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doc it is a minivna, not as expensive over here as a mfj £130,
im just learning how to use it so maybe i am reading it wrong,
you get no instructions at all on how to use it,

it looks to me like the best vswr is at 27.6 but its not resonant there,
XS=0 or almost down at 26.9,
i want both XS=0 and min vswr at around 27.580 if thats possible,
am i reading this correctly or not,

when i first errected it the antenna was set to the tuning chart with a little precision guesswork calculator and a tape measure then i fiddled a little to see if i could get it working any better and maintain a low vswr,
i ended up right about where i started,

now i moved it and lowered it the vswr min point has moved up a little in frequency but not much,

its the XS thats bothering me, i want to bring that up towards the min vswr point and maintain a low vswr,

not sure if i can do that with just the trombone or do i also need to shorten the antenna,

i guess i will have to alter things one at a time and observe the effect,

i figured somebody that has tuned one with an analyser would be able to point me in the right direction :?:

thanks.

<blockquote data-quote="bob85" data-source="post: 83408" data-attributes="member: 18">doc it is a minivna, not as expensive over here as a mfj £130,im just learning how to use it so maybe i am reading it wrong,you get no instructions at all on how to use it,it looks to me like the best vswr is at 27.6 but its not resonant there,XS=0 or almost down at 26.9,i want both XS=0 and min vswr at around 27.580 if thats possible,am i reading this correctly or not,when i first errected it the antenna was set to the tuning chart with a little precision guesswork calculator and a tape measure then i fiddled a little to see if i could get it working any better and maintain a low vswr,i ended up right about where i started,now i moved it and lowered it the vswr min point has moved up a little in frequency but not much,its the XS thats bothering me, i want to bring that up towards the min vswr point and maintain a low vswr,not sure if i can do that with just the trombone or do i also need to shorten the antenna,i guess i will have to alter things one at a time and observe the effect,i figured somebody that has tuned one with an analyser would be able to point me in the right direction :?:thanks.</blockquote>

[QUOTE="bob85, post: 83408, member: 18"] doc it is a minivna, not as expensive over here as a mfj £130, im just learning how to use it so maybe i am reading it wrong, you get no instructions at all on how to use it, it looks to me like the best vswr is at 27.6 but its not resonant there, XS=0 or almost down at 26.9, i want both XS=0 and min vswr at around 27.580 if thats possible, am i reading this correctly or not, when i first errected it the antenna was set to the tuning chart with a little precision guesswork calculator and a tape measure then i fiddled a little to see if i could get it working any better and maintain a low vswr, i ended up right about where i started, now i moved it and lowered it the vswr min point has moved up a little in frequency but not much, its the XS thats bothering me, i want to bring that up towards the min vswr point and maintain a low vswr, not sure if i can do that with just the trombone or do i also need to shorten the antenna, i guess i will have to alter things one at a time and observe the effect, i figured somebody that has tuned one with an analyser would be able to point me in the right direction :?: thanks. [/QUOTE]

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