$30
$50
TORUN is now offering the KV4P HT DIY Kit, making it easier than ever to build your own off-grid communication solution. With a simple assembly process and only a few components to solder, you can enjoy the freedom of ham radio without the complexity of traditional handheld radios.
Transform Your Android Phone into a Fully-Functional VHF Radio!
The KV4P HT is a revolutionary homebrew VHF radio that allows your Android smartphone to communicate over voice and text completely off-grid. Designed for licensed amateur radio operators (Technician class and above), this open-source radio connects directly via USB-C, turning your phone into a powerful handheld transceiver.
TORUN is now offering the KV4P HT DIY Kit, making it easier than ever to build your own off-grid communication solution. With a simple assembly process and only a few components to solder, you can enjoy the freedom of ham radio without the complexity of traditional handheld radios.
✅ Pre-soldered PCB (SMD & SMA connector installed)
✅ ESP32 Module (Pre-loaded firmware)
✅ SA818 module
✅ 3D-Printed Case
✅ USB-C to USB-C Cable
🔹 Affordable & DIY-Friendly – Build with minimal soldering required.
🔹 Off-Grid Communication – No internet, no cell network – 100% ham radio.
🔹 Clear Digital Audio – 22kHz 8-bit ADC/DAC with filters & squelch.
🔹 APRS Messaging – Send & receive text messages just like SMS.
🔹 Smartphone Integration – Scan channels, configure settings, and use advanced features via the Android app.
🔹 No Battery Needed – Runs off your phone’s power – lightweight & always ready.
🔹 Compact & Portable – Perfect for your go-bag, car, or emergency kit.
🔹 1W Transmit Power – Covers miles while conserving your phone’s battery.
🔹 Accessibility Options – Live closed captions, sticky PTT, haptic feedback.
✅ Fully Open Source – Hardware, firmware, app, and 3D print files (GPL3 licensed).
✅ Compact & Lightweight – Pocket-sized design with no internal battery to charge.
✅ Ideal for Preppers & Ham Radio Enthusiasts – Reliable, off-grid VHF communication.
The KV4P HT DIY Kit is an open-source project that you build yourself. It comes with no warranty or guarantees on functionality or reliability. However, it's a fun, rewarding project for anyone passionate about amateur radio!