Archive for the ‘Antennas’ Category

Hex Beam Installation

After giving up on my 35 year old Cushcraft A4, I ordered a Hex Beam from NA4RR.

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Cushcraft A4 Repair (Fail!)

Shortly after I had repaired my Cushcraft A4 tribander beam the last time, I noticed that it appeared to have a loose connection somewhere.  Especially when the wind was blowing, I would hear something that sounded a little like static crashes, or pops in the receiver.  This was especially noticeable on 20 meters, but was […]

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Restoring the Kenpro KR-5400 Rotator

As mentioned in my prior post, I found that the elevation rotator for my Kenpro-5400 set had corroded internally to the point where it was no longer working.  It had been sitting outside in the weather for over 10 years, with no maintenance or activity, and the seals had allowed water to leak into the […]

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Trap Dipole for the Mesa QTH

In preparation for the Novice Rig Roundup, I was reminded of my poor state of affairs for low band operation at my Mesa QTH.  I had put up a quick 40-meter dipole about 5 or 6 years ago, but it was only about 15 feet off the ground.  This did not do a very good […]

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43′ Vertical Final Tuning

After acquiring an Antenna Analyzer (MFJ-269B), I set the matching network on the bench and began playing with it.  I had a theory that I could simulate the antenna load at various frequencies by placing a capacitor in series with a resistor of various values for the different frequencies.  Then by attaching that to the […]

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