{"product_id":"gnss-bandpass-filter-1100-1700-mhz-with-dc-bypass","title":"GNSS Bandpass Filter 1100–1700 MHz with DC Bypass","description":"\u003ch2\u003e\n\u003cspan style=\"color: #2b00ff;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003ePRODUCT OVERVIEW\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis is a compact GNSS bandpass filter covering GPS L1-L5, GLONASS, BeiDou\/COMPASS, and Navic in a single 1100–1700 MHz passband. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eInsertion loss is under 3 dB, with out-of-band attenuation greater than 25 dB from 50 MHz–1 GHz and 2–3 GHz — enough to keep cellular, LTE, UHF, and nearby ISM-band interference from degrading reception of already-weak GNSS signals.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis variant includes a \u003c\/span\u003e\u003cspan\u003eDC bypass\u003c\/span\u003e\u003cspan\u003e: it passes DC voltage from your GNSS receiver straight through the filter and out the RF input port to the antenna. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eIf your setup powers an active GNSS antenna over the same coax that carries the signal back — which most active antennas do — this filter lets that power reach the antenna without needing a separate bias tee in the chain.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe filter uses SMA-F connectors, handles up to +33 dBm input, and operates across a -40°C to +85°C range.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 style=\"font-weight: 400;\"\u003e\u003cstrong\u003eAPPLICATIONS\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eGNSS signals arrive extremely weak — often 20–30 dB below the noise floor before despreading even helps. Strong nearby sources like cellular, LTE, UHF, and 915 MHz\/2.4 GHz ISM-band transmitters can desensitize a receiver or LNA even when they're not close in frequency, costing you acquisition margin and tracking reliability you can't get back downstream. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis filter rejects that interference before it reaches your receive chain, while passing DC through to keep your active antenna powered.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eTypical uses:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eGNSS reception in weak-signal environments (rooftop, under canopy, indoor-adjacent installs)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eProtecting a GNSS receiver or LNA from cellular, LTE, UHF, and ISM-band interference\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eFiltering ahead of an active antenna without adding a separate bias tee to the chain\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eNot sure if you need the DC bypass version?\u003c\/span\u003e\u003cspan\u003e If your GNSS receiver powers the antenna over the same coax as the signal — the standard setup for most active GPS\/GNSS antennas — you need this one. If your system doesn't inject power that way, the\u003c\/span\u003e\u003ca href=\"https:\/\/gpio.com\/collections\/gnss\/products\/gnss-gps-l1-l5-glonass-beidou-navic-1100-1700-mhz-bandpass-filter\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003estandard version without DC bypass\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e is the right choice instead, and costs the same.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 style=\"font-weight: 400;\"\u003e\u003cstrong\u003eSPECIFICATIONS\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv dir=\"ltr\" align=\"left\"\u003e\n\u003ctable\u003e\n\u003ccolgroup\u003e \u003ccol width=\"208\"\u003e \u003ccol width=\"227\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003ePassband\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp dir=\"ltr\" style=\"text-align: center;\"\u003e\u003cspan\u003e1100–1700 MHz\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eInsertion loss\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp dir=\"ltr\" style=\"text-align: center;\"\u003e\u003cspan\u003e\u0026lt; 3 dB\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eOut-of-band attenuation\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp dir=\"ltr\" style=\"text-align: center;\"\u003e\u003cspan\u003e\u0026gt; 25 dB (50 MHz–1 GHz)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp dir=\"ltr\" style=\"text-align: center;\"\u003e\u003cspan\u003e\u0026gt; 25 dB (2–3 GHz)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 style=\"font-weight: 400;\"\u003e\u003cb\u003eNOTES\u003c\/b\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003eMaximum RF input signal level: +33 dBm\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003eConnectors: SMA-F\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003eOperating temperature: -40°C to +85°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eRELATED PRODUCTS\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/gpio.com\/collections\/gnss\/products\/gnss-gps-l1-l5-glonass-beidou-navic-1100-1700-mhz-bandpass-filter\"\u003eGNSS Bandpass Filter\u003c\/a\u003e - same passband, no DC bypass\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/gpio.com\/collections\/bias-tees\/products\/gnss-filtered-bias-tee-gps-l1-l5-glonass-beidou-navic-1100-1700-mhz\"\u003eGNSS Bias Tee\u003c\/a\u003e \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GPIO LABS","offers":[{"title":"Default Title","offer_id":71845263278102,"sku":null,"price":63.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1963\/0387\/files\/20260811_102027.jpg?v=1786564308","url":"https:\/\/gpio.com\/products\/gnss-bandpass-filter-1100-1700-mhz-with-dc-bypass","provider":"GPIO LABS","version":"1.0","type":"link"}