{"product_id":"navisys-gr-u01w-usb-pps-timing-gnss-gpsd-ntp-ready-0-5-ms","title":"Navisys GR-U01W USB PPS Timing GNSS — GPSD \/ NTP Ready (~0.5 ms)","description":"\u003cstyle\u003e\n  .gpsws-product-page {\n    --ga-primary: #137c78;\n    --ga-primary-dark: #0f5f5c;\n    --ga-text: #1f2937;\n    --ga-muted: #5f6b7a;\n    --ga-border: #dce7e6;\n    --ga-soft: #f5fbfa;\n    --ga-card: #ffffff;\n    font-family: inherit;\n    color: var(--ga-text);\n    line-height: 1.65;\n  }\n\n  .gpsws-product-page * {\n    box-sizing: border-box;\n  }\n\n  .gpsws-product-page h2 {\n    margin: 42px 0 18px;\n    padding-bottom: 10px;\n    border-bottom: 2px solid var(--ga-primary);\n    color: var(--ga-primary-dark);\n    font-size: 28px;\n    line-height: 1.25;\n    font-weight: 600;\n  }\n\n  .gpsws-product-page h3 {\n    margin: 0 0 14px;\n    color: var(--ga-primary-dark);\n    font-size: 21px;\n    line-height: 1.35;\n    font-weight: 600;\n  }\n\n  .gpsws-product-page h4 {\n    margin: 22px 0 10px;\n    color: var(--ga-text);\n    font-size: 17px;\n    line-height: 1.4;\n    font-weight: 600;\n  }\n\n  .gpsws-product-page p {\n    margin: 0 0 16px;\n    color: var(--ga-muted);\n    font-size: 16px;\n    font-weight: 400;\n  }\n\n  .gpsws-product-page a {\n    color: var(--ga-primary-dark);\n    font-weight: 400;\n    text-decoration: underline;\n    text-underline-offset: 2px;\n  }\n\n  .gpsws-product-page a:hover {\n    color: var(--ga-primary);\n  }\n\n  .gpsws-product-page .intro {\n    padding: 28px;\n    border: 1px solid var(--ga-border);\n    border-radius: 18px;\n    background: linear-gradient(135deg, #ffffff 0%, var(--ga-soft) 100%);\n  }\n\n  .gpsws-product-page .section-note {\n    margin: 0 0 22px;\n    padding: 14px 18px;\n    border-left: 4px solid var(--ga-primary);\n    border-radius: 10px;\n    background: var(--ga-soft);\n    color: var(--ga-primary-dark);\n    font-weight: 400;\n  }\n\n  .gpsws-product-page .content-card {\n    margin: 18px 0;\n    padding: 24px;\n    border: 1px solid var(--ga-border);\n    border-radius: 16px;\n    background: var(--ga-card);\n  }\n\n  .gpsws-product-page .content-card \u003e p:last-child,\n  .gpsws-product-page .content-card \u003e ul:last-child {\n    margin-bottom: 0;\n  }\n\n  .gpsws-product-page .feature-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 18px;\n  }\n\n  .gpsws-product-page ul {\n    margin: 10px 0 0;\n    padding-left: 20px;\n  }\n\n  .gpsws-product-page li {\n    margin: 7px 0;\n    color: var(--ga-muted);\n    font-size: 15.5px;\n    font-weight: 400;\n  }\n\n  .gpsws-product-page .takeaway {\n    margin-top: 14px;\n    padding: 12px 14px;\n    border-radius: 10px;\n    background: var(--ga-soft);\n    color: var(--ga-primary-dark);\n    font-weight: 400;\n  }\n\n  .gpsws-product-page table {\n    width: 100%;\n    margin-top: 14px;\n    border-collapse: collapse;\n    border: 1px solid var(--ga-border);\n    font-size: 15px;\n  }\n\n  .gpsws-product-page th,\n  .gpsws-product-page td {\n    padding: 13px 14px;\n    border-bottom: 1px solid var(--ga-border);\n    text-align: left;\n    vertical-align: top;\n  }\n\n  .gpsws-product-page th {\n    background: var(--ga-soft);\n    color: var(--ga-primary-dark);\n    font-weight: 600;\n  }\n\n  .gpsws-product-page tr:nth-child(even) td {\n    background: #fafcfb;\n  }\n\n  .gpsws-product-page tr:last-child td {\n    border-bottom: 0;\n  }\n\n  .gpsws-product-page .datasheet {\n    margin: 18px 0;\n    padding: 8px 24px 24px;\n    border: 1px solid var(--ga-border);\n    border-radius: 16px;\n    background: var(--ga-card);\n  }\n\n  .gpsws-product-page .datasheet-section {\n    margin-top: 22px;\n    padding-top: 4px;\n  }\n\n  .gpsws-product-page .datasheet-section:last-child {\n    margin-bottom: 0;\n  }\n\n  .gpsws-product-page .datasheet-section h3 {\n    margin-bottom: 8px;\n  }\n\n  .gpsws-product-page .datasheet-table {\n    margin-top: 8px;\n  }\n\n  .gpsws-product-page .datasheet-table td:first-child {\n    width: 34%;\n    color: var(--ga-text);\n    font-weight: 600;\n  }\n\n  .gpsws-product-page .datasheet-table td {\n    color: var(--ga-muted);\n  }\n\n  .gpsws-product-page .section-image-wrap {\n    margin: 16px 0 0;\n    overflow: hidden;\n    border: 