9800 Martel Road Lenoir City, TN 37772 www.ps-engineering.com PMA5000EX Audio Selector Panel Stereo Intercom System Flying Never Sounded So Good! ™ Pilot’s Guide and Operation Manual 202-550-0100 New Release January 2010 Covered under one or more of the following Patent No.
This pilot guide provides detailed operating instructions for the PS Engineering PMA5000EX, 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 operating areas of the PMA5000EX systems. They are Com Transceiver Selection, Receiver Audio Selector, Intercom, and use of the utility jack.
on the selected radio. The PMA5000EX automatically selects the receiver, and will not allow you to transmit on a radio without being able to hear the receive audio. If you want to listen to the other radio, press the upper button, in the RCV (receive) section. If the Monitor function is activated, the audio from this radio will be muted when the primary radio (selected for transmit) is receiving a signal. When you have a com selected for receive, it will stay selected until you manually deselect it.
themselves. The crew intercom can be reactivated if desired by pressing the “Mute” button. 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. When you invoke the split mode, the intercom between the pilot and copilot gets turned off to prevent confusion from multiple conversations. However, if conversation between pilot and copilot is desired, push the Mute button to reactivate the intercom.
AUX Source Muting AUX 1 and AUX 2 have a temporary muting function. When you select AUX 1 or AUX 2, and want to silence that audio source temporarily you can hold the AUX 1 or 2 button for more than one second, and the audio be deselected for the next 60 seconds. It will then return to the “ON” state. This is useful if you want to silence an audio advisory signal temporarily, but don’t want to forget to switch it back on .
Intercom Operation IntelliVox® VOX-Squelch IntelliVox® is PS Engineering’s proprietary intercom squelch control. Through the use of digital signal processors, the each individual microphone input is monitored, and opens instantly when human speech is detected. This results in seamless conversations aboard the airplane for crew and passengers, without annoying syllable clipping or fatigue-inducing noise. No adjustment of the IntelliVox® squelch control is necessary. There is no field adjustment.
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 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 cabin, such as in the hangar, or without the engine running. This is also normal.
selected. This music source will be muted, depending on the selected music muting mode. In the Crew mode, only the pilot and copilot positions hear the aircraft radios, both the selected receivers and the unswitched audio sources. They hear music #1. The passengers can talk to each other, and do not hear the aircraft radios. They will hear Music #2. In pilot Isolate mode (Iso), the pilot is all alone with the aircraft radios, and does not hear any intercom conversation.
Audio Advisory Input Crew You can use the utility jack as an input for your portable traffic advisory or terrain avoidance unit. Unless you have music playing in Music 1 through the rear connector, we recommend that you turn music muting off, with the “Mute” button, so this audio is not interrupted. We’ve built some intelligence into the PMA5000EX, too. If you do have music 1 playing, the PMA5000EX will then interpret the jack input as a priority audio, and not mute it.
This mode is useful if your passengers have a different interest in entertainment or are watching a DVD, but do not want to be excluded from the intercom conversations. Music Muting There is a separate SoftMute ® muting circuit for each music input (#1 and #2). The front panel "Mute" button has four modes, and only controls the Mute function for music 1. Music 2 muting is controlled by an external switch, and has two modes.
what you expect, try increasing the volume as described above. It will take about 10 seconds to go from minimum to maximum volume. Warranty & Service In order for the factory warranty to be valid, the installations must be accomplished by an FAA(or other ICAO agency) certified avionics shop and authorized PS Engineering dealer. If the unit is being installed by a non-certified individual, a factory-made intercom harness must be used for the warranty to be valid. PS Engineering, Inc.
RECORD PMA5000EX Serial Number: ___________________ Date of Purchase: ____________________________ Installed by:_________________________________ PS Engineering, Inc. 2010 © Copyright Notice Copyrighted information in this manual is subject to change without notice. PS Engineering reserves the right to improve or change the products or contents of this manual, without notification of any person or agency.
