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Bob,
Well, I would think that shortening the antenna very slightly would shift the resonant point up in frequency and make that '5.8' smaller. (I also think that '5.8' isn't all that 'bad', sort of doubt if you'd 'realize' any benefit from making it '0'.) That 'very slightly' means exactly that, a -very- slight change in length. If you have to move the antenna again, it's something you might try. If or until then, I seriously doubt if it's something to worry about.
After using that "minivna" for a while I think you'll see that resonance and minimum SWR seldom fall on the same frequency. No idea what the 'average' spread on that would be, but would be willing to bet on there being one. And in most cases, it just doesn't make any practical difference. Oh, it could, but if the 'spread' isn't much, neither if the difference.
- 'Doc

(As for coming with instructions, who ever reads the dang things until you get totally lost?)

<blockquote data-quote="W5LZ" data-source="post: 83421" data-attributes="member: 129">Bob,Well, I would think that shortening the antenna very slightly would shift the resonant point up in frequency and make that &#039;5.8&#039; smaller.&nbsp; (I also think that &#039;5.8&#039; isn&#039;t all that &#039;bad&#039;, sort of doubt if you&#039;d &#039;realize&#039; any benefit from making it &#039;0&#039;.)&nbsp; That &#039;very slightly&#039; means exactly that, a -very- slight change in length.&nbsp; If you have to move the antenna again, it&#039;s something you might try.&nbsp; If or until then, I seriously doubt if it&#039;s something to worry about.After using that &quot;minivna&quot; for a while I think you&#039;ll see that resonance and minimum SWR seldom fall on the same frequency.&nbsp; No idea what the &#039;average&#039; spread on that would be, but would be willing to bet on there being one.&nbsp; And in most cases, it just doesn&#039;t make any practical difference.&nbsp; Oh, it could, but if the &#039;spread&#039; isn&#039;t much, neither if the difference.&nbsp;- &#039;Doc(As for coming with instructions, who ever reads the dang things until you get totally lost?)</blockquote>

[QUOTE="W5LZ, post: 83421, member: 129"] Bob, Well, I would think that shortening the antenna very slightly would shift the resonant point up in frequency and make that '5.8' smaller. (I also think that '5.8' isn't all that 'bad', sort of doubt if you'd 'realize' any benefit from making it '0'.) That 'very slightly' means exactly that, a -very- slight change in length. If you have to move the antenna again, it's something you might try. If or until then, I seriously doubt if it's something to worry about. After using that "minivna" for a while I think you'll see that resonance and minimum SWR seldom fall on the same frequency. No idea what the 'average' spread on that would be, but would be willing to bet on there being one. And in most cases, it just doesn't make any practical difference. Oh, it could, but if the 'spread' isn't much, neither if the difference. - 'Doc (As for coming with instructions, who ever reads the dang things until you get totally lost?) [/QUOTE]

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