1px solid var(--ga-border);\n    border-radius: 14px;\n    background: #ffffff;\n  }\n\n  .gpsws-product-page .section-image-wrap img {\n    display: block;\n    width: 100%;\n    max-width: 100%;\n    height: auto;\n  }\n\n  .gpsws-product-page .caption {\n    margin: 10px 0 0;\n    color: var(--ga-muted);\n    font-size: 14px;\n  }\n\n  @media (max-width: 720px) {\n    .gpsws-product-page h2 {\n      font-size: 24px;\n    }\n\n    .gpsws-product-page h3 {\n      font-size: 19px;\n    }\n\n    .gpsws-product-page .feature-grid {\n      grid-template-columns: 1fr;\n    }\n\n    .gpsws-product-page .intro,\n    .gpsws-product-page .content-card,\n    .gpsws-product-page .datasheet {\n      padding-left: 18px;\n      padding-right: 18px;\n    }\n\n    .gpsws-product-page table {\n      display: block;\n      overflow-x: auto;\n      white-space: nowrap;\n    }\n\n    .gpsws-product-page .datasheet-table td:first-child {\n      width: 42%;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"gpsws-product-page\"\u003e\n\u003cdiv class=\"intro\"\u003e\n\u003cp\u003eThe NaviSys \u003cstrong\u003eGR-U01W\u003c\/strong\u003e is a Timing \/ NTP GNSS receiver built on u-blox’s M10 engine. It delivers a \u003cstrong\u003e1PPS timing reference over a standard USB connection\u003c\/strong\u003e—no dedicated PPS wire required—with host time-transfer precision typically around \u003cstrong\u003e0.5 ms\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eUse it when you need a simple USB GNSS mouse for clock synchronization (NTP \/ GPSD) as well as multi-constellation L1 positioning. It is the current Macx-1 “W” model and the recommended successor to the well-known GR-601W, GR-701W, and GR-801W (also known as GR-8013W).\u003c\/p\u003e\n\u003cp\u003eLike the rest of the GR-U01 family, the GR-U01W is compact (40 × 45 × 16 mm), IP67 waterproof, fully EMI shielded, and rated for industrial temperatures from −40°C to +85°C.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp class=\"section-note\"\u003ePPS over USB · typically 0.5 ms host precision · GPSD \/ NTP ready · u-blox M10 · 1.5 m accuracy · Up to 18 Hz · Concurrent GPS + GLONASS + Galileo + BeiDou · IP67 · 1.5 m USB cable\u003c\/p\u003e\n\u003ch2\u003ePPS over USB — Built for Timing\u003c\/h2\u003e\n\u003cdiv class=\"content-card\"\u003e\n\u003cp\u003eMost USB GNSS receivers output NMEA position only. The GR-U01W also exposes a \u003cstrong\u003e1PPS\u003c\/strong\u003e (one pulse per second) timing reference through the USB interface itself.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePPS events appear as \u003cstrong\u003eDCD state transitions\u003c\/strong\u003e to the host’s \u003cstrong\u003ePL2303\u003c\/strong\u003e USB-serial driver\u003c\/li\u003e\n\u003cli\u003eNo separate PPS cable or GPIO wiring\u003c\/li\u003e\n\u003cli\u003eCompatible with open-source \u003cstrong\u003eGPSD\u003c\/strong\u003e PPS support for Linux \/ BSD timing stacks\u003c\/li\u003e\n\u003cli\u003eHost time-transfer precision is bounded by the USB polling interval—\u003cstrong\u003etypically 0.5 ms\u003c\/strong\u003e (W-series about 0.5–1 ms)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"takeaway\"\u003e→ Plug into USB, feed GPSD \/ NTP, and use GNSS-disciplined time without a dedicated PPS line\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eWhere It Fits\u003c\/h2\u003e\n\u003cdiv class=\"feature-grid\"\u003e\n\u003cdiv class=\"content-card\"\u003e\n\u003ch3\u003eNTP \/ Stratum-1 Style Time Sources\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLow-cost USB GNSS reference for NTP\u003c\/li\u003e\n\u003cli\u003eWorks with GPSD as a time source on Linux and BSD\u003c\/li\u003e\n\u003cli\u003eUseful for servers, routers, and lab clocks that need GNSS lock\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"takeaway\"\u003e→ USB-simple timing when microsecond-class serial PPS is not required\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-card\"\u003e\n\u003ch3\u003eTiming-Critical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePrecise clocks and synchronized devices\u003c\/li\u003e\n\u003cli\u003eNetwork \/ traffic timing and delay analysis\u003c\/li\u003e\n\u003cli\u003eMulti-device time alignment over a shared GNSS