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Recon, I use to do my matching and tuning as close to the feed point as I could get...even if I was low to the ground or had to use a jumper to reach. I preferred to tune at the feed point when possible. I was also using an antenna analyzer. Some times I also tested using a working feed line...just to see if the results changed remarkably.

Several times I tried to tune and record data to make a graph as I adjusted the rings, on my A99. The A99 was my first base antenna I had where I was interested in comparing and trying to understand what the rings did. I tried a lot of other ideas too.

I had a large folder full of notes and report forms I use to try and make sense of my testing...as it were. This was when I got my first VA1 antenna analyzer and I was on-fire to see what I could do with my new toy. Unfortunately at some point in time...I lost this folder.

I encourage folks to experiment and check things out, but I found out a 1/4 to 1/2 turn of the rings is often only good when trying to determine which direction you need or want to go. At least this is something to consider as you do your tuning on this antenna.

My results in tuning only seemed to make sense on my paper forms when I made adjustments as small as the notches on the rings and sometimes I moved 1/2 a notch and I could still saw differences as I past right by a resonance dip.

<blockquote data-quote="Marconi" data-source="post: 701958" data-attributes="member: 903">Recon, I use to do my matching and tuning as close to the feed point as I could get...even if I was low to the ground or had to use a jumper to reach. I preferred to tune at the feed point when possible. I was also using an antenna analyzer. Some times I also tested using a working feed line...just to see if the results changed remarkably.Several times I tried to tune and record data to make a graph as I adjusted the rings, on my A99. The A99 was my first base antenna I had where I was interested in comparing and trying to understand what the rings did. I tried a lot of other ideas too.I had a large folder full of notes and report forms I use to try and make sense of my testing...as it were. This was when I got my first VA1 antenna analyzer and I was on-fire to see what I could do with my new toy. Unfortunately at some point in time...I lost this folder.I encourage folks to experiment and check things out, but I found out a 1/4 to 1/2 turn of the rings is often only good when trying to determine which direction you need or want to go. At least this is something to consider as you do your tuning on this antenna.My results in tuning only seemed to make sense on my paper forms when I made adjustments as small as the notches on the rings and sometimes I moved 1/2 a notch and I could still saw differences as I past right by a resonance dip.</blockquote>

[QUOTE="Marconi, post: 701958, member: 903"] Recon, I use to do my matching and tuning as close to the feed point as I could get...even if I was low to the ground or had to use a jumper to reach. I preferred to tune at the feed point when possible. I was also using an antenna analyzer. Some times I also tested using a working feed line...just to see if the results changed remarkably. Several times I tried to tune and record data to make a graph as I adjusted the rings, on my A99. The A99 was my first base antenna I had where I was interested in comparing and trying to understand what the rings did. I tried a lot of other ideas too. I had a large folder full of notes and report forms I use to try and make sense of my testing...as it were. This was when I got my first VA1 antenna analyzer and I was on-fire to see what I could do with my new toy. Unfortunately at some point in time...[B]I lost this folder. I encourage folks to experiment and check things out, but I found out a 1/4 to 1/2 turn of the rings is often only good when trying to determine which direction you need or want to go. At least this is something to consider as you do your tuning on this antenna.[/B] My results in tuning only seemed to make sense on my paper forms when I made adjustments as small as the notches on the rings and sometimes I moved 1/2 a notch and I could still saw differences as [I][B]I past right by a resonance dip.[/B][/I] [/QUOTE]

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