Park Rapids Avionics Products
PS Engineering PM1000II Panel-Mounted Intercom w/ Crew Function
This specific part number designates the premium, 4-place panel-mounted monaural intercom system manufactured by PS Engineering. The 11920 variant is differentiated by its integrated "Crew Isolate" mode and dual entertainment source inputs, distinguishing it from the standard baseline model (11922).
Description
This unit has been bench tested by an FAA certified repair station and it comes with an 8130 single release dated 4/16/2026.
Key Technical Capabilities
- Crew Isolation Routing: Features a three-position toggle switch adding a dedicated “Crew” mode. This allows the pilot and co-pilot to isolate themselves into a private front-seat loop to converse and monitor radios without hearing back-seat passenger chatter.
- Dual Entertainment Management: Supports two separate monaural music inputs concurrently. This allows the front-seat crew to listen to one audio source (or mute it entirely) while passengers in the back seats listen to a separate entertainment feed.
- Intelligent Soft Mute Circuitry: Automatically lowers entertainment volume levels whenever there is incoming radio traffic or intercom activity, restoring the music smoothly once the voice transmission stops.
- Failsafe Radio Interconnect: Incorporates a passive internal relay circuit that automatically links the pilot’s headset directly to the aircraft’s primary radio wires if the intercom loses electrical power.
- Copilot Training Override: Manages dual transmit capability so that only the individual pressing their push-to-talk (PTT) button is heard over the airwaves. If both front seats press PTT simultaneously, the copilot overrides the pilot, optimizing the unit for flight training.
Additional information
| Part Number | 11920 |
|---|---|
| Serial Number | K14088-CR |
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