David Clark U3801 Drilled Screened Box | P/N 26497P‑04

Reliable full-duplex intercom module for Series 3800 systems. The U3801 provides a rugged, radio-free communication station with EMI shielding in a drilled and screened aluminum enclosure.

• Full-Duplex Intercom Only – Adds a dedicated headset position without radio transmission
• Adjustable Volume Control – Built-in potentiometer for headset listening level
• Weather-Resistant Headset Jack – Sealed connector ideal for aviation and mobile use
• EMI-Resistant Aluminum Enclosure – Drilled and screened box provides interference protection
• Mounting Hardware Included – Grommets and screws included for secure installation
• Made in the USA – Quality construction and EAR99 export compliance

The David Clark U3801 (P/N 26497P‑04) is a specialized intercom-only module in the Series 3800 communication line. Ideal for support personnel or auxiliary users not requiring radio transmission, this unit delivers clear full-duplex communication through a weather-sealed headset jack. The drilled and screened enclosure offers robust EMI shielding and mechanical protection in demanding environments. Each unit ships with mounting hardware and connects easily via MS-type system cables, making it a reliable choice for aviation, rescue, or industrial applications.

Technical Specifications

• Part Number: 26497P‑04
• Model: U3801
• Function: Full-duplex intercom station (no radio TX)
• Enclosure: Drilled and screened aluminum
• Volume Control: Adjustable headset listen level
• Connectors: Headset jack, system I/O port
• Mounting: Includes grommets and screws
• Weight: Approx. 1 lb (shipping weight)
• Country of Origin: USA
• Export Classification: EAR99; Schedule B: 8518.90.3000