{"product_id":"yx-os52-sr-303-rtk-high-precision-multi-frequency-helical-antenna-l1-l2-l5-full-band-suction-cup-base-3m-sma-female-to-male-cable","title":"YX-OS52 SR-303 RTK High-Precision Multi-Frequency Helical Antenna – L1+L2+L5 Full-Band, Suction Cup Base + 3M SMA Female-to-Male Cable","description":"\u003cdiv class=\"product-description\"\u003e\n\u003cp\u003e\u003cstrong\u003eSR-303\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a full‑frequency quad‑helix antenna designed for GPS L1\/L2\/L5, BDS B1\/B2\/B3, GLONASS L1\/L2, and GALILEO E1\/E5a\/E5b. With compact size and lightweight construction, it is widely used in navigation dispatch, tracking monitoring, and telemetry. The quad‑helix design provides stable phase center, high gain, and excellent low‑elevation reception — making it especially suitable for UAVs, handheld terminals, and high‑precision positioning modules.\u003c\/p\u003e\n\u003cdiv\u003eKey features\u003c\/div\u003e\n\u003cul class=\"highlight-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuad‑helix design:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003estable phase center · improves measurement accuracy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh gain:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewide beamwidth · excellent low‑elevation reception\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow noise amplifier:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ehigh out‑of‑band rejection · low power consumption\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; lightweight:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eΦ28×58.5mm · ≤17g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti‑GNSS:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGPS, BDS, GLONASS, GALILEO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP67\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewaterproof · wide temperature range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUAV navigation, aerial photography, traffic monitoring, remote telemetry, handheld terminals, high‑precision positioning modules, RTK systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sub-section\"\u003eFrequency Support\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cspan class=\"badge\"\u003eGPS\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eL1C\/A, L1C, L2, L5\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"badge\"\u003eBeiDou\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eB1C, B1I, B2a, B2b, B2I, B3I\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"badge\"\u003eGLONASS\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eL1, L2\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"badge\"\u003eGalileo\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eE1, E5a, E5b\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sub-section\"\u003eTechnical Specifications\u003c\/div\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eModel\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003eSR-303\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eType\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003eL1+L2+L5 · Quad‑helix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003ePolarization\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003eRight‑hand circular polarization (RHCP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eGain (dBi)\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e≥2.0 @ 90° elevation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eAxial ratio (dB)\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e≤3.0 @ 90° elevation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eLNA gain\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e36 ± 2 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eVSWR\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e≤ 2.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eNoise figure\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e≤ 2.0 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eDC supply\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e3.3 – 12 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eOperating current\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e≤ 45 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eInput impedance\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e50 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"sub-section\"\u003eMechanical Specifications\u003c\/div\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eDimensions\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003eΦ28 mm × 58.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eConnector\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003eSMA‑J\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eWeight\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e≤ 17 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eMounting\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003eSuction cup base included (SMA female to SMA male · 3 m cable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"sub-section\"\u003eEnvironmental Specifications\u003c\/div\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eOperating temperature\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e‑40℃ ~ +85℃\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eStorage temperature\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e‑55℃ ~ +85℃\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eHumidity\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e95% non‑condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"spec-label\"\u003eWaterproof rating\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"sub-section\"\u003ePackage Contents\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eSR-303 helical antenna ×1\u003c\/li\u003e\n\u003cli\u003eSuction cup base with SMA female to SMA male cable (3 m) ×1\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"YanTechLab","offers":[{"title":"Default Title","offer_id":47991997104293,"sku":null,"price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/7367\/9781\/files\/IMG_2595.jpg?v=1783499741","url":"https:\/\/yantechlab.com\/de\/products\/yx-os52-sr-303-rtk-high-precision-multi-frequency-helical-antenna-l1-l2-l5-full-band-suction-cup-base-3m-sma-female-to-male-cable","provider":"YanTechLab","version":"1.0","type":"link"}