Category Archives: Amateur Radio / Ham Radio

Building antenna tuners and amplifiers often requires you to roll your own inductor.  This takes you through the steps.  Wind your own Inductor

This site has a calculator to determine the impedance of  length of wire.  Very helpful http://www.chemandy.com/calculators/round-wire-impedance-calculator.htm

ATX power supplies are easy to convert to a 12 volt supply for a radio.  ATX supplies typically provide 10 to 12 Amps output current. To convert the supply take several of the yellow wires (12 Volt lines) and tie … Continue reading →

Kits and Parts has all sorts of semiconductors and toroid’s.  They also have rf kits that are useful for building a radios.  A fairly new product is their 5 Watt CU Transceiver for $42, it is call “The Flying Pig … Continue reading →

I found this end fed 6 – 40 meters and picked one up. I have saved the PDF on my site and you can view it here: Endfed6_40 Click here for the link to the club selling the antenna  http://earchi.org/ Click … Continue reading →

Here is the link for the ”UGLY BALUN”, this makes an ideal RF Choke http://www.hamuniverse.com/balun.html   For IT Support and InfoSec services see, www.quanexus.com

This link helps you find local test sites http://www.arrl.org/find-an-amateur-radio-license-exam-session   For IT Support and InfoSec services see, www.quanexus.com  

Here is a handy link on materials and equations for toroids. http://toroids.info/ For IT Support and InfoSec services see, www.quanexus.com