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WD5IYT USA flag USA

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QSL: DIRECT OR LOTW

Premium Subscriber Lookups: 10896

 

Originally licensed in 1978, I have been interested in radio since I was very young. For many years, I worked with high-power broadcast transmission systems.

Interests: QRP, CW, VHF, Microwaves

Organizations: ARRL, CWops #878, NAQCC #3974, FISTS #14678

 

The current Home station:

WD5IYT ShackHF:

Elecraft K3, SPE Expert 1K-FA amplifier.

VHF: Elecraft K3 for 6m, Kenwood TR-751A with RF Concepts 150W amp for 2m, Kenwood TR-851 for 432 MHz. Homebrew W1GHZ-design transverter for 902 MHz.

Antennas:

HF: Force12 XR-5 and Delta 230/240 yagis on 20m tall Rohn 55G tower, 80m dipole, 160m top-loaded vertical.

VHF: M2 6m5 for 6 meters, M2 2m9 for 2 meters, 12-element JayBeam for 432, loop yagi for 902 MHz on 12m tall Rohn 25G tower.

RX: K9AY Loop system

My HF tower. Force12 XR-5 and Delta 230/240.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

My VHF tower. M2 6M5, 2M9, 12-element 432 JayBeam.

Mobile:

Yaesu FT-857 with "little tarheel" screwdriver antenna

I built my K9AY receiving loop system using a wood pole in my back yard. I used PC boards from Far Circuits to construct the switching matrix and the filter/preamp.

The remote loop select and termination select relay box.

The selector box during construction. This also contains a preamp with bandpass filter.

Completed selector box.

Remote loop select/termination select relays mounted at the loop base.

The completed loop array. It is built around an 8m tall wood pole.

The performance of this loop is outstanding. I can now hear many stations that I could never hear before. Were I to build another one, I'd probably purchase the switching matrix from Array Solutions. It doesn't cost much more than the parts to build it, and it saves lots of time.

6299603 Last modified: 2015-07-16 00:29:10, 3744 bytes

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