Build a compact dual-band FBK sleeve antenna for VHF/UHF bands from coax cable. Simple, efficient, and ideal for portable ham radio use.
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
High Gain Collinear Antenna for 145 MHz and 433 MHz Bands
Learn to build a 145 MHz/433 MHz collinear antenna with 0.64λ radiators, 0.25λ phasing stub, and direct 50 Ω feed for compact high-gain VHF/UHF stations
Popovic Dual Band Antenna for 2m and 70cm Bands
Build the Popovic dual band antenna for 2m and 70cm bands — a simple, efficient DIY VHF/UHF antenna with excellent SWR, omnidirectional pattern, and easy home construction
Pocket SI4735 Dual Core Decoder – Latest Firmware Elevates ats Mini Radio
Pocket SI4735 Dual Core Decoder firmware upgrade adds 400 kHz waterfall, improved SSB/CW/RTTY decoding, and faster scanning — transforming the ATS Mini into a powerful DSP pocket receiver.
kv4p HT project -Turning Your Android Phone Into a Ham Radio
KV4P-HT turns an Android phone into a VHF/UHF ham radio via USB-C — an open-source ESP32 + SA818 transceiver add-on with APRS messaging, 1 W output, and fully off-grid operation
Quansheng UV-K5/UV-K6 Radios Get New MCU, Firmware Risks
New Quansheng UV-K5/UV-K6 radios use a PY32 MCU incompatible with STM32 firmware — flashing custom firmware can brick the radio, making MCU identification critical before updates
145 MHZ Delta Loop VHF Antenna
Build your own Delta Loop VHF antenna for 145 MHz with our clear diagram, dimensions, instructions, explains construction, feed point, and tuning tips.
Hydra SDR RFOne Faces Criticism Over Performance Issues
The Hydra SDR RFOne, a highly anticipated software-defined radio (SDR) receiver, has been facing criticism from users and experts alike due to persistent performance issues. Despite its promising features and capabilities, the device has been plagued by problems that have left many disappointed. HydraSDR RFOne has been met with criticism primarily regarding potential gain issues, […]
How to Receive Stunning Weather Images from Meteor-M2 Satellites
Learn how to receive high-resolution LRPT weather images from Meteor-M2 satellites using an RTL-SDR, 137 MHz antenna, and SatDump decoder. Complete guide covering pass prediction, signal reception, and image decoding for satellite enthusiasts
DIY Active Antenna: Boost Weak HF/VHF Signals
DIY Active Antenna for superior HF and VHF reception! This DIY electronics project amplifies weak signals to lift hard-to-hear broadcasts out of the noise