reference\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"takeaway\"\u003e→ One USB mouse for both position and a 1PPS time tick\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eW-Series Background\u003c\/h2\u003e\n\u003cdiv class=\"content-card\"\u003e\n\u003cp\u003eThe Navisys “W” models were created so that \u003cstrong\u003e1PPS could travel over a normal USB cable\u003c\/strong\u003e. The first unit, \u003cstrong\u003eGR-601W\u003c\/strong\u003e, was developed with input from \u003cstrong\u003eEric S. Raymond\u003c\/strong\u003e and the \u003cstrong\u003eBufferbloat\u003c\/strong\u003e community and earned the nickname \u003cstrong\u003eMacx-1\u003c\/strong\u003e. It became a familiar choice in GPSD \/ NTP discussions for USB-based timing.\u003c\/p\u003e\n\u003cp\u003eThe line then moved through \u003cstrong\u003eGR-701W\u003c\/strong\u003e and \u003cstrong\u003eGR-801W\u003c\/strong\u003e (also known as \u003cstrong\u003eGR-8013W\u003c\/strong\u003e) as the GNSS chipsets advanced. The \u003cstrong\u003eGR-U01W\u003c\/strong\u003e is the current generation: same Macx-1 USB-PPS idea, now on \u003cstrong\u003eu-blox M10\u003c\/strong\u003e with concurrent four-constellation L1 tracking.\u003c\/p\u003e\n\u003cp\u003eFor new Timing \/ NTP deployments, GR-U01W is the model to choose. The older W receivers remain historically important; GR-U01W is the modern replacement.\u003c\/p\u003e\n\u003cp class=\"takeaway\"\u003e→ Same USB-PPS Macx-1 concept hobbyists and timing users already know—updated to M10\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"feature-grid\"\u003e\n\u003cdiv class=\"content-card\"\u003e\n\u003ch3\u003e1PPS over USB\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1PPS timing reference on the USB cable\u003c\/li\u003e\n\u003cli\u003ePresented as DCD events to the PL2303 driver\u003c\/li\u003e\n\u003cli\u003eTypically 0.5 ms host precision (about 0.5–1 ms for W-series)\u003c\/li\u003e\n\u003cli\u003eGPSD PPS compatible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"takeaway\"\u003e→ The defining difference versus GR-U01U (navigation USB without PPS-over-USB)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-card\"\u003e\n\u003ch3\u003eu-blox M10 · Multi-Constellation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConcurrent GPS, GLONASS, Galileo, BeiDou (L1)\u003c\/li\u003e\n\u003cli\u003eQZSS + SBAS (WAAS, EGNOS, MSAS, GAGAN)\u003c\/li\u003e\n\u003cli\u003eDefault 1 Hz; up to 18 Hz (GPS only)\u003c\/li\u003e\n\u003cli\u003e1.5 m horizontal (GPS + QZSS + SBAS)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"takeaway\"\u003e→ Modern L1 engine for both timing lock and navigation\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-card\"\u003e\n\u003ch3\u003eInterference \u0026amp; Spoofing Awareness\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAnti-jamming support\u003c\/li\u003e\n\u003cli\u003eRF interference detection\u003c\/li\u003e\n\u003cli\u003eSpoofing detection and reporting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"takeaway\"\u003e→ Extra resilience when the RF environment is noisy or hostile\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-card\"\u003e\n\u003ch3\u003eIndustrial USB Form Factor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e40 (W) × 45 (L) × 16 (H) mm\u003c\/li\u003e\n\u003cli\u003eIP67 waterproof · built-in magnet\u003c\/li\u003e\n\u003cli\u003eFully EMI shielded\u003c\/li\u003e\n\u003cli\u003eOperating temperature: −40°C to +85°C\u003c\/li\u003e\n\u003cli\u003e1.5 m USB Type-A cable · 5 VDC USB powered\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"takeaway\"\u003e→ Outdoor-ready mouse receiver, not a bare module\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eu-blox U-Center 2 Tool\u003c\/h2\u003e\n\u003cdiv class=\"content-card\"\u003e\n\u003cp\u003eThe GR-U01W uses the u-blox M10 chip and is fully compatible with the latest \u003cstrong\u003eu-center 2\u003c\/strong\u003e software for GNSS receiver configuration. u-blox provides user and developer documentation to support evaluation and development.\u003c\/p\u003e\n\u003cp\u003eU-center 2 is designed for u-blox M10 and F10 products. It is free from the u-blox website, and a copy is also available in the Product Resources section of this page.