| To: | topband@contesting.com |
|---|---|
| Subject: | Re: Topband: E51D and OHQP |
| From: | Jim Brown <jim@audiosystemsgroup.com> |
| Reply-to: | jim@audiosystemsgroup.com |
| Date: | Thu, 24 Aug 2023 11:39:53 -0700 |
| List-post: | <mailto:topband@contesting.com> |
On 8/24/2023 9:15 AM, W3HKK@roadrunner.com wrote: Been working on NVIS antennas for the OHQP this Sat but had a major malfunction just when all antennas seemed ready to go. Something I learned from an extensive modeling study about ten years ago is that the optimum height for an NVIS antenna is a quarter-wave. Higher reduces upward radiation, lower increases ground loss. This study was peer reviewed. 73, Jim K9YC _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector |
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