You said it Jim, but in to many words, It is installation specific, period.
Mel, K6KBE
From: Jim Brown <j...@audiosystemsgroup.com>
To: elecraft@mailman.qth.net
Sent: Sunday, September 9, 2018 1:03 PM
Subject: Re: [Elecraft] ARRL book on receiving antennas
On 9/9/2018 12:39 PM, Bob McGraw K4TAX wrote:
> How does one measure transmit antenna efficiency?
Not easily. :) But NEC provides quite good predictions IF the antenna
is completely and accurately described in the model. For verticals, that
includes ground quality. For all antennas it includes height above
ground, counterpoise, radial systems, and transmission lines.
AND -- propagation reporting systems like WSPR and the Reverse Beacon
Network (RBN) can provide very good comparisons between antennas IF a
LOT of reports from a LOT of stations is averaged over a LOT of time.
73, Jim K9YC
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to farrerfo...@yahoo.com
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com