\u003c\/p\u003e\n\u003cdiv class=\"section-image-wrap\"\u003e\u003cimg alt=\"u-blox U-Center 2 configuration software\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2104\/5147\/files\/ucenter-2-1.png?v=1723232692\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eNavisys NaviViewerUx Tool\u003c\/h2\u003e\n\u003cdiv class=\"content-card\"\u003e\n\u003cp\u003eIn addition to U-Center 2, Navisys provides \u003cstrong\u003eNaviViewerUx\u003c\/strong\u003e for convenient configuration and diagnostics of the GR-U01W GNSS receiver.\u003c\/p\u003e\n\u003cdiv class=\"section-image-wrap\"\u003e\u003cimg alt=\"Navisys NaviViewerUx configuration tool\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2104\/5147\/files\/NaviViewerUx-1_480x480.png?v=1723232715\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eReceiver Specifications\u003c\/h2\u003e\n\u003cdiv class=\"datasheet\"\u003e\n\u003cdiv class=\"datasheet-section\"\u003e\n\u003ch3\u003eGNSS Receiver Type\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eu-blox M10 engine\u003c\/li\u003e\n\u003cli\u003eGPS, SBAS: L1 C\/A — 1575.42 MHz\u003c\/li\u003e\n\u003cli\u003eQZSS: L1 C\/A\/S — 1575.42 MHz\u003c\/li\u003e\n\u003cli\u003eGalileo: E1 B\/C — 1575.42 MHz\u003c\/li\u003e\n\u003cli\u003eGLONASS: L1OF — 1598.0625~1605.375 MHz\u003c\/li\u003e\n\u003cli\u003eBeiDou: B1I — 1561.098 MHz; B1C — 1575.42 MHz\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"datasheet-section\"\u003e\n\u003ch3\u003eAccuracy \u0026amp; Timing\u003c\/h3\u003e\n\u003ctable class=\"datasheet-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHorizontal position\u003c\/td\u003e\n\u003ctd\u003e1.5 m (GPS + QZSS + SBAS)\u003cbr\u003eCEP, 50%, 24 hr static, −130 dBm, 6+ SVs for each system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVelocity\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.05 m\/s (speed) · \u0026lt;0.3° (heading) · 50% @ 30 m\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTime pulse (chip)\u003c\/td\u003e\n\u003ctd\u003eRMS: 30 ns · 99%: \u0026lt;60 ns\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePPS over USB (host)\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eTypically 0.5 ms\u003c\/strong\u003e via USB DCD \/ PL2303\u003cbr\u003eBounded by USB polling interval; W-series about 0.5–1 ms\u003cbr\u003eOutput: 1PPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"datasheet-section\"\u003e\n\u003ch3\u003eTTFF (Time to First Fix)\u003c\/h3\u003e\n\u003ctable class=\"datasheet-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHot start\u003c\/td\u003e\n\u003ctd\u003e1 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCold start\u003c\/td\u003e\n\u003ctd\u003e28 s: GPS + GAL\u003cbr\u003e23 s: GPS + GAL + GLO\u003cbr\u003e27 s: GPS + GAL + BDS B1I (default)\u003cbr\u003e28 s: GPS + GAL + BDS B1C\u003cbr\u003e23 s: GPS + GAL + GLO + BDS B1C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"datasheet-section\"\u003e\n\u003ch3\u003eSensitivity (Autonomous)\u003c\/h3\u003e\n\u003ctable class=\"datasheet-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAcquisition\u003c\/td\u003e\n\u003ctd\u003e−148 dBm (GPS \u0026amp; Galileo or more)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTracking\u003c\/td\u003e\n\u003ctd\u003e−167 dBm (GPS \u0026amp; Galileo or more)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"datasheet-section\"\u003e\n\u003ch3\u003eMeasurement Data Output\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInterface: USB Type-A (PL2303); NMEA \/ UBX over virtual serial\u003c\/li\u003e\n\u003cli\u003eUART framing: N,8,1 · baud 4800, 9600, 19200, 38400 (default), 57600, 115200, 230400, 460800, 921600\u003c\/li\u003e\n\u003cli\u003eNMEA versions 2.1, 2.3, 4.0, 4.10, and 4.11 (default)\u003c\/li\u003e\n\u003cli\u003eUBX (u-blox proprietary)\u003c\/li\u003e\n\u003cli\u003eSentences: GGA, GLL, GSA, GSV, RMC, VTG, TXT\u003c\/li\u003e\n\u003cli\u003eDatum: WGS-84\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"datasheet-section\"\u003e\n\u003ch3\u003eNavigation Update Rate\u003c\/h3\u003e\n\u003ctable class=\"datasheet-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDefault\u003c\/td\u003e\n\u003ctd\u003e1 