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The Nova Tower © 2026
The Cobra 3865 is a highly specialized, Thatcham Category 2-1 insurance-approved car alarm system designed primarily as an upgrade for existing vehicle security. This model is often integrated into specific vehicle models, such as the Nissan X-Trail, as a factory-style (OE) security enhancement. Cobra 3865 Security Features
| Specification | Expected Value | | :--- | :--- | | Frequency Range | 26.965 MHz to 27.405 MHz | | Channels | 40 (AM) | | Power Requirement | 13.8V DC (Negative ground) | | Current Drain | 500 mA (Standby) / 1.5A (Transmit) | | RF Output Power | 4 Watts (Legal limit) | | Antenna Connector | SO-239 (Standard UHF female) | | Dimensions (WxDxH) | Approx. 6.5” x 7.5” x 2.25” | cobra 3865 manual exclusive
Cobra Electronics discontinued the 3865 series in 2009. When the company shifted its support to newer models (i.e., the iRadar series), they removed legacy PDFs from their official website. The Cobra 3865 is a highly specialized, Thatcham
Seamless Integration: Since it uses your original key fob, you don't have to carry a second bulky remote. Seamless Integration: Since it uses your original key
In this exclusive blog post, we’re breaking down the essentials of the Cobra 3865
The system can automatically arm 30 seconds after the ignition is turned off and the last door is closed. Diagnostic LED Codes
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