I got my info from some web sight,they said 16-20 ft of coax wrapped in coil as close to antenna as possible , sure is ugly
??????????
re-read post #5
I got my info from some web sight,they said 16-20 ft of coax wrapped in coil as close to antenna as possible , sure is ugly
??????????
Took antenna down this morning,I put the ground plain kit back on it
Raised it to 28 ft from ground level,swr went to 1.9 on 27,3850...
I am using rg8 coax from a tower company,85ft used,tests good on ohms,
No opens,very stiff stuff,my choke bulan is about 20 coils of the coax wraped around a gallon windshield washer jug.very stiff coax .....
I have been trying to get the swr below 1.8 on my :blush::blush: install on the side of my deck ,I made a choke balun out of about 20 wraps of my to long rg8 coax .
But the antenna is super low at 28,300--28,500 swr there is 1.1
It about 8 ft high so I could play with the rings I tried cutting off 2" from the top
When I was tuning it for 27,3850 the highest I could go till new radio arrived
A2970 n2 working good though. Should I worry about the 1.8 swr
If you trimmed 2" off the top, it should tune well on 10m.
Too many wraps in the balun; 5 turns @ 4-5" wide loop should do it. But that doesn't affect SWR. If one SWR meter says it is OK and one doesn't; then you have a confidence problem. That is, one meter is probably close to be correct and the other obviously isn't. Make/use a 2:1 dummy load and that should tell which meter is right . . .
Assuming (dangerous to do) that the antenna is new and the coax isn't; then I will suspect the coax might have a problem. Used coax can (not saying that it is) deviate from its center. That can affect SWR.
My experience with old coax, under specific consideration of the line performance, is that as the coax get older the SWR will look better and better as a result of added line loss...until the line shows a short. I've never seen a short that I felt was due to age, but I think that probably happens rarely in real life.
The center of CB is 27