{"product_id":"garmin-010-01199-00-gpsmap-64-worldwide-with-high-sensitivity-gps-and-glonass-receiver","title":"Garmin 010-01199-00 GPSMAP 64 Worldwide with High-Sensitivity GPS and GLONASS Receiver","description":"\u003cp\u003eGarmin GPSMAP 64 worldwide handheld GPS uses dual GPS and GLONASS satellite reception for improved position accuracy compared to single-constellation GPS alone — particularly in the challenging conditions (dense tree canopy, canyon walls, steep hillsides) where single-GPS receivers lose satellite geometry and positioning accuracy degrades. The GPSMAP 64 is the base platform of Garmin's professional-grade handheld GPS line, offering the same rugged field-ready construction as the 64s and 64sx at a lower price point for users who don't require the altimeter and compass accessories.\u003c\/p\u003e\n\n\u003ch2\u003eGPS + GLONASS for Field Accuracy\u003c\/h2\u003e\n\u003cp\u003eGPS uses 31 US-operated satellites; GLONASS uses 24 Russian-operated satellites in different orbital planes. Using both constellations simultaneously provides more satellites visible from any position — better orbital geometry, faster position acquisition, and more accurate positioning in environments where some satellites are occluded by terrain or vegetation. In heavy forest hunting terrain and narrow river valleys where single-GPS accuracy degrades to 10-15 meters, dual constellation positioning typically maintains 3-5 meter accuracy.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eGPS + GLONASS dual constellation — more satellites visible in challenging terrain\u003c\/li\u003e\n\u003cli\u003eHigh-sensitivity receiver — acquires signal under canopy and in canyons\u003c\/li\u003e\n\u003cli\u003e16-hour battery life on 2 AA batteries — extended use on field batteries\u003c\/li\u003e\n\u003cli\u003eWorldwide base map — basic navigation on any continent\u003c\/li\u003e\n\u003cli\u003eMicrosd expansion — add TopoActive or City Navigator maps for detailed navigation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAdding Maps to the GPSMAP 64\u003c\/h2\u003e\n\u003cp\u003eThe GPSMAP 64 includes a worldwide base map with basic roads and coastlines — sufficient for rough navigation but lacking the topographic detail that backcountry use requires. Add detailed maps via microSD card: Garmin's TopoActive North America ($30-99 depending on region coverage) provides the contour lines, trail network, and terrain detail that turns the 64 into a full backcountry navigation tool. Purchase maps through Garmin's website or pre-loaded microSD from outdoor retailers.\u003c\/p\u003e","brand":"Garmin","offers":[{"title":"Default Title","offer_id":52515291791636,"sku":"PPO-B00HWL9AR4","price":395.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/6614\/2996\/files\/71UyniPIf6L._AC_SL1500.jpg?v=1779088848","url":"https:\/\/peakperformanceoutfitters.com\/products\/garmin-010-01199-00-gpsmap-64-worldwide-with-high-sensitivity-gps-and-glonass-receiver","provider":"Peak Performance Outfitters","version":"1.0","type":"link"}