Laport's book is also available in PDF format. About 32MB. 73, Stew K3ND
________________________________ From: Brian_ve7jkz <[email protected]> To: [email protected] Sent: Friday, September 23, 2011 2:32 AM Subject: Topband: Radio Antenna Engineering - Laport On 9/20/2011 2:17 PM, Guy Olinger K2AV wrote: > I share the frustration over the very minimal amount of data out there. > > However... > > Erection of a 260 foot vertical in a testing environment fairly well > requires the facilities of a large antenna range to do the comparisons > below. Thus we are also talking about money, and we are talking about a > subject where all the pressing *commercial *questions have been answered for > nearly a century. We are also talking about research that was done 1920 to > 1940, well outside the time of electronic media and as far as I can tell > never converted, again an expensive task with no commercial or government > money to pay for grad students digging it up and putting it on the internet. > How would one justify the grant money? > > Besides that, who do you know putting up a 260 foot vertical? Why are we > even talking about that? W8JI has done that. He would :>) Who else? > Does Warren Buffet have a ham license? How does a 260 foot vertical stack Nonsense. For research purposes, just put up a balloon vertical on a calm day in some remote area. Set up a transmit source a mile away and compare received signal strength vs height. Temporarily roll out some radials. I could do this test at my own QTH of 20 acres and I'm no Warren Buffett (land is cheap where I am). I could test the balloon vertical over my big ground screen and then move it away from the ground screen and retest. Maybe someday when I have the time... BTW, the complete Proceedings of the IRE back to before 1920 are online at the IEEE now. Laporte's book is now available as a pdf. Rick N6RK Laport's book can be bought in paperback hard copy for $15.95. plus shipping. Go to www.lulu.com and type 'Edmund Laport' in the book search field (No e on the end of Laport). I ordered a copy several weeks ago. It came in a week or so and is really very good. The photos don't seem quite as good as a hardcover version I remember seeing some 30 years ago but that's a minor quibble. Brian VE7JKZ _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
