{"product_id":"marine-gps-antenna-replacement-for-garmin-gpsmap-streetpilot-long","title":"Marine GPS Antenna Replacement for Garmin GPSMAP \u0026 StreetPilot - Long","description":"\u003cp\u003eIn this review the reviewer tested the Marine GPS Antenna replacement aimed at boaters and mariners who need a direct, cost-effective substitute for aging Garmin antennas. The bottom line: this antenna is best for users who want a straightforward, plug-and-play replacement with a long 26ft cable and standard TNC\/BNC connectivity. It delivers reliable reception in a low-profile, water resistant housing and replaces many legacy Garmin models, making it a practical choice for installations where cable length and connector compatibility matter.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug and play:\u003c\/strong\u003e The antenna uses a TNC male connector with a supplied BNC adapter so it can be installed quickly on compatible Garmin units without modifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong 26ft cable:\u003c\/strong\u003e The included 8 meter cable gives flexibility for mounting the base away from the display or behind bulkheads when routing is limited.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-profile water resistant housing:\u003c\/strong\u003e The IP65-rated white housing resists spray and weather and mounts on a post or pole using the bottom mounting hole.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide compatibility:\u003c\/strong\u003e The antenna is designed as a replacement for many Garmin GPSMAP, StreetPilot and GPS 15\/100 series units, easing parts sourcing for older systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive amplification:\u003c\/strong\u003e With an amplifier gain of 26dB and LNA gain of 28dB typ., it boosts weak satellite signals to improve lock in challenging environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature tolerant:\u003c\/strong\u003e Rated for operation from -45 to +85C and storage to -50 to +90C, it suits marine conditions and seasonal extremes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe antenna suits boat owners, cruisers and commercial operators who maintain older Garmin navigation or fishfinder systems that accept a BNC or TNC input and need a direct replacement without adapting the head unit. Its long 26ft cable and included base make it especially useful for installations where the helm and mast or mounted post are separated by distance.\u003c\/p\u003e\n\u003cp\u003eIt is less appropriate for users who require GPS with integrated multi-constellation or modern high-precision timing features not specified here, or for those who need a permanently flush deck mount; this is a practical external replacement rather than a low-visibility embedded antenna.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDirect-fit TNC male connector and included BNC adapter simplify connection to many Garmin units.\u003c\/li\u003e\n\u003cli\u003eGenerous 26ft cable allows flexible placement and easier routing in tight boats.\u003c\/li\u003e\n\u003cli\u003eActive amplifier and low noise figure improve signal reception in marginal conditions.\u003c\/li\u003e\n\u003cli\u003eDurable IP65 housing and broad operating temperature range make it marine-ready.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNot a flush or stealth deck mount, which may be undesirable for some installations.\u003c\/li\u003e\n\u003cli\u003eDoes not claim modern multi-band GNSS features; intended as a replacement for legacy Garmin models.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e1575.5MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e3~5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmplifier Gain\u003c\/td\u003e\n\u003ctd\u003e26dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAntenna Gain\u003c\/td\u003e\n\u003ctd\u003e3.5dBic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLNA Gain\u003c\/td\u003e\n\u003ctd\u003e28dB typ.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise Figure\u003c\/td\u003e\n\u003ctd\u003e1.5dB typ.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Length\u003c\/td\u003e\n\u003ctd\u003e26ft (8 meter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eFor owners of compatible Garmin GPSMAP and StreetPilot units, this replacement antenna offers solid value: it is easy to install, provides a long cable for flexible placement, and includes necessary connectors and a mounting base. It is recommended when you need a reliable, weather resistant external antenna to restore or improve reception on legacy marine electronics.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this antenna work with my Garmin unit?\u003c\/strong\u003e\u003cbr\u003eIf your unit accepts a BNC or TNC input and is among the listed legacy Garmin models, it should be compatible; the package includes a BNC adapter for wider fitment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the housing waterproof for deck mounting?\u003c\/strong\u003e\u003cbr\u003eThe housing is IP65 water resistant and suitable for exposed installations, but it is not a sealed flush deck puck intended for permanent embedded mounting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it include a mount and adapters?\u003c\/strong\u003e\u003cbr\u003eYes, the box contains the white GPS antenna with TNC connector, a silver BNC adapter and a black hard plastic base for post or pole mounting.\u003c\/p\u003e","brand":"NEWASHAN","offers":[{"title":"Default Title","offer_id":48624981672155,"sku":"B0BWNPVKQZ","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51DFrYNSL9L._AC_SL1344.jpg?v=1778451527","url":"https:\/\/gearmusthave.com\/products\/marine-gps-antenna-replacement-for-garmin-gpsmap-streetpilot-long","provider":"GearMustHave","version":"1.0","type":"link"}