{"product_id":"rg400-rf-coax-cable-40-ft-double-shielded-rg400-coaxial-cable","title":"RG400 RF Coax Cable 40 ft - Double Shielded RG400 Coaxial Cable","description":"\u003cp\u003eIn this review the RG400 RF Coax Cable 40 ft is examined for users needing a durable, high-performance coax run for RF and antenna work. The bottom line: this cable is a practical choice for installers and hobbyists who need a flexible, heat-resistant 50 ohm cable with strong shielding and reliable signal transmission; the most compelling reason to buy is its double silver-plated copper braid and PTFE construction, which together deliver consistent conductivity and excellent insulating properties.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble shielding:\u003c\/strong\u003e The silver plated copper double braid provides superior shielding performance to reduce interference on RF signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh temperature jacket:\u003c\/strong\u003e The FEP jacket resists heat and environmental stress, making the cable suitable for demanding installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow loss conductor:\u003c\/strong\u003e The silver plated copper inner conductor and PTFE insulator support good conductivity and stable signal transmission.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide frequency support:\u003c\/strong\u003e Rated to a maximum operating frequency of 12400MHz, the cable handles a broad range of radio and RF applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard impedance:\u003c\/strong\u003e A 50 ohm impedance ensures compatibility with most RF equipment and antennas without complex matching.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong length:\u003c\/strong\u003e The 40 ft package gives flexibility for runs between equipment, repeaters, or antennas without splicing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe RG400 40 ft cable is well suited for radio amateurs, RF technicians, and AV installers who need a reliable 50 ohm coax with strong shielding and a heat-resistant jacket. Its flexibility compared with heavier LMR400-style cables makes it easier to route and coil in tight spaces while still providing solid performance.\u003c\/p\u003e\n\u003cp\u003eIt is less appropriate for users who require factory-terminated connectors or a lighter consumer coax for simple TV hookups; those users should look for pre-terminated cables or lower-spec consumer RG types. Also, if an ultra-low-loss, very heavy duty trunk is required for long outdoor runs, consider specialist low-loss trunk cables instead.\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\u003eExcellent shielding from the double silver plated braid reduces RF interference in noisy environments.\u003c\/li\u003e\n\u003cli\u003ePTFE insulation and silver plated conductor deliver reliable conductivity and strong insulating properties under load.\u003c\/li\u003e\n\u003cli\u003eFEP jacket and construction offer high-temperature resistance and durability for installation flexibility.\u003c\/li\u003e\n\u003cli\u003e40 ft length provides convenience for many antenna and equipment placements without splices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSold as a bulk cable without factory connectors, so users will need to terminate ends for many applications.\u003c\/li\u003e\n\u003cli\u003eHeavier and stiffer than thinner consumer coax types, which may be overkill for very short, low-power runs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Type\u003c\/td\u003e\n\u003ctd\u003eRG400 RF double shielded coax\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e40 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance\u003c\/td\u003e\n\u003ctd\u003e50 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Operating Frequency\u003c\/td\u003e\n\u003ctd\u003e12400MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Conductor\u003c\/td\u003e\n\u003ctd\u003eSilver plated copper (19 x 0.203mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulator\u003c\/td\u003e\n\u003ctd\u003ePTFE (2.95mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Conductor \/ Shielding\u003c\/td\u003e\n\u003ctd\u003eSilver plated copper double braid (3.95mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJacket\u003c\/td\u003e\n\u003ctd\u003eFEP (4.95mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe RG400 40 ft coax is a solid, value-minded choice for radio and RF work where strong shielding, heat resistance, and reliable conductivity matter. Installers and hobbyists who can terminate their own ends will appreciate its flexibility and insulating properties, making it a practical option for medium-length antenna and equipment runs.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this cable come with connectors?\u003c\/strong\u003e\u003cbr\u003eNo, the package includes 1x 40 ft RG400 cable only; connectors must be attached separately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this cable suitable for outdoor use?\u003c\/strong\u003e\u003cbr\u003eThe FEP jacket is heat resistant and durable, but for exposed outdoor long-term burial you should use cable rated specifically for direct burial or add protective conduit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it handle high power RF?\u003c\/strong\u003e\u003cbr\u003eYes, customers report it suits high-powered jumpers and RF applications thanks to the silver plated conductor and robust shielding, but verify power handling for your specific transmitter.\u003c\/p\u003e","brand":"Eightwood","offers":[{"title":"Default Title","offer_id":48260209836251,"sku":"B07WJG7XF6","price":55.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71IjkeHO6_L._AC_SL1500.jpg?v=1778334825","url":"https:\/\/gearmusthave.com\/products\/rg400-rf-coax-cable-40-ft-double-shielded-rg400-coaxial-cable","provider":"GearMustHave","version":"1.0","type":"link"}