[600MRG] W7HDL 630 meter antenna and other info.

Sat Dec 16 11:26:09 CST 2017

George sent me the following information on his setup and I am forwarding it to the list. I am 
in hopes that George will join us here in the near future.

Some of us here will find his QRZ.com page of interest! :-)

Ken W7EKB
------- Forwarded message follows -------
Hi Ken,

The antenna is about 360 feet long, give or take 10 to 20 feet.  It just 
runs out the side of the shop through a big (maybe 1.5") feedthrough.  From 
there it runs up and under the eves to the corner of the house where it goes 
up about 40-45 feet to a crossarm on the tower.  Then it runs about 300 feet 
E-W to the back line of the property where it is only about 30-35 feet above 
the ground.  It sags a good bit in the middle.  I used to have a support 
pole there, but never got around to putting it back up after we rebuilt the 
shelter on that side of the barn.  Maybe next year!  I think the wire is 14 
ga solid copper.

I don't have any matching network, just use that in the TA-12 transmitter.   The 
HeathKit AM-1 says the impedance at 475 KC is 150 ohms.  The same meter says 
it is 50 ohms at 655 KC so that ought to be about 1/4 wavelength.  The 
transmitter has a 5 amp RF ammeter on it, but I have a 2 amp RF amp meter in the 
line as it is a lot more sensitive.

73,
George
W7HDL
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