{"product_id":"fm-ads-b-and-aprs-receivers-with-this-rf-kit","title":"FM, ADS-B \u0026 APRS Receivers with This RF Kit","description":"\u003ch1\u003eResearch-Grade RF Signal Processing with GNU Radio and RTL-SDR\u003c\/h1\u003e\n\n\u003cp class=\"value-summary\"\u003eEvery part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.\u003c\/p\u003e\n\n\u003cdiv class=\"specs-strip\"\u003e\n  \u003cspan\u003e\u003cstrong\u003eDifficulty:\u003c\/strong\u003e Advanced\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eBuild Time:\u003c\/strong\u003e 6-8 hours\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eAge:\u003c\/strong\u003e 18-25\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eSkill:\u003c\/strong\u003e RF demodulation pipeline design\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eTransform a Raspberry Pi into a multi-purpose software-defined radio receiver. This kit puts raw RF spectrum into your hands, guiding you to build complete FM broadcast, ADS-B aircraft tracking, and APRS amateur radio demodulation chains entirely within GNU Radio. No black-box hardware decoders - you will write the flowgraphs that extract bits from the air.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Build\u003c\/h2\u003e\n\u003cp\u003eA fully functional SDR workstation. You will capture live FM stations with a frequency-modulation demodulator, plot real-time ADS-B messages on a map by parsing Mode-S packets from 1090 MHz, and decode APRS position reports from 144.390 MHz using an AX.25 protocol stack. Each pipeline is built from scratch in GNU Radio Companion, giving you permanent skills that transfer to any custom RF sensing project.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Learn\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eConfigure an RTL-SDR front-end and stream IQ samples into GNU Radio on a Raspberry Pi\u003c\/li\u003e\n  \u003cli\u003eDesign a wideband FM demodulator: frequency translation, low-pass filtering, and quadrature demodulation\u003c\/li\u003e\n  \u003cli\u003eImplement Mode-S preamble detection, bit-slicing, and CRC-validated ADS-B frame extraction\u003c\/li\u003e\n  \u003cli\u003eBuild an APRS receiver: AFSK 1200 demodulation, NRZI decoding, and AX.25 packet parsing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eKit Contents\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRaspberry Pi 4 Model B 8GB\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRTL-SDR Dongle\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWideband Antenna\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eVHF Antenna\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMicroSD Card 64GB\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eUSB-C PSU\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhy Buy This Kit Instead of Sourcing Parts Separately\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFactor\u003c\/th\u003e\n\u003cth\u003eSourcing Separately\u003c\/th\u003e\n\u003cth\u003eCompoden Kit\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCompatibility checks\u003c\/td\u003e\n\u003ctd\u003eYou verify every part\u003c\/td\u003e\n\u003ctd\u003ePre-tested as a system\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBuild support\u003c\/td\u003e\n\u003ctd\u003eForums and scattered tutorials\u003c\/td\u003e\n\u003ctd\u003eAI companion trained on this exact project\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTime to first working build\u003c\/td\u003e\n\u003ctd\u003eDays of debugging\u003c\/td\u003e\n\u003ctd\u003eHours, with step-by-step guidance\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eShipping coordination\u003c\/td\u003e\n\u003ctd\u003eMultiple sellers, multiple delays\u003c\/td\u003e\n\u003ctd\u003eOne shipment from Bengaluru in 3-5 days\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWho This Kit Is For\u003c\/h2\u003e\n\u003cp\u003eDesigned for B.Tech ECE\/EEE students tackling communication systems lab work or final-year projects, Smart India Hackathon teams prototyping RF solutions, and research scholars at IIT\/NIT\/VIT\/BITS setting up a quick SDR testbed. Amateur radio operators building a portable APRS iGate and hobbyists exploring the radio spectrum will also find this kit immediately productive.\u003c\/p\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery Compoden kit ships with an AI build companion trained on this exact project - accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eWhat if I get stuck during the build?\u003c\/summary\u003e\u003cp\u003eThe AI companion walks you through each step; if you need human help, our support team replies within hours on WhatsApp.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I use this kit for a college project or research paper?\u003c\/summary\u003e\u003cp\u003eAbsolutely. The kit is designed as a research-grade baseband pipeline you can extend - many students cite it for ADS-B multilateration or APRS digipeater implementations.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs GNU Radio experience required?\u003c\/summary\u003e\u003cp\u003eSome familiarity with Python or block-based programming helps, but the pre-configured SD card and AI guidance allow even motivated beginners to complete all three demodulators in a weekend.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat software comes on the SD card?\u003c\/summary\u003e\u003cp\u003eThe 64GB card ships with Raspberry Pi OS, GNU Radio, RTL-SDR drivers, and auxiliary tools pre-installed and tested - plug in and begin the first FM receiver within 30 minutes.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdiv class=\"kit-description\"\u003e\n  \u003cp\u003eRTL-SDR captures FM, ADS-B and APRS - GNU Radio implements full demodulation pipelines for each protocol.\u003c\/p\u003e\n  \u003ch4\u003eWhat's in this kit\u003c\/h4\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/industrial-ph-sensor-module-for-arduino-esp32-raspberry-pi\"\u003eRaspberry Pi 4 Model B 8GB\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003eRTL-SDR Dongle\u003c\/li\u003e\n    \u003cli\u003eWideband Antenna\u003c\/li\u003e\n    \u003cli\u003eVHF Antenna\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/microsd-card-reader-spi-module-for-arduino\"\u003eMicroSD Card 64GB\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/raspberry-pi-4-official-power-supply-5v-3a-usb-c-compoden\"\u003eUSB-C PSU\u003c\/a\u003e\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is included in the Research Lab Kit 22 RF Signal Processing GNU Radio?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Research Lab Kit 22 RF Signal Processing GNU Radio includes all components needed: Raspberry Pi 4 Model B 8GB, RTL-SDR Dongle, Wideband Antenna, VHF Antenna, MicroSD Card 64GB and more. Everything is pre-tested for compatibility and shipped from Bengaluru, India.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What skill level is required for the Research Lab Kit 22 RF Signal Processing GNU Radio?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This kit is designed for Advanced level makers, suitable for ages 18-25. RTL-SDR captures FM, ADS-B and APRS - GNU Radio implements full demodulation pipelines for each protocol. Estimated build time is 6-8 hrs.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I buy the Research Lab Kit 22 RF Signal Processing GNU Radio online in India?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, the Research Lab Kit 22 RF Signal Processing GNU Radio is available online at Compoden (compoden.in), India's AI-powered electronics and robotics store. 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