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Just thought I'd drop a line to say I haven't forgotten the project, time is not something I'm endowed with at the moment, currently working six 12 hour shifts a week means I'm certainly not going to do anything this month, however I've got a couple of weeks leave coming up at the beginning of September so there's a chance I'll be able to retest then.

Just to clarify I believe the spikes in the no coax test to be as a result of wind, nothing nefarious, the VNA was used in exactly the same manner for the other tests, other than connected to coax, still using bluetooth and with me around 15' away from the antenna.

When I do get round to testing there's another element to the test I'd like to add, and that's feedline current sensing, a simple home brew current sensing probe, I'll squeeze some watts up the pipeline for this though. It was Tom Rauch's comments that made me consider the latter in this article:

End fed 1/2 wave matching

<blockquote data-quote="northern35s" data-source="post: 437624" data-attributes="member: 17216">Just thought I&#039;d drop a line to say I haven&#039;t forgotten the project, time is not something I&#039;m endowed with at the moment, currently working six 12 hour shifts a week means I&#039;m certainly not going to do anything this month, however I&#039;ve got a couple of weeks leave coming up at the beginning of September so there&#039;s a chance I&#039;ll be able to retest then. Just to clarify I believe the spikes in the no coax test to be as a result of wind, nothing nefarious, the VNA was used in exactly the same manner for the other tests, other than connected to coax, still using bluetooth and with me around 15&#039; away from the antenna.When I do get round to testing there&#039;s another element to the test I&#039;d like to add, and that&#039;s feedline current sensing, a simple home brew current sensing probe, I&#039;ll squeeze some watts up the pipeline for this though. It was Tom Rauch&#039;s comments that made me consider the latter in this article:<a href="http://www.w8ji.com/end-fed_1_2_wave_matching_system_end%20feed.htm" target="_blank">End fed 1/2 wave matching</a></blockquote>

[QUOTE="northern35s, post: 437624, member: 17216"] Just thought I'd drop a line to say I haven't forgotten the project, time is not something I'm endowed with at the moment, currently working six 12 hour shifts a week means I'm certainly not going to do anything this month, however I've got a couple of weeks leave coming up at the beginning of September so there's a chance I'll be able to retest then. Just to clarify I believe the spikes in the no coax test to be as a result of wind, nothing nefarious, the VNA was used in exactly the same manner for the other tests, other than connected to coax, still using bluetooth and with me around 15' away from the antenna. When I do get round to testing there's another element to the test I'd like to add, and that's feedline current sensing, a simple home brew current sensing probe, I'll squeeze some watts up the pipeline for this though. It was Tom Rauch's comments that made me consider the latter in this article: [URL="http://www.w8ji.com/end-fed_1_2_wave_matching_system_end%20feed.htm"]End fed 1/2 wave matching[/URL] [/QUOTE]

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