FM, ADS-B & APRS Receivers with This RF Kit
Research-Grade RF Signal Processing with GNU Radio and RTL-SDR
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Transform 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.
What You'll Build
A 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.
What You'll Learn
- Configure an RTL-SDR front-end and stream IQ samples into GNU Radio on a Raspberry Pi
- Design a wideband FM demodulator: frequency translation, low-pass filtering, and quadrature demodulation
- Implement Mode-S preamble detection, bit-slicing, and CRC-validated ADS-B frame extraction
- Build an APRS receiver: AFSK 1200 demodulation, NRZI decoding, and AX.25 packet parsing
Kit Contents
| Component | Quantity |
|---|---|
| Raspberry Pi 4 Model B 8GB | 1 |
| RTL-SDR Dongle | 1 |
| Wideband Antenna | 1 |
| VHF Antenna | 1 |
| MicroSD Card 64GB | 1 |
| USB-C PSU | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
Designed 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.
Built and Backed by Compoden
Every 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.
What if I get stuck during the build?
The AI companion walks you through each step; if you need human help, our support team replies within hours on WhatsApp.
Can I use this kit for a college project or research paper?
Absolutely. 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.
Is GNU Radio experience required?
Some 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.
What software comes on the SD card?
The 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.
RTL-SDR captures FM, ADS-B and APRS - GNU Radio implements full demodulation pipelines for each protocol.
What's in this kit
- Raspberry Pi 4 Model B 8GB
- RTL-SDR Dongle
- Wideband Antenna
- VHF Antenna
- MicroSD Card 64GB
- USB-C PSU
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items