U3815 Radio Interface Headset Station by David Clark Company

Companies & Organizations:

United States of America

David Clark Company
360 Franklin Street
Worcester, MA 01604

The Series 3800 Vehicle Intercom System is engineered to solve the problem of communicating in high-noise environments with a mobile vehicle platform. Fire apparatus, rescue vehicles, ambulances, command and control vehicles, airline deicers and paint stripers are but a few applications that currently benefit from the Series 3800 system.


The U3815 provides isolated radio transmit capability for one user, and radio receive for the entire Series 3800 Intercom System. It also provides a path to “daisy-chain” to another intercom module, further expanding the system beyond the Master Station.


It includes one headset jack and listen level control, one radio PTT switch, two system input/output connectors, one radio input connector and one optional remote PTT connector for 40071G-04 Footswitch or other remote PTT device.


With a modular design, rugged and weather-resistant enclosures, and functional versatility, the Series 3800 intercom system is an ideal solution for any mobile environment requiring crisp, clear communication and effective hearing protection




Expands the system, beyond the Master Station

Accommodates one Headset

Provides isolated radio transmit capability for the Headset user at this position only, as well as radio receive from the connected radio for all users

Provides connection for further system expansion

Connection for remote PTT switch

Simple installation

One system input connector (C38-XX)

One system output connector (C38-XX)

One radio input connector (C3821)

Headset jack

Connection for optional Footswitch

Listen level control

Radio transmit momentary PTT switch


Technical specifications


Power Requirements          12 or 24 VDC (via U3800)

Enclosure                            Heavy-gauge polycarbonate (-80° to +212°F)

Radio Input                          1 each, via C3821 Radio Interface

Connection                          Cord

System Input Connection    2 each, via C38-xx Jumper Cords

Remote PTT Connection     1 each, via 40071G-04 Footswitch or other remote PTT device

Headset Interface                12B Jack, ¼” (w/ sealed spring lid)

Volume Control                    1 each Headset listen level control

Radio Transmit                    1 each momentary PTT switch

Installation                           Surface mount (mounting kit included)

Weight                                 15.6oz./442g

Dimensions                          6-¾”L x 5-¼”W x 2-3/8"D

Defense Products & Services: U3815 Radio Interface Headset Station by David Clark Company
Companies & Organizations: 
Defense Products & Services Sectors: Communication equipment, ground-based
Description: U3815 Radio Interface Headset Station
Source of Information: David Clark Company Incorporated