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGPS + GAL + GLO + BDS B1C\u003c\/td\u003e\n\u003ctd\u003e5 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGPS + GAL + BDS B1C\u003c\/td\u003e\n\u003ctd\u003e8 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGPS + GAL + BDS B1I\u003c\/td\u003e\n\u003ctd\u003e5 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGPS + GAL + GLO\u003c\/td\u003e\n\u003ctd\u003e7 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGPS + GAL\u003c\/td\u003e\n\u003ctd\u003e10 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGPS only\u003c\/td\u003e\n\u003ctd\u003e18 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"datasheet-section\"\u003e\n\u003ch3\u003eDynamics \u0026amp; Limits\u003c\/h3\u003e\n\u003ctable class=\"datasheet-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. altitude\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 80,000 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. velocity\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 500 m\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDynamics\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 4 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAugmentation\u003c\/td\u003e\n\u003ctd\u003eSBAS: WAAS, EGNOS, MSAS, GAGAN · QZSS (L1S SLAS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"datasheet-section\"\u003e\n\u003ch3\u003ePower\u003c\/h3\u003e\n\u003ctable class=\"datasheet-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower consumption\u003c\/td\u003e\n\u003ctd\u003e(29 GNSS SVs fixed for tracking)\u003cbr\u003e\u003cstrong\u003eUSB: 59 \/ 56 mA\u003c\/strong\u003e (acquisition \/ tracking)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower supply\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e5 VDC (USB)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackup power\u003c\/td\u003e\n\u003ctd\u003e3.3 V (backup battery for faster fix)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"datasheet-section\"\u003e\n\u003ch3\u003eMechanical \u0026amp; Environment\u003c\/h3\u003e\n\u003ctable class=\"datasheet-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimension\u003c\/td\u003e\n\u003ctd\u003e40 (W) × 45 (L) × 16 (H) mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e68.8 g (with 1.5 m cable and USB-A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable \/ connector\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e1.5 m USB Type-A\u003c\/strong\u003e (GR-U01W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWaterproof\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eIP67\u003c\/strong\u003e · built-in magnet · fully EMI shielded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e−40°C to +85°C (−20~60°C for backup battery)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage temperature\u003c\/td\u003e\n\u003ctd\u003e−40°C to +85°C (−40~60°C for backup battery)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cdiv class=\"content-card\"\u003e\n\u003cul\u003e\n\u003cli\u003eNavisys GR-U01W Timing \/ NTP GNSS Receiver × 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- product resource - begin --\u003e\n\u003cstyle\u003e\n  .gpsws-resources {\n    --ga-primary: #137c78;\n    --ga-primary-dark: #0f5f5c;\n    --ga-text: #1f2937;\n    --ga-muted: #5f6b7a;\n    --ga-border: #dce7e6;\n    --ga-soft: #f5fbfa;\n    --ga-card: #ffffff;\n    font-family: inherit;\n    color: var(--ga-text);\n    line-height: 1.65;\n  }\n\n  .gpsws-resources * {\n    box-sizing: border-box;\n  }\n\n  .gpsws-resources h2 {\n    margin: 42px 0 18px;\n    padding-bottom: 10px;\n    border-bottom: 2px solid var(--ga-primary);\n    color: var(--ga-primary-dark);\n    font-size: 28px;\n    line-height: 1.25;\n    font-weight: 600;\n  }\n\n  .gpsws-resources h3 {\n    margin: 0 0 14px;\n    color: var(--ga-primary-dark);\n    font-size: 21px;\n    line-height: 1.35;\n    font-weight: 600;\n  }\n\n  .gpsws-resources h4 {\n    margin: 22px 0 10px;\n    color: var(--ga-text);\n    font-size: 17px;\n    line-height: 1.4;\n    font-weight: 600;\n  }\n\n  .gpsws-resources .content-card h4:first-of-type {\n    margin-top: 4px;\n  }\n\n  .gpsws-resources a {\n    color: var(--ga-primary-dark);\n    font-weight: 400;\n    text-decoration: