Posts Tagged ‘Antennas’

ANSR Ground Station Tracking System

In support of the Arizona Near Space Research group, I have agreed to set up a new ground station for tracking the balloon flights.  We do this in order to point directional antennas at the balloons as they float across the state on their missions.  I had done this about 10 – 12 years ago […]

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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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ANSR – Arizona Near Space Research work

After having taken a break for a few years, I have renewed my membership in the Arizona Near Space Research group.  This is a club that specializes in high-altitude balloon launches that carry payloads typically designed and built by students ranging from Jr. High to Post Graduate levels.  I was involved in the club shortly […]

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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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