Cobra 3865 Manual

These are combined into a single 3-position switch:

Pro tip: Always leave the switch on NB/ANL for general use.

Most Cobra 3865 units are not programmable in the modern sense, but many late-production models include a Dynasearch or Scan feature. If yours has channel scan, here is the sequence from the manual: cobra 3865 manual

To Program Scan Memory (9-channel limit):

Note: Some older 3865 versions lack this feature. Check your manual’s revision date. These are combined into a single 3-position switch:

Without the Cobra 3865 manual, the front panel can look intimidating. Here is the layout from left to right:

| Control | Label | Function | | :--- | :--- | :--- | | 1 | ON/OFF-VOL | Push to turn on/off. Rotate to adjust speaker volume. | | 2 | SQ (Squelch) | Rotate clockwise to silence background noise. Set just above the static point. | | 3 | CHANNEL UP/DOWN | Manually change channels. | | 4 | SCAN | Press to start scanning all 40 channels. Press again to stop. | | 5 | MEM (Memory) | Store a channel into memory (see programming section). | | 6 | CB/PA Switch | Select CB speaker or Public Address (requires external PA speaker). | | 7 | AM/FM Switch | Select AM mode (common) or FM mode (rare, but used in Europe). | | 8 | HI/LOW Power | HI = 4W (full range). LOW = 1W (short range, battery saving). | | 9 | NB/OFF ANL | Noise Blanker / Automatic Noise Limiter – reduces engine whine. | Pro tip: Always leave the switch on NB/ANL

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