The SPA-4S is a 2 or 4 place voice activated intercom with inputs for stereo music. It is a small, compact system that allows it to fit in space critical panels. The SPA-4S uses the industry standard Sigtronics squelch, fast on slow off for hands free communication.
Optimized for the High Noise Environment Sigtronics new two place Sport 200 and Sport 200 S Intercoms are designed specifically for Light-Sport and Ultralight aircraft. Tested at ambient noise level...
Sigtronics pioneered the voice activated intercom market in 1974 and continues to deliver value and performance today in the 4 or 6 place FAA TSO approved SPA-400 / 600 intercom series. With fail safe features that allow pilots to always hear the radio even if the intercom is off, and radio priority that assures ATC only hears the crew member transmitting, the SPA intercom series is the standard by which all others are judged.
All the features of our stereo pilot isolate series in an FAA TSO approved intercom only (no music capability) package. The SCI-6 six place offer dual volume and squelch, three modes of operation: All, ISO, Crew, and includes our fail-safe feature. By placing the intercom in the ISO mode of operation, the pilotís microphone and headphone are routed directly to the aircraft radios