{"product_id":"rtl-sdr-blog-v4-usb-software-defined-radio-dongle","title":"RTL-SDR Blog V4 — USB Software Defined Radio Dongle","description":"\u003cp\u003eThe RTL-SDR Blog V4 is the definitive entry-level software defined radio receiver. Plug it into a USB port, install SDR# or SDR++, and begin receiving signals from aircraft transponders (ADS-B), weather satellites (NOAA APT), FM\/AM radio, shortwave broadcasts, and amateur radio bands — all without any hardware modifications.\u003c\/p\u003e\u003cp\u003eThe V4 incorporates a redesigned front-end with an integrated bias-tee (500mA), improved filtering, and a new direct-sampling mode for HF reception down to the AM broadcast band without an upconverter. The upgraded clock crystal delivers significantly lower drift than generic RTL dongles, making it suitable for DMR decoding and other precision applications.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFrequency range: 500kHz–1766MHz (direct sampling + normal mode)\u003c\/li\u003e\n\u003cli\u003eSample rate: up to 3.2 MSPS (2.56 MSPS stable)\u003c\/li\u003e\n\u003cli\u003eIntegrated 4.5V bias-tee (software switchable)\u003c\/li\u003e\n\u003cli\u003eHF direct sampling mode (500kHz–28.8MHz)\u003c\/li\u003e\n\u003cli\u003eTCXO clock for improved frequency stability\u003c\/li\u003e\n\u003cli\u003eSMA female antenna connector\u003c\/li\u003e\n\u003cli\u003eIncludes dipole antenna kit and R820T2 tuner\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Golden Physics Project","offers":[{"title":"Default Title","offer_id":54186573136164,"sku":"GPP-RTL-SDR-V4","price":39.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/2879\/9524\/files\/amzn_v4_with_antenna_main_webstore.jpg?v=1780551861","url":"https:\/\/shop.goldenphysics.org\/products\/rtl-sdr-blog-v4-usb-software-defined-radio-dongle","provider":"Golden Physics Project","version":"1.0","type":"link"}