dc converter

2 Meter Whip Antenna - Making your own 2 metre (146 MHz) 5/8th wave whip antenna

4 meter antenna conversion - A Siverrot antenna converter for 70 MHz operations

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

Trap dipole for WARC bands - Diamond W8010 Multiband Dipole Modifications

Multiband Trap-style Inverted-V Antenna - Trap-style Inverted-V Antenna for 3.5, 7, 14, 21 & 28 MHz

HF Helical Whip Calculator - Calculating HF helical whip antenna for mobile or portable operation

Tuning HF antenna Traps - Tuning HF Coaxial Antenna Traps

Adjusting HF Antenna Lengths  ^updated - Find out how much to adjust the length of a quarter wave whip or a half wave dipole rather than the outright cut-and-try method.

50MHz J-Pole Antenna - A j-pole antenna for 6 meters band

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

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 ?

6 elements Yagi for 50 MHz - 6 Elements on 50 MHz / 6 metres de VK4ADC

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

FADCA - The Florida Amateur Digital Communication Association Promoting packet radio in the State of Florida

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.

Morse code to text converter - Online morse code conversion tool

Fixing the LDG Z100 ATU - Repairing the Z-100 LDG antenna tuner

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

phpQW Tool Log Analysis  ^updated - Web based Amateur Radio Log Analyzer display contact map based on uploaded log, support ADIF Cabrillo REG1TEST-Edi and STF-Logfile format

DC Buss Box - A DC buss distribution box, make it yourself for less than $10

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