{"product_id":"50-helix-gps-helical-antenna-sma-male","title":"50 HELIX GPS Helical Antenna, SMA Male","description":"\u003cp\u003eA compact passive helical GPS antenna with an SMA Male connector, designed to give your Meshtastic™ or MeshCore™ node a stronger GNSS fix outdoors. Multi-constellation reception across GPS, GLONASS, Galileo, and BeiDou makes it equally at home on a fixed solar node, a handheld build, or a drone.\u003c\/p\u003e\n\u003ch2\u003eKey Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e📡 \u003cstrong\u003eMulti-Constellation GNSS\u003c\/strong\u003e Covers 1559–1602 MHz, which captures GPS L1, GLONASS L1, Galileo E1, and BeiDou B1 for more satellites in view and faster cold-start lock times than a GPS-L1-only antenna.\u003c\/li\u003e\n\u003cli\u003e🔄 \u003cstrong\u003eHelical, Not Patch\u003c\/strong\u003e A helical radiation pattern works in any orientation — important for handhelds, vehicle-mounted nodes, and drones where a flat-sky patch antenna would lose lock when tilted. Mount it sideways, upside down, or on the move; it keeps working.\u003c\/li\u003e\n\u003cli\u003e🛡️ \u003cstrong\u003eSealed for Outdoor Use\u003c\/strong\u003e A black rubber O-ring at the base compresses against your enclosure for a weather-tight bulkhead seal. The helix itself is fully enclosed in a black plastic radome, so there are no exposed elements to corrode or snag.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eThe SMA Male end has a center pin with an outer-threaded shell. It screws directly into any SMA Female (SMA-F) bulkhead — including the GPS bulkhead position on the Atlavox Beacon's antenna rail, or any custom Meshtastic build with an SMA Female GPS exit.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePassive antenna — here's what that means for you:\u003c\/strong\u003e This antenna has no built-in amplifier and draws no power. It's designed to work with GPS modules that have their own internal LNA, which is exactly how the \u003ca href=\"https:\/\/atlavox.com\/products\/rak-gnss-gps-wisblock-module-rak12500\"\u003eRAK12500\u003c\/a\u003e (u-blox ZOE-M8Q) and \u003ca href=\"https:\/\/atlavox.com\/products\/rak-gps-wisblock-module-rak12501\"\u003eRAK12501\u003c\/a\u003e (Quectel L76K) are built. For best performance with a passive antenna, keep the coax run between your GPS module and this antenna under about 1 meter (3 feet) — long cable runs add signal loss that an active antenna would compensate for.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eScrews directly onto the \u003ca href=\"https:\/\/atlavox.com\/products\/atlavox-beacon-solar-meshtastic-node\"\u003eAtlavox Beacon\u003c\/a\u003e antenna rail (SMA-F cutout), and can connect to the BLE\/GPS SMA port on the enclosure if you're not using an external Bluetooth antenna. Alternatively, you can drill an additional hole through your enclosure to install another \u003ca href=\"https:\/\/atlavox.com\/products\/antenna-cable-rg178-ipex-f-to-sma-f-waterproof\" title=\"iPEX to SMA cable\"\u003eSMA to iPEX cable\u003c\/a\u003e to connect to your GPS module inside. \u003c\/li\u003e\n\u003cli\u003ePairs with the \u003ca href=\"https:\/\/atlavox.com\/products\/rak-gnss-gps-wisblock-module-rak12500\"\u003eRAK12500\u003c\/a\u003e (u-blox ZOE-M8Q) and \u003ca href=\"https:\/\/atlavox.com\/products\/rak-gps-wisblock-module-rak12501\"\u003eRAK12501\u003c\/a\u003e (Quectel L76K) when you replace the onboard chip antenna using an \u003ca href=\"https:\/\/atlavox.com\/products\/antenna-cable-rg178-ipex-f-to-sma-f-waterproof\"\u003eiPEX-F to SMA-F pigtail cable\u003c\/a\u003e to bring the GPS signal to an external SMA bulkhead.\u003c\/li\u003e\n\u003cli\u003eWorks with any DIY Meshtastic™ or MeshCore™ build that has an \u003cstrong\u003eSMA Female\u003c\/strong\u003e GPS port and uses a passive-antenna-compatible GPS module (most modern u-blox and Quectel GNSS chips with internal LNAs qualify).\u003c\/li\u003e\n\u003cli\u003eCompatible with FPV drones, quadcopters, and other airborne platforms that use a standard \u003cstrong\u003eSMA Female\u003c\/strong\u003e GPS input — the helical pattern is especially well-suited to airframes that constantly change orientation in flight.\u003c\/li\u003e\n\u003cli\u003eNot compatible with RP-SMA GPS ports (rare on GPS modules, but worth checking).\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Signal Plus","offers":[{"title":"Default Title","offer_id":52269674955026,"sku":"AVX-AN-50H","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/0957\/4674\/files\/MSD3812.jpg?v=1778687258","url":"https:\/\/atlavox.com\/products\/50-helix-gps-helical-antenna-sma-male","provider":"Atlavox","version":"1.0","type":"link"}