Author: HAM RADIO SITE

Sony ICF SW100 1

Multiband Receiver Sony ICF SW100 (Review)

This was a single-chip radio manufactured in the 1990s and early 2000s. It was marketed as a “world-band receiver”. It covers 150kHz to 30MHz and FM from 76MHz to 108MHz. The set decodes stereo...

Old Lightning Arrester Advertthe 0

Lightning and other mishaps

About a year or so ago, I was presented with a Philips transistor radio that according to the owner had been struck by lightning. Fortunately, the lightning strike must have been quite some distance...

5 element quad for 2m band 0

5 element quad for 2m band

Boom Length – 1651 mm Distance between: Between Distance, mm R – V 432 V – D1 330 D1 – D2 406 D2 – D3 483 Dimenson of elements: Side, mm Diagonal, mm Perimeter,...

QRP Dummy Antenna 0

QRP Dummy Antenna

I needed a small dummy antenna for testing my Elecraft K2. It was to be small and capable of being used into the VHF range. It had to have a BNC connector, and it...

The Twelfth Wave Matching Network 0

The Twelfth Wave Matching Network

Although the mismatch between 50 Ohm and 75 Ohm systems are usually acceptable, it’s easy to obtain a near perfect match using a pair of twelfth wave lines. The nice part is you only...

Optimus Pro CS 5 1

Communications Speakers

Have you searched and searched for a good speaker for your ham radio? That perfect speaker that would let you hear voices through the noise and static without hiss? A speaker that isn’t fatiguing...

Inverted L Antenna 0

Inverted L antenna for Reception

Do to it’s ease of construction, the most popular antenna for short wave reception is the inverted “L” antenna. It’s often just a random length of wire strung up as high as possible. My...