PS Streamer Operation The PMA450C is equipped with a PS Streamer audio module. This module provides a Bluetooth® output of selected signals from the audio panel. These can be streamed to devices such as a GoPro Hero 3 or 4 equipped with a SENA GP10 adapter or other compatible de- vice.
- Page 22 NOTE: If the device has not paired in about a minute, press “Cancel” on the PMA450C. Wait 2 seconds, and press “Pair” again. Repeat until the device connects. Streamer Streamer &...
- Page 23 The volume of the radio output to the PS Streamer module can also be adjusted, press Radio-ICS ➔ More ➔ ➔ Streamer Volume, and use the small knob to set the level. We recommend starting at 10, the highest level. June 2022 PMA450C Pilot Guide 202-450-0800 Page 23...
- Page 24 All domestic transportation charges for returning the exchange or repaired unit to the purchaser will be borne by PS Engineering, Inc. The risk of loss or damage to the product is borne by the party making the shipment, unless the purchaser requests a specific method of shipment. In this case, the purchaser assumes the risk of loss.
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