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Baluns on Log Periodic Antennas - Some antenna manufacturers place baluns at the incorrect location in LPDA arrays, or tell you to route the cable incorrectly. This can cause substantial RFI and all sorts of weird problems like RF into house wiring.

Low-Cost dipole for QRP - Here’s an economical dipole for simple QRP HF homebrew rigs.

VK9NA Norfolk Island - K9NA Norfolk Island - Locator: RG30xx VHF/UHF/Microwave dxpedition, 9th -19th January 2011

M0XPD's Shack Nasties - Homebrew, QRP, Beacons & Diplomatic / Spy Radio

Michigan Police Radio Scanner - Public Safety Communications from Gaylord, MI and Surrounding Areas

Cobham Microwave Priority listing - Cobham Microwave has a long term experience in Microwave Systems and Components. Their five areas of capabilities are Systems and Components: Diodes & Modules, Ferrite Devices, RF Filters, and Waveguides.

Cloud RF - Web VHF/UHF planning  ^updated - Web based VHF-UHF RF planning powered by SPLAT! and Google Maps. Access via website, Android App or dynamic Google Earth interface.

Small Antennas for High Frequencies - This is about Small Antenna types and their properties which can help choosing proper antenna for high-frequency wireless communications as: two-way radio, microwave short links, repeaters, radio beacons or wireless telemetry

Installation of FT817 RF Speech Clipper by DF4ZS  ^updated - Installation of FT817 RF Speech Clipper into Yaesu's MH-36 DTMF Microphone

RF Speech Clipper for Yaesu MH-31 - RF Speech Clipper into Yaesu's MH-31 Standard Microphone

Scan Radio NSW - Radio scanner frequencies for nsw

AXUSE - Distribute Coax Cables and Connectors for VHF UHF and Microwave

ASAP Electronic Component Distributors - ASAP Semiconductor is a premier source for all long lead-time, hard to find, and obsolete components.

Fairview Microwave Inc - Supplier of RF, Microwave, & Wireless passive coaxial components, including Coaxial Attenuators, Adapters, Cables, DC Blocks, Terminations, & Connectors

ASAP Semiconductor - Electronic Component Distributor – ASAP Semiconductor is wholesale electronic component distributor in USA. We supply all types of electronic components like semiconductors, capacitors, resistors, diodes and many more.

Cassiopeia Consulting - Ham radio dealer for microham products in Czech Republic

MicroMUF - MicroMUF is a windows free HF propagation calculator that you can use to estimate the MUF (Maximum Usable Frequency) and LUF (Lowest Usable Frequency) between any two points on the Earth.

tk7 Software for the ICOM IC-Q7 - tk7 is open source software designed for the ICOM IC-Q7 walkie-talkie. Though tk7 is intended chiefly for Linux, MacOS X, and BSD users, it will work on Microsoft Windows too.

WinradHD - WinradHD is a Software Defined Radio (SDR) freeware application by DG0JBJ for Microsoft Windows 2000/XP/Vista/7 and based on the open source code of Winrad, written by I2PHD.

DX Hunter Priority listing - The first and only iPhone DX-hunting app for iPhone, iPod touch and iPad

Homemade Antenna Rotator Controller - The Antenna Rotator Controller is unique in that it senses, displays, and controls to the earth’s true magnetic field. The compass sensor, mounted in a waterproof enclosure, is attached to the mast and sends its signal to a microcontroller. By kg4jjh

Yaesu DSP Settings for Heil Microphones - To achieve maximum audio quality it is important to adjust the DSP settings of your transmitter when using Heil microphones.

The Milli Beacon - This page describes an cheap RF signal source, a portable micro beacon, using a low cost temperature controlled crystal oscillator

National Semiconductor - National Semiconductor Corporation, component database

Panadaptors - History of panoramic radio spectrographs, or radio spectroscope