{"product_id":"workman-cbnf3axx-cb-radio-power-noise-filter-stops-auto-interference","title":"WORKMAN CBNF3AXX CB Radio Power Noise Filter - Stops Auto Interference","description":"\u003cp\u003eOur review of the WORKMAN CBNF3AXX finds it is a straightforward accessory for anyone battling hiss, alternator whine or intermittent noise on vehicle radio power feeds. The core reason to buy is simple: it isolates and filters noise at the power source so a CB or mobile radio delivers clearer receive audio and more reliable transmit performance. This review focuses on installation practicality, wiring quality, and real-world noise reduction for common mobile radios that use a 3 pin plug.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eNoise suppression:\u003c\/strong\u003e The inline 20 amp noise filter reduces electrical interference from alternators and other vehicle systems so radio audio is cleaner and easier to understand.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e3 pin compatibility:\u003c\/strong\u003e The included 3 pin plug fits Uniden, Cobra, Galaxy and many other CB and mobile radios for quick connection without cutting factory plugs.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eHeavy gauge wiring:\u003c\/strong\u003e The 12 gauge, 6 ft lead provides a durable, low-resistance power run that helps maintain stable voltage to the radio over distance.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDual fuse protection:\u003c\/strong\u003e Two fuse holders on positive and ground add an extra layer of circuit protection and make troubleshooting fuses easier.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eVehicle-ready design:\u003c\/strong\u003e Built specifically for auto power source feeds so it can be tucked into engine bays or under dash panels during installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe WORKMAN CBNF3AXX is aimed at drivers and installers who use mobile CB or stereo radios and need a reliable, plug-in way to eliminate power-related noise without extensive rewiring. It suits owners of Uniden, Cobra, Galaxy and similar radios that accept a 3 pin power connector and anyone who prefers a wired, fused inline solution over quick fixes like ferrite clamps.\u003c\/p\u003e\n\u003cp\u003eIt is not intended for users who need a complete audio system overhaul, advanced RFI mitigation for commercial fleets, or radios that do not accept the 3 pin power plug. If a vehicle requires custom harness fabrication or additional shielding, a different installation approach may be better.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eEffective reduction of common vehicle power noise, improving receive audio clarity on CB and mobile radios.\u003c\/li\u003e\n \u003cli\u003eConvenient 3 pin plug works with many popular radio brands for fast installation.\u003c\/li\u003e\n \u003cli\u003eSturdy 12 gauge, 6 ft wire run reduces voltage drop and allows flexible mounting locations.\u003c\/li\u003e\n \u003cli\u003eTwo fuse holders provide added circuit protection and simple fuse access.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eLimited to radios that use the 3 pin connector and to installations where an inline filter is sufficient to stop interference.\u003c\/li\u003e\n \u003cli\u003eThe unit is a single-purpose filter and does not replace comprehensive shielding or grounding work needed for complex installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eCBNF3AXX\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eFilter rating\u003c\/td\u003e\n\u003ctd\u003e20 Amp Noise Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eConnector\u003c\/td\u003e\n\u003ctd\u003e3 pin plug for Uniden, Cobra, Galaxy and similar radios\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eWire gauge\u003c\/td\u003e\n\u003ctd\u003e12 Gauge\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eWire length\u003c\/td\u003e\n\u003ctd\u003e6 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eFuse holders\u003c\/td\u003e\n\u003ctd\u003eTwo holders on positive and ground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe WORKMAN CBNF3AXX is a practical, value-minded noise filter for mobile radio users who want a fast, durable fix for power-related interference. Installers and vehicle owners with compatible 3 pin radios will appreciate the heavy 12 gauge wiring and dual fuse holders, and most will see a noticeable improvement in audio clarity without complex modifications.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this fit my CB or mobile radio?\u003c\/strong\u003e\u003cbr\u003eIt fits radios that accept the 3 pin power plug, such as many Uniden, Cobra and Galaxy models; verify your radio uses a 3 pin connector before buying.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this unit be mounted under the dash or in the engine bay?\u003c\/strong\u003e\u003cbr\u003eYes, the 6 ft 12 gauge lead allows flexible placement under dash panels or in engine bays, but avoid direct exposure to high heat or moving parts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I still need additional grounding or shielding?\u003c\/strong\u003e\u003cbr\u003eIn most common noise cases this filter is sufficient, but complex RFI problems may require additional grounding or shielding work beyond the inline filter.\u003c\/p\u003e","brand":"Workman","offers":[{"title":"Default Title","offer_id":48638468751579,"sku":"B00SHKIFFM","price":37.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61QgPKjXEIL._AC_SL1200.jpg?v=1778549983","url":"https:\/\/gearmusthave.com\/products\/workman-cbnf3axx-cb-radio-power-noise-filter-stops-auto-interference","provider":"GearMustHave","version":"1.0","type":"link"}