For Experimental / LSA / Non-Certified Aircraft only.
The PM500EX provides all basic intercom capabilities plus many of the most advanced features usually only found in more expensive models. Among the best features:
Individual output amplifiers for pilot, copilot, and passengers 1 and 2, giving enough audio punch to allow communications in very noisy environments.
Voice Operated Relay (VOX) circuitry prevents mic audio from getting through the intercom until someone speaks or triggers the VOX open switch.
Automatic fail-safe interconnect to the aircraft radio wires the pilot's headset to the aircraft radio in the event of disrupted power or related failure.
Input jack giving pilots and passengers the option to listen to music during flight. During intercom activity, a mute feature will allow communications without distraction. Note that radio reception will NOT mute the music.
Pilot isolate mode allows the pilot to communicate without interruption during critical phases of the flight while passengers talk and listen to music.
Separate pilot and copilot transmit capabilities ensures that only the person pressing the PTT will be heard over the radio.
With the PM500EX, you get years of trouble-free operation in a very inexpensive unit.
PS Engineering requires all units to be sold with custom harness in order to maintain factory warranty. Units sold without harness will receive no factory warranty. All PS Engineering orders with custom wire harness are build to order and require all questions to be filled out to process correctly. Any custom order not complete will cause delays. All custom harnesses are built to IPC-WHMA-A-620 standards via the manufacturer?s installation manual. Any additional comments or special requests may be noted in the Special Instructions field at checkout for review by the avionics team. For questions regarding custom harnesses for PS Engineering please email avionics@aircraftspruce.com or call us at 800-826-3160.
Ответ:Per P.S Engineering: aside from one being for experimental aircraft the other is TSO, the key differences are: 1000 II comes with the Jack Kit and can be multiple box (expanded) PM 500: No Jack Kit and can only be single box (not expandable)