{"product_id":"rtl-sdr-gnu-radio-spectrum-analyser-kit-real-time-rf-for-raspberry-pi-4","title":"RTL-SDR GNU Radio Spectrum Analyser Kit - Real-Time RF for Raspberry Pi 4","description":"\u003ch1\u003eRTL-SDR GNU Radio Spectrum Analyser Kit - Real-Time RF for Raspberry Pi 4\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 Spectrum analysis and signal processing\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eTurn a Raspberry Pi 4 and an RTL-SDR dongle into a professional-grade spectrum analyser covering 24 MHz to 1.7 GHz. This kit equips engineering students, researchers, and RF enthusiasts with a hands-on tool for real-time wireless signal visualisation, interference hunting, and communication system analysis - essential for advanced lab coursework, capstone projects, and hackathon prototyping.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Build\u003c\/h2\u003e\n\u003cp\u003eA GNU Radio-powered software-defined radio that plots live frequency spectra, demodulates common signals, and logs data for lab reports. The analyser's Python integration lets you automate measurements, perfect for RF testing, antenna characterisation, and wireless protocol debugging. The finished build runs entirely on the Pi 4 with a responsive touchscreen interface.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Learn\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eConfigure GNU Radio flowgraphs for real-time FFT processing and waterfall displays\u003c\/li\u003e\n  \u003cli\u003eCalibrate an RTL-SDR receiver and optimise gain settings for wideband scanning\u003c\/li\u003e\n  \u003cli\u003eWrite Python scripts to control SDR and plot time-varying spectrum data\u003c\/li\u003e\n  \u003cli\u003eAnalyse ISM band signals, FM broadcast, and cellular downlink activity as lab exercises\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 4GB\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\u003eMicroSD Card 32GB\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\u003eB.Tech ECE and EEE students in their third or fourth year will use this kit to master wireless communications and digital signal processing labs. Smart India Hackathon teams building RF-based solutions rely on the real-time analyser to validate designs under pressure. Research assistants at IITs, NITs, and VIT find it a practical alternative when a full-fledged lab instrument is unavailable, and ATL college extension clubs adopt it for advanced workshops.\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\u003eYour kit includes a QR code that opens an AI build companion trained on this exact project, plus WhatsApp support from our Bengaluru team. Most issues are resolved in minutes.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes this kit require any additional software or licences?\u003c\/summary\u003e\u003cp\u003eNo. The SD card comes pre-installed with Raspberry Pi OS, GNU Radio, and all dependencies. Every tool is open-source and free, ready to run the moment you boot.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat frequency range does the spectrum analyser cover?\u003c\/summary\u003e\u003cp\u003eWith the included wideband antenna, you can scan continuously from 24 MHz to 1.7 GHz, covering FM broadcast, aircraft band, ISM 2.4 GHz, and many cellular downlinks. The RTL-SDR's sensitivity is maximised across this range.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I use this kit for my college lab submissions or hackathon projects?\u003c\/summary\u003e\u003cp\u003eAbsolutely. The kit generates publishable waterfall plots, FFT spectra, and data logs, making it ideal for lab reports and demo tables. It has been used by students from IIT Bombay, NIT Trichy, and VIT Vellore for exactly such submissions.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdiv class=\"kit-description\"\u003e\n  \u003cp\u003eRTL-SDR and GNU Radio on Pi 4 build a real-time spectrum analyser from 24MHz to 1.7GHz.\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 4GB\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003eRTL-SDR Dongle\u003c\/li\u003e\n    \u003cli\u003eWideband Antenna\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/microsd-card-reader-spi-module-for-arduino\"\u003eMicroSD Card 32GB\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 17 SDR Spectrum Analyser?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Research Lab Kit 17 SDR Spectrum Analyser includes all components needed: Raspberry Pi 4 Model B 4GB, RTL-SDR Dongle, Wideband Antenna, MicroSD Card 32GB, USB-C PSU 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 17 SDR Spectrum Analyser?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This kit is designed for Advanced level makers, suitable for ages 18-25. RTL-SDR and GNU Radio on Pi 4 build a real-time spectrum analyser from 24MHz to 1.7GHz. Estimated build time is 6-8 hrs.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I buy the Research Lab Kit 17 SDR Spectrum Analyser online in India?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, the Research Lab Kit 17 SDR Spectrum Analyser is available online at Compoden (compoden.in), India's AI-powered electronics and robotics store. 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