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David Clark Radio Interface Module U3810 | Part 18884G-01
Integrate your mobile radio with a David Clark Series 3800 Intercom System using the U3810 Radio Interface Module, designed for reliable communication in rugged environments.
Connects a single mobile radio to a Series 3800 intercom system
Supports both transmit and receive radio functions across all stations
Ideal for 2–3 user systems sharing a common push-to-talk (PTT)
Weather-resistant, impact-resistant housing for vehicle installations
Compatible with David Clark C3821 radio interface cords
The David Clark U3810 Radio Interface Module (Part Number 18884G-01) is a compact, durable unit designed to enable full radio integration within a Series 3800 headset communication system. Built for use in mobile platforms such as fire trucks, emergency vehicles, and command units, the U3810 allows up to three users to share a single mobile radio with simultaneous transmit and receive capability. Housed in a rugged, weather-resistant polycarbonate enclosure, this module is engineered to withstand demanding operational environments. It features standard MS-type connectors and is designed for surface mounting inside vehicle interiors, enabling a clean, modular installation for mission-critical communications.
Model: U3810
Part Number: 18884G-01
Input: System input and remote PTT (push-to-talk)
Output: Radio interface with transmit/receive capability
User Capacity: Supports 2–3 users sharing one radio
Best priced around great and speedy service!
Also is the better of the 2 options since it is rated at 5,000 psi, not that I go to that high of pressure but I like the safety and security knowing that my chances of it blowing up in my face are a whole lot better and I can also purchase replacement seals for them at the same shop!!!
I bought the DC PTT because I know and trust the DC quality/durability to hold up to using every day. And so far it’s the best PTT I’ve used. I have a couple other no-name PTTs and the cable sheathing is crumbling and falling off. The DC PTT has worked even in sub zero cabin temp conditions when I didn’t have a functioning heater. I bought two to have a spare but the first one has been working great for 300hrs so far.