underline;\n    text-underline-offset: 2px;\n  }\n\n  .gpsws-resources a:hover {\n    color: var(--ga-primary);\n  }\n\n  .gpsws-resources .content-card {\n    margin: 18px 0;\n    padding: 24px;\n    border: 1px solid var(--ga-border);\n    border-radius: 16px;\n    background: var(--ga-card);\n  }\n\n  .gpsws-resources ul {\n    list-style: none;\n    margin: 0;\n    padding: 0;\n  }\n\n  .gpsws-resources li {\n    display: flex;\n    align-items: flex-start;\n    gap: 12px;\n    margin: 0;\n    padding: 12px 0;\n    border-bottom: 1px solid var(--ga-border);\n    color: var(--ga-muted);\n    font-size: 15.5px;\n    font-weight: 400;\n  }\n\n  .gpsws-resources li:last-child {\n    padding-bottom: 0;\n    border-bottom: none;\n  }\n\n  .gpsws-resources li:first-child {\n    padding-top: 0;\n  }\n\n  .gpsws-resources .resource-icon {\n    flex: none;\n    width: 28px;\n    height: 28px;\n    margin-top: 1px;\n    color: var(--ga-primary);\n  }\n\n  .gpsws-resources .resource-icon svg,\n  .gpsws-resources .resource-icon img {\n    display: block;\n    width: 28px;\n    height: 28px;\n    object-fit: contain;\n  }\n\n  .gpsws-resources .resource-body {\n    min-width: 0;\n    flex: 1;\n    line-height: 1.45;\n  }\n\n  .gpsws-resources .resource-note {\n    display: block;\n    margin-top: 4px;\n    color: var(--ga-muted);\n    font-size: 13.5px;\n  }\n\n  .gpsws-resources .resource-plain {\n    color: var(--ga-muted);\n  }\n\n  .gpsws-resources .driver-intro {\n    margin: 0 0 14px;\n    color: var(--ga-muted);\n    font-size: 15px;\n    line-height: 1.55;\n  }\n\n  @media (max-width: 749px) {\n    .gpsws-resources h2 {\n      font-size: 24px;\n    }\n\n    .gpsws-resources h3 {\n      font-size: 19px;\n    }\n\n    .gpsws-resources .content-card {\n      padding: 18px;\n    }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"gpsws-resources\"\u003e\n  \u003ch2\u003eProduct Resources\u003c\/h2\u003e\n\n  \u003cdiv class=\"content-card\"\u003e\n    \u003ch3\u003eOfficial Documents\u003c\/h3\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n        \u003cspan class=\"resource-icon\" aria-hidden=\"true\"\u003e\n          \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\n            \u003cpath d=\"M7 3.5h7l4 4V20.5a1 1 0 0 1-1 1H7a1 1 0 0 1-1-1V4.5a1 1 0 0 1 1-1z\"\u003e\u003c\/path\u003e\n            \u003cpath d=\"M14 3.5V8h4.5\"\u003e\u003c\/path\u003e\n            \u003cpath d=\"M9 12h6M9 15.5h6\"\u003e\u003c\/path\u003e\n          \u003c\/svg\u003e\n        \u003c\/span\u003e\n        \u003cspan class=\"resource-body\"\u003e\n          \u003ca href=\"https:\/\/gpswebshop-download.s3.us-east-1.amazonaws.com\/navisys\/GR-U01W_flyer-260807v3.pdf\" target=\"_blank\" rel=\"noopener\"\u003eGR-U01W Product Flyer\u003c\/a\u003e\n        \u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli\u003e\n        \u003cspan class=\"resource-icon\" aria-hidden=\"true\"\u003e\n          \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\n            \u003cpath d=\"M7 3.5h7l4 4V20.5a1 1 0 0 1-1 1H7a1 1 0 0 1-1-1V4.5a1 1 0 0 1 1-1z\"\u003e\u003c\/path\u003e\n            \u003cpath d=\"M14 3.5V8h4.5\"\u003e\u003c\/path\u003e\n            \u003cpath d=\"M9 12h6M9 15.5h6\"\u003e\u003c\/path\u003e\n          \u003c\/svg\u003e\n        \u003c\/span\u003e\n        \u003cspan class=\"resource-body\"\u003e\n          \u003ca href=\"https:\/\/www.u-blox.com\/en\/info\/u-center-2-user-guide\" target=\"_blank\" rel=\"noopener\"\u003eU-Center 2 User Guide\u003c\/a\u003e\n        \u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli\u003e\n        \u003cspan class=\"resource-icon\" aria-hidden=\"true\"\u003e\n          \u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\n            \u003cpath d=\"M7 3.5h7l4 4V20.5a1 1 0 0 1-1 1H7a1 1 0 0 1-1-1V4.5a1 1 0 0 1 1-1z\"\u003e\u003c\/path\u003e\n            \u003cpath d=\"M14 3.5V8h4.5\"\u003e\u003c\/path\u003e\n            \u003cpath d=\"M9 12h6M9 15.5h6\"\u003e\u003c\/path\u003e\n          \u003c\/svg\u003e\n        \u003c\/span\u003e\n        \u003cspan class=\"resource-body\"\u003e\n          \u003ca href=\"https:\/\/gpswebshop-download.s3.amazonaws.com\/navisys\/NaviViewerUx-Quick+Guide_240816.pdf\" target=\"_blank\" rel=\"noopener\"\u003eNaviViewerUx Quick Guide\u003c\/a\u003e\n        \u003c\/span\u003e\n      \u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"content-card\"\u003e\n    \u003ch3\u003eDownloads\u003c\/h3\u003e\n    \u003cp class=\"driver-intro\"\u003eFor Windows 10, Windows 11, Android, and Linux, native drivers are already included with the operating system. There’s no need to download or install additional drivers. Simply plug in the GNSS receiver, and it will be recognized and start working immediately.