Re: [Elecraft] Very short 80m antenna

2017-01-22 Thread Jim Brown
On Sun,1/22/2017 4:34 AM, Vic Rosenthal 4X6GP wrote: there is no way to put up a vertical more than about 3m high, and no room for radials longer than a few meters. Hi Vic, Can you bond to the structure of your building near the base of a vertical? If so, it will serve as a very effective c

Re: [Elecraft] Very short 80m antenna

2017-01-22 Thread Harry Yingst via Elecraft
A good book to read on this subject is "Short Vertical Antenna and Ground Radial" By Jerry Sevick W2FMI http://www.universal-radio.com/catalog/books/0554.html From: James Rodenkirch To: "elecraft@mailman.qth.net" Sent: Sunday, January 22, 2017 8:03 AM Subject: [Elecraft] Very shor

Re: [Elecraft] Very short 80m antenna

2017-01-22 Thread brian
How about 0.007 wavelenght? NAA did this on 24 KHz with 800-960' towers. The key is the extensive top hat design and $$$. Feedpoint Z = On 1/22/2017 13:09 PM, James Rodenkirch wrote: A couple of other "info sites to explore," Vic. http://www.k7mem.com/Electronic_Notebook/antennas/shortant.h

Re: [Elecraft] Very short 80m antenna

2017-01-22 Thread Hajo Dezelski
Hi, everything is possible: https://www.qrz.com/db/K2MIJ 73 de Hajo Gruss Hajo --- Cela est bien dit, mais il faut cultiver notre jardin. http://hajos-kontrapunkte.blogspot.de/ On Sun, Jan 22, 2017 at 2:03 PM, James Rodenkirch wrote: > Don't give up on the notion of a shortened vertical just