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Unlike my S4, the Sirio gives you almost exact dimensions at frequency of choice for the important areas in tuning and setup.

I've have the Sirio New Top One antenna (A/P knockoff) and it uses a gamma match to fine tune. I find those dimensions given, when correct with all other dimensions given, will produce a resonant and well matched antenna at the frequency of choice. I saw this on the first attempt at setting the NTO up and raising it up in the air to working height. I installed this antenna several different times and I don't recall ever having a problem with the match at any reasonable height.

When you made your 14' foot tuned jumper of RG8x did you test it for resonance using your analyzer after doing the math to get the tuned length?

I case you have not made changes to your current setup on the roof and all of the system is still in tact as noted above, and TRY adding this 14' foot jumper back to the current setup at the radio-end, this time, and report what happens.

<blockquote data-quote="Marconi" data-source="post: 746034" data-attributes="member: 903">Unlike my S4, the Sirio gives you almost exact dimensions at frequency of choice for the important areas in tuning and setup.I&#039;ve have the Sirio New Top One antenna (A/P knockoff) and it uses a gamma match to fine tune. I find those dimensions given, when correct with all other dimensions given, will produce a resonant and well matched antenna at the frequency of choice. I saw this on the first attempt at setting the NTO up and raising it up in the air to working height. I installed this antenna several different times and I don&#039;t recall ever having a problem with the match at any reasonable height.When you made your 14&#039; foot tuned jumper of RG8x did you test it for resonance using your analyzer after doing the math to get the tuned length?I case you have not made changes to your current setup on the roof and all of the system is still in tact as noted above, and TRY adding this 14&#039; foot jumper back to the current setup at the radio-end, this time, and report what happens.</blockquote>

[QUOTE="Marconi, post: 746034, member: 903"] [SIZE=5] Unlike my S4, the Sirio gives you almost exact dimensions at frequency of choice for the important areas in tuning and setup. I've have the Sirio New Top One antenna (A/P knockoff) and it uses a gamma match to fine tune. I find those dimensions given, when correct with all other dimensions given, will produce a resonant and well matched antenna at the frequency of choice. I saw this on the first attempt at setting the NTO up and raising it up in the air to working height. I installed this antenna several different times and I don't recall ever having a problem with the match at any reasonable height. [B]When you made your 14' foot tuned jumper of RG8x did you test it for resonance using your analyzer after doing the math to get the tuned length?[/B] [B]I case you have not made changes to your current setup on the roof and all of the system is still in tact as noted above,[/B] [I][B]and TRY adding this 14' foot jumper back to the current setup at the radio-end, this time, and report what happens.[/B][/I][/SIZE] [/QUOTE]

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