Meet the HackRF Pro from Great Scott Gadgets. This powerful successor to the HackRF One features a 100 kHz to 6 GHz range, built-in TCXO, and USB-C for advanced SDR development
VHF/UHF
The VHF/UHF section concentrates on 6 m, 2 m, 70 cm, and nearby bands, covering everything from FM repeaters and local chat to satellite, ISS, and experimenter‑friendly projects. You’ll find DIY antennas like full‑wave loops, bi‑square designs, Super J‑poles, collinears, hotel antennas, and compact mobile whips, as well as small transmitters, preamps, and SDR‑based handhelds suited for these frequencies.
Articles emphasise gain, pattern control, and practical mounting options so that your handheld, mobile, or base rig can make the most of limited height and cluttered surroundings. Many builds are optimised for simple materials such as copper wire, aluminium tubing, and PVC, making them easy weekend projects. Start here if you want stronger repeater coverage, better simplex range, or a more capable VHF/UHF station for both local and experimental work
APRS.Chat : The Modern Mailbox for Your APRS Callsign
APRS.Chat is a web-based mailbox for APRS users, storing all your messages even when your radio is offline. Reliable, modern APRS communication.
Tiny FM Transmitter with Just a Few Easy-to-Find Components
Learn how to build a compact Tiny FM transmitter using 2N3904, a few passive parts, and a simple air-core coil. Perfect for DIY electronics enthusiasts
Build a Miniature FM Transmitter – DIY Electronics Project
Learn how to build a compact, high-sensitivity Miniature FM Transmitter with this DIY electronics guide. Featuring a simple transistor-based schematic and an electret microphone, this project is perfect for beginners exploring RF circuits and wireless audio.
DIY 3-Transistor FM Bug Transmitter Using Piezo Mic
Build a high-sensitivity DIY 3-Transistor FM Bug Transmitter using a piezo microphone. This step-by-step guide includes a stable schematic, BC547 transistor tips, and frequency tuning advice for crystal-clear long-range audio monitoring.
Simple FM Transmitter Using BC547 Transistors
If you’re a radio electronics enthusiast or hobbyist, building a Simple FM transmitter using readily available components like BC547 transistors can be both fun and educational. This compact circuit transmits voice signals captured via an electret microphone to a standard FM radio receiver, making it perfect for short-range audio transmission projects. Simple FM Transmitter – […]
Build Your Own 90MHz Crystal Controlled FM Transmitter
A crystal controlled FM transmitter is a radio frequency (RF) circuit that uses a quartz crystal oscillator to generate a stable, precise frequency for FM radio transmission. Unlike simple LC oscillator circuits, crystal-controlled transmitters offer superior frequency stability and accuracy, making them ideal for applications requiring consistent performance.
Build a Simple FM Band Transmitter Circuit
Are you interested in radio electronics? This simple FM band transmitter circuit offers an excellent starting point for beginners and hobbyists. You can build this transmitter using common electronic components and start broadcasting on the FM band.
Mini FM Radio Transmitter
Have you ever wanted to broadcast your voice, even just a little bit? Well, now you can! This circuit diagram shows you how to build a simple FM Radio Transmitter . It’s a fun project, and it uses only a few basic parts.
Ribless Programming cable for Motorola GM360/GM338 radio
This article explains how to build a low-cost ribless programming cable for Motorola GM360, GM338, and GM300 radios. It uses a USB-to-TTL adapter, RJ45 connector, and a diode to enable direct serial communication without a RIB unit. The guide covers wiring, setup, and software configuration for reliable radio programming.