PS Engineering

PMA8000-SR Audio Selector Panel and Intercom System

Installation and Operator’s Manual

Appendix A External PTT Hook Up

Part of the installation includes the installation of PTT (Push To Talk) switches that allow the use of your aircraft radio for communications transmissions.

There are three possible configurations ; you must select the case that best fits your installation. NOTE: Only the person who presses their PTT switch will be heard over the radio.

CASE I

The PTT is built into the pilot and copilot yokes

Simply install the plugs from the headset into the aircraft headphone jacks. Then use the yoke mounted PTT to transmit. No other action is required.

CASE II

Built in PTT only on the pilot side only

This configuration requires a modified external PTT switch plugged into the copilot's mic jack. (See De- tails Below) When the copilot's PTT is depressed, this activates an internal relay that switches the mic au- dio to the aircraft radio from the pilot to the copilot.

Case III

No built in PTT switch at all.

Two built-in PTT must be installed, or two external, modified PTT switches will be required for both the pilot and copilot. Modifications to the PTT are required. (See details below)

Push To Talk Modifications

When received from the manufacturer, an after-market PTT switch opens the mic audio path to the "ring" connection of the PTT mic plug until the button is pressed. When the PTT is between the intercom and the headset, the intercom function will not work unless the PTT switch is depressed. A simple modification can be performed to allow proper intercom operation. NOTE: This mod does not alter normal operation.

Below are some examples of typical modifications. Contact the PTT manufacturer for more details if nec- essary.

Procedures For David Clark PTT

Unscrew the round black plastic cover from the jack.

Connect the joined black wires to the red wire.

Replace the round black plastic cover.

Procedures for Telex PT-200

Unscrew the round black plastic cover from the jack.

Cut the red wire in the middle of the wire.

Strip both ends of the insulation.

Solder the two ends to the ground lug to the PTT jack.

Replace the round black plastic cover.

Procedures for Telex PT-300

Unscrew the round black plastic cover from the plug jack.

Remove the heat shrink material from the joined black wires.

Solder these two wires to the lug that has a white wire already soldered to it.

Replace the round black plastic cover

200-880-0000

Appendix A

Rev. 13, July 2006

Page 32 Page 34
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Sirius Satellite Radio PMA8000-SR operation manual Appendix a External PTT Hook Up, Appendix a Rev , July
Page 32 Page 34

PMA8000-SR specifications

The Sirius Satellite Radio PMA8000-SR is a renowned device that integrates advanced technology with user-friendly features, making it a staple for audio enthusiasts seeking a comprehensive satellite radio experience. As part of Sirius’ expanded offerings, the PMA8000-SR provides listeners with a robust selection of channels, ensuring there's something for everyone, from music and news to sports and entertainment.

One of the standout features of the PMA8000-SR is its ability to receive a vast array of satellite radio channels, offering over 150 options that cover a range of genres. This includes commercial-free music, exclusive talk shows, sports coverage, and even comedy channels. The device is designed to deliver high-quality audio, ensuring that listeners enjoy crystal-clear sound, free from the distortions often associated with traditional radio.

The PMA8000-SR incorporates digital signal processing technology which enhances audio clarity and ensures stable reception. With a user-friendly interface, the device allows users to easily navigate between channels and access key functions with minimal effort. The large display screen provides essential information at a glance, including channel names, song titles, and artists.

For in-car use, the PMA8000-SR features seamless integration with vehicles equipped for satellite radio, allowing for an uncomplicated installation process. The device supports multiple installation options, catering to various audio systems with both wired and wireless capabilities. The versatility of the PMA8000-SR ensures that it can be utilized in different environments, whether you're on a long road trip or relaxing at home.

Another notable characteristic is the built-in recording feature, allowing users to capture their favorite shows and music for later enjoyment. The device also includes pause and rewind functionalities, enabling listeners to take control of their audio experience without missing a beat. Additionally, with the compatibility for advanced features such as traffic and weather information, the PMA8000-SR goes beyond traditional radio limitations, providing real-time updates that help enhance driving convenience.

Overall, the Sirius Satellite Radio PMA8000-SR stands out due to its rich feature set, enhanced audio technologies, and exceptional versatility. It’s an ideal choice for those who crave a diverse audio experience with cutting-edge functionality, ensuring that listeners remain entertained wherever they go.
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