{"product_id":"kit-research-lab-kit-5-rf-signal-processing","title":"Research Lab Kit 5 RF Signal Processing","description":"\u003ch1\u003eDemodulate Real-World RF Protocols — Research Lab Kit 5 with RTL-SDR \u0026amp; GNU Radio\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 hrs\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eAge:\u003c\/strong\u003e 18-25\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eSkill:\u003c\/strong\u003e Software-defined radio signal processing\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eTurn a Raspberry Pi 4 and an RTL-SDR dongle into a multi-protocol RF receiver that captures live FM broadcasts, tracks aircraft via ADS-B transponders, and decodes amateur radio APRS packets. This kit replaces scattered component orders with a single, fully compatible system that lets you build complete GNU Radio demodulation pipelines for three distinct protocols — ideal for lab coursework, research projects, and competitive engineering challenges in India.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Build\u003c\/h2\u003e\n\u003cp\u003eYou’ll construct a working RF signal processing station that uses the RTL-SDR as a wideband receiver, feeding IQ samples into GNU Radio Companion on a Raspberry Pi 4. The final build demodulates and displays FM audio, plots real-time aircraft positions from ADS-B messages, and prints decoded APRS location and weather beacons from nearby VHF amateur transmissions — all from the same physical setup.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Learn\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eDesign GNU Radio flowgraphs for FM, AM, and digital demodulation\u003c\/li\u003e\n  \u003cli\u003eCapture and process raw IQ data from an RTL-SDR across 24–1766 MHz\u003c\/li\u003e\n  \u003cli\u003eImplement an ADS-B decoder to extract aircraft callsign, altitude, and position\u003c\/li\u003e\n  \u003cli\u003eDecode AX.25 frames used in APRS to interpret amateur radio telemetry\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 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 and research scholars working on RF communication, embedded systems, or signal processing projects. It aligns with final-year project requirements, Smart India Hackathon problem statements related to radio monitoring, and advanced lab courses at IITs, NITs, VIT, and BITS Pilani. Instructors can use it to demonstrate real modulation schemes in classroom settings.\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\n  \u003csummary\u003eWhat if I get stuck during the build?\u003c\/summary\u003e\n  \u003cp\u003eScan the QR code to start a chat with the AI companion, which understands every component and step of this exact RF kit. It can debug flowgraph errors, suggest antenna placement, and if needed, our team responds within hours on WhatsApp.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003eCan I use this kit to receive signals other than FM, ADS-B, and APRS?\u003c\/summary\u003e\n  \u003cp\u003eAbsolutely. The RTL-SDR covers 24–1766 MHz, and with GNU Radio you can add new flowgraphs for POCSAG pagers, ACARS, AIS, and even NOAA weather satellites by substituting a suitable antenna. The kit provides the core, and the AI companion can help adapt it.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003eIs the included VHF antenna sufficient for APRS reception in India?\u003c\/summary\u003e\n  \u003cp\u003eYes, it is tuned for the 144–148 MHz amateur band where APRS operates. In urban areas, nearby digipeaters and weather stations are easily copied; for rural locations, the antenna’s gain is adequate with a clear line of sight.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003eWill I be able to track flights over my location with ADS-B?\u003c\/summary\u003e\n  \u003cp\u003eThe wideband antenna and dongle reliably receive 1090 MHz Mode-S\/ADS-B transmissions, covering a typical radius of 100–250 km depending on altitude. You’ll see aircraft positions, flight numbers, and altitudes plotted in real time using open-source tools like dump1090.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdiv class=\"kit-description\"\u003e\n  \u003cp\u003eRTL-SDR captures FM, ADS-B and APRS signals — GNU Radio implements 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 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 5 RF Signal Processing?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Research Lab Kit 5 RF Signal Processing includes all components needed: Raspberry Pi 4 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 5 RF Signal Processing?\",\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 signals — GNU Radio implements 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 5 RF Signal Processing online in India?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, the Research Lab Kit 5 RF Signal Processing is available online at Compoden (compoden.in), India's AI-powered electronics and robotics store. 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