Sigtronics Spo-22 2P Intercom

The Sigtronics Transcom II SPO-22 is a portable, voice-activated two-place intercom designed for hands-free communication between pilot and passenger. It provides two headset positions and supports portable push-to-talk switches for the pilot and copilot positions.

• Voice-activated intercom communication with adjustable volume and squelch controls
• Radio-priority operation during transmission
• Fail-safe radio monitoring: the pilot can continue to hear and transmit on the aircraft radio with the intercom switched off
• Auxiliary monaural audio input for a compatible music or instructional-audio source
• Auxiliary audio output for recording intercom or radio communications
• Operation from one included 9 V battery for up to approximately 40 hours, or from 11–34 V DC aircraft power using the included DC power cable

The SPO-22 measures approximately 102 × 74 × 51 mm and weighs approximately 397 g with battery and auxiliary power cable.

Manufacturer part number: SPO-22

Roctexo reference: RX1-11-02794

Manufacturer operating instructions (PDF)