From w3kl.amateur.radio.station at gmail.com  Mon Apr 29 13:38:36 2024
From: w3kl.amateur.radio.station at gmail.com (Jeffrey Okamitsu)
Date: Mon, 29 Apr 2024 13:38:36 -0400
Subject: [Antennaware] Change Far Field Distance In EZNEC
Message-ID: <135ECEA0-CD1B-4D9C-BEF9-11D4C86F7C59@gmail.com>

Does anyone know how to change the distance from the source (R) at which far-field calculations are done in EZNEC?  Yes, I know I can scale the results by scaling with e^(-jkR)/R, but it?s tedious to calculate each time I want to change R.

I have gone through the manual a few times now, and the only values are either one mile or one km. The NEC RP card lets you make the change, so I know that Roy must be setting the parameter (or maybe not).  

Apparently, Roy isn?t answering questions on his website anymore.

Finally, I know I can export the 1 km numbers to Excel or MATLAB and do the calculations, but it?s much easier to do them in EZNEC. I guess I can just run NEC5 with cards, too, but again, it?s easy with EZNEC.

Thanks for reading,

73, Jeff
W3KL