I use the measurements in the diagram. I used 60" + connection (about 4") and modeled it like the diagram. I used a hose clamp on the vertical and soldered a terminal lug on the bottom end.
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- Thread starter Mr T
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Mr T, I'll have to think about this new information.
Don't worry about asking questions. If folks didn't ask questions...IMO these forums would be of little value.
As far as the loop measurements go, I haven't added any brackets yet. Just trying to figure which one to go with.
Are you using an antenna with the same loop as I'm wanting to use? What antenna is it on and what was the SWR?
Sorry, I'll keep asking questions till some one tells me to stop.
Like I said in my last post...I have a 1/2 wave antenna that uses a tuning coil that is 16" in diameter with 8" end connectors, and is similar to the Maco V58. See below, it is a Wolf 50_11m, which is an end fed 1/2 wave with no radials. It probably works out to be about the same length as binrat describes in his link.
Wolf Radio.com CB, Ham, Pirate Radio Antennas [CB Antenna]
You will notice that this antenna's radiator is resting inside of an adjustable capacitor which shows a small black area, inside, and at the top of the mount. Again, it is similar to the Maco V58. This allows for tuning the radiator length somewhat...adjusting the reactance of the antenna at the base instead of at the tip.
I see we were posting at about the same time. I guess that binrat's antenna had radials like his link shows, so he may have had a better match than I was able to get with the Wolf.
Mr T, the best match I could get was at about 30' feet in height, and the match was really effected by any changes in height for this one. That might have been due in part to no radials. With the antenna low to the Earth the match was better, but I always worked it from 30' - 50' feet and it made very strong RX/TX signals...even when it was showing 1.70:1 SWR.
Here is my Wolf mounted with an A99 radial GPK hub attached with three horizontal radials...and it made absoutely no difference...it was like the radials were not even on the antenna.
Mr T, the best match I could get was at about 30' feet in height, and the match was really effected by any changes in height for this one. That might have been due in part to no radials. With the antenna low to the Earth the match was better, but I always worked it from 30' - 50' feet and it made very strong RX/TX signals...even when it was showing 1.70:1 SWR.
Here is my Wolf mounted with an A99 radial GPK hub attached with three horizontal radials...and it made absoutely no difference...it was like the radials were not even on the antenna.
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Found it, I knew I had a picture around someplace. Look at post#12
http://www.worldwidedx.com/cb-antennas/157628-help-me-identify-base-antenna-2.html
http://www.worldwidedx.com/cb-antennas/157628-help-me-identify-base-antenna-2.html
So basically you are getting that swr with only half of the antenna together, that's good in my books. The radials are an important part of the antenna.
For the A99 that is true. However for the type in which you are dealing with,they are part of the antenna.
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Fully assemble. Don't put it too high yet, that way adjustment will be easier. If you have made the tuning setup like I posted then set your driven vertical to the length in the diagram and adjust for swr by moving the wire along the ring portion first, if no good then small adjustments on the vertical.