dc wattmeter

Delta Loop for HF - Planning delta loops antenna for HF bands by W5SDC

Trap dipole for WARC bands - Diamond W8010 Multiband Dipole Modifications

Tuning HF antenna Traps - Tuning HF Coaxial Antenna Traps

A Variable Base-Loading-Coil - A Variable Base-Loading-Coil for use under a HF Mobile Whip

Homemade Loaded Coil Dipole - Homemade Loaded Coil Dipole ( w8010 diamond ) for 10, 15, 20, 40 and 80 meter

HF Field Day Antenna Ideas - Homebrewing portable antennas for field day operations

Squid Pole Mounting for Field Days - Supporting wire antennas with squid poles

HF Field Day Antenna Ideas - Have you ever thought of setting up a portable HF station for an activity ?

Museum of Broadcasting - The Museum of Broadcasting houses one of the world's finest collections of antique radio, television, and broadcast equipment

9M0L Spratly Isl 2012 - 9M0L 9M0 Spratly Is Layang-Layang DX Pedition 10-24 April 2012

9M0L Online Log - Log Search for 9M0L Log online

GB3DC Repeater live - Listen to the live audio stream from the GB3DC repeater

Amplifier Systems, Inc - Designer and manufacturer of RF amplifiers used in a variety of custom applications in many diverse industries - from Scientific, Medical, Industrial, and Communications and Broadcast.

Tubes.ru - specialize in trading Russian vacuum tubes used in broadcasting, amateur radio, Hi-Fi audio, meteorology, communication, medical applications and industr

Penta Laboratories - Penta Laboratories is a Manufacturer and Distributor of Vacuum Tubes, Capacitors and Electron Tubes for Broadcast, Industrial, Marine, Medical, and Avionics applications worldwide.

Fixing the LDG Z100 ATU - Repair LDF Z-100 toroid by VK4ADC

Elecraft K2 - Narrow Bandpass Filter - This note covers narrowing the K2\'s 40M bandpass filter to cover the narrower 40M band and reject strong out of band broadcast interference

Baofeng UV-3R unboxing and first review - A short review at ICQ podcast on the Baofeng UV-3R handheld transceiver

Radius Power - DC Filters - DC filters from radius power are specifically optimized for applications with DC supply like e.g. photovoltaic inverters. Radius Power provides total power solutions, EMI filters solutions from design to manufacturing, Three Phase, Single Phase, Power Line, IEC inlet, Power entry modules Filters.

The Antique Radio Collector - Dedicated to the history of radio broadcasting.

SDR-RADIO.com - SDR-RADIO.com is a Windows console for SDR receivers and transceivers. Designed for the commercial, amateur radio and short-wave listener communities, the console provides a powerful interface for all SDR users. Many SDR owners have made their radios available over the internet. Just look at the Web Servers page for a list of the radios you can use. You do not need a licence to use this sodftware with RFSPACE, FUNcube Dongles, Soundcard (SoftRock) and low-end SDRs.

DC RF Sensing PA Switching - Circuit for dc/rf sensing pa switching from g8mny

Non-relay instant RF Switching - Coax lines to do the RF switching. The advantages are instant switching, no power wasting DC control circuits.

IN3 DC-RX - One-Cubic-Inch Direct-Conversion Receiver

PSK31 interface - A simple PSK31/digital interface which can connect your transceiver to a PC soundcard for digital modes.