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Tuesday, January 17, 2012

Installing Hy-Gain AV-640 Antenna

This past weekend myself, W6TAD and K6NUG installed a new Hy-Gain AV-640 antenna on W6TAD's QTH.

So on Saturday after a trip to Home Depot to purchase a few saw horses, we started the assembly of the antenna. That took us about 4 hours and we all agree, it was not too bad to do. It was much easier than the Cushcraft R8 we did a few years ago.

Sunday during the light rain we installed the VMP 5 foot tripod on the roof top of the garage, secured the 6.5 foot mast (which weighted more than the antenna and mast together), and placed the antenna on it.  That is when we remembered we did not place the guy rope, so down the antenna came, we guyed it at 14 foot and put it back in the air again.

Hy-Gain AV-640
Once it was back in the air we hooked up the MFJ-266 Antenna Analyzer and measured the SWR, oddly enough all the bands were high > 4.0, but we decided to hook it up to the Yaesu FT-950 and tune it as well to check it out...well after turning we got a SWR < 1.3 on most of the bands except 40M.

So Monday we call Hy-Gain and they tell us our issue is that a cold solder on the 40M coil is our issue and they told us how we can easily fix it, so that adventure will happen this Thursday.

So we called out CQ on 20M and KB1SIC who lives in Connecticut answered our call.  We got good signal reports and then turned on the Quadra AMP, to get even better signal reports :).

So overall we are pleased with the new antenna and will be ready for this weekends contest, the North American QSO Party.

Till next time


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