\u003c\/p\u003e\n\n    \u003ch4\u003eUSB Drivers\u003c\/h4\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n        \u003cspan class=\"resource-icon\" aria-hidden=\"true\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2104\/5147\/files\/Icon_Windows_50x55_24538254-e7c1-4315-8232-22929085d2a4.png?v=1599179040\" alt=\"\"\u003e\n        \u003c\/span\u003e\n        \u003cspan class=\"resource-body\"\u003e\n          \u003ca href=\"https:\/\/www.navisys.com.tw\/download\/PL23XX_Prolific_DriverInstaller_v408.zip\" target=\"_blank\" rel=\"noopener\"\u003eWindows Drivers\u003c\/a\u003e\n        \u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli\u003e\n        \u003cspan class=\"resource-icon\" aria-hidden=\"true\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2104\/5147\/files\/Icon_Windows_50x55_24538254-e7c1-4315-8232-22929085d2a4.png?v=1599179040\" alt=\"\"\u003e\n        \u003c\/span\u003e\n        \u003cspan class=\"resource-body\"\u003e\n          \u003ca href=\"https:\/\/www.navisys.com.tw\/download\/_IO%20Cable_PL-2303_Drivers%20-%20Generic_WinCE_PL2303_WinCE50_x86_v1009.CAB\" target=\"_blank\" rel=\"noopener\"\u003eWinCE for x86\u003c\/a\u003e\n        \u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli\u003e\n        \u003cspan class=\"resource-icon\" aria-hidden=\"true\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2104\/5147\/files\/Icon_Windows_50x55_24538254-e7c1-4315-8232-22929085d2a4.png?v=1599179040\" alt=\"\"\u003e\n        \u003c\/span\u003e\n        \u003cspan class=\"resource-body\"\u003e\n          \u003ca href=\"https:\/\/www.navisys.com.tw\/download\/_IO%20Cable_PL-2303_Drivers%20-%20Generic_WinCE_PL2303_WinCE50_ARM_v1009.CAB\" target=\"_blank\" rel=\"noopener\"\u003eWinCE for ARM\/xScale\u003c\/a\u003e\n        \u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli\u003e\n        \u003cspan class=\"resource-icon\" aria-hidden=\"true\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2104\/5147\/files\/Icon_MacOS_50x55_85ef4e50-aece-4812-bb95-92a6dff580df.png?v=1599179079\" alt=\"\"\u003e\n        \u003c\/span\u003e\n        \u003cspan class=\"resource-body\"\u003e\n          \u003ca href=\"https:\/\/www.navisys.com.tw\/download\/PL2303HXD_G_Driver_v2_0_0_20191204.zip\" target=\"_blank\" rel=\"noopener\"\u003emacOS driver\u003c\/a\u003e\n        \u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli\u003e\n        \u003cspan class=\"resource-icon\" aria-hidden=\"true\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2104\/5147\/files\/Icon_Linux_50x55_cd38dfa7-e396-4f4b-991e-030084fc84ac.png?v=1599614038\" alt=\"\"\u003e\n        \u003c\/span\u003e\n        \u003cspan class=\"resource-body\"\u003e\n          \u003ca href=\"https:\/\/www.navisys.com.tw\/download\/PL2303HXD_G_Driver_v2_0_0_20191204.zip\" target=\"_blank\" rel=\"noopener\"\u003eLinux Driver for Linux Kernel V2.6.15 to V5.4\u003c\/a\u003e\n        \u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli\u003e\n        \u003cspan class=\"resource-icon\" aria-hidden=\"true\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2104\/5147\/files\/Icon_Linux_50x55_cd38dfa7-e396-4f4b-991e-030084fc84ac.png?v=1599614038\" alt=\"\"\u003e\n        \u003c\/span\u003e\n        \u003cspan class=\"resource-body\"\u003e\n          \u003cspan class=\"resource-plain\"\u003eUSB GNSS driver already built into Linux OS 5.5 and above — no download needed\u003c\/span\u003e\n        \u003c\/span\u003e\n      \u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch4\u003eTools\u003c\/h4\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n        \u003cspan class=\"resource-icon\" aria-hidden=\"true\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2104\/5147\/files\/Icon_Windows_50x55_24538254-e7c1-4315-8232-22929085d2a4.png?v=1599179040\" alt=\"\"\u003e\n        \u003c\/span\u003e\n        \u003cspan class=\"resource-body\"\u003e\n          \u003ca href=\"https:\/\/gpswebshop-download.s3.amazonaws.com\/navisys\/u-center2-installer.exe\" target=\"_blank\" rel=\"noopener\"\u003eu-blox U-Center 2\u003c\/a\u003e\n        \u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli\u003e\n        \u003cspan class=\"resource-icon\" aria-hidden=\"true\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2104\/5147\/files\/Icon_Windows_50x55_24538254-e7c1-4315-8232-22929085d2a4.png?v=1599179040\" alt=\"\"\u003e\n        \u003c\/span\u003e\n        \u003cspan class=\"resource-body\"\u003e\n          \u003ca href=\"https:\/\/gpswebshop-download.s3.amazonaws.com\/navisys\/NaviViewerUx_v0.0.1.exe.zip\" target=\"_blank\" rel=\"noopener\"\u003eNavisys NaviViewerUx\u003c\/a\u003e\n        \u003c\/span\u003e\n      \u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"content-card\"\u003e\n    \u003ch3\u003eHow-to Articles and Blogs\u003c\/h3\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n        \u003cspan class=\"resource-icon\" aria-hidden=\"true\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2104\/5147\/files\/Blog_Icon_50x50_6f200aee-47cb-4333-9ddd-bcbb03a70813.png?v=1718590359\" alt=\"\"\u003e\n        \u003c\/span\u003e\n        \u003cspan class=\"resource-body\"\u003e\n          \u003ca href=\"https:\/\/community.gpswebshop.com\/2022\/05\/04\/how-to-connect-a-gps-gnss-receiver-to-google-earth-on-windows\/\" target=\"_blank\" rel=\"noopener\"\u003eHow to connect a GPS\/GNSS Receiver to Google Earth on Windows?\u003c\/a\u003e\n        \u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli\u003e\n        \u003cspan class=\"resource-icon\" aria-hidden=\"true\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2104\/5147\/files\/Blog_Icon_50x50_6f200aee-47cb-4333-9ddd-bcbb03a70813.png?v=1718590359\" alt=\"\"\u003e\n        \u003c\/span\u003e\n        \u003cspan class=\"resource-body\"\u003e\n          \u003ca href=\"https:\/\/community.gpswebshop.com\/2021\/06\/13\/how-to-connect-an-usb-gps-receiver-to-a-linux-computer\/\" target=\"_blank\" rel=\"noopener\"\u003eHow to connect a USB GPS receiver to a Linux computer?\u003c\/a\u003e\n        \u003c\/span\u003e\n      \u003c\/li\u003e\n      \u003cli\u003e\n        \u003cspan class=\"resource-icon\" aria-hidden=\"true\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2104\/5147\/files\/Blog_Icon_50x50_6f200aee-47cb-4333-9ddd-bcbb03a70813.png?v=1718590359\" alt=\"\"\u003e\n        \u003c\/span\u003e\n        \u003cspan class=\"resource-body\"\u003e\n          \u003ca href=\"https:\/\/community.gpswebshop.com\/2021\/05\/17\/how-to-connect-an-usb-gps-receiver-with-an-android-device\/\" target=\"_blank\" rel=\"noopener\"\u003eHow to connect a USB GPS receiver with an Android device?\u003c\/a\u003e\n        \u003c\/span\u003e\n      \u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"content-card\"\u003e\n    \u003ch3\u003eTech Support Topics and Forums\u003c\/h3\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n        \u003cspan class=\"resource-icon\" aria-hidden=\"true\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2104\/5147\/files\/Forum_Icon_50x50_53d52b54-2058-404d-af98-87b66350718b.png?v=1718590354\" alt=\"\"\u003e\n        \u003c\/span\u003e\n        \u003cspan class=\"resource-body\"\u003e\n          \u003ca href=\"https:\/\/community.gpswebshop.com\/tech-support\/topic\/how-to-change-the-update-rate-of-a-navisys-gr-u01-u-blox-m10-gnss-receiver-using-u-center-2\/\" target=\"_blank\" rel=\"noopener\"\u003eHow to change the Update Rate of a Navisys GR-U01 (u-blox M10) GNSS Receiver?\u003c\/a\u003e\n        \u003c\/span\u003e\n      \u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- product resource - end --\u003e\n","brand":"Navisys","offers":[{"title":"Default Title","offer_id":49338089636148,"sku":null,"price":89.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2104\/5147\/files\/ublox-navisys-shell-standard-usb.png?v=1773542472","url":"https:\/\/gpswebshop.com\/products\/navisys-gr-u01w-usb-pps-timing-gnss-gpsd-ntp-ready-0-5-ms","provider":"GPSWebShop","version":"1.0","type":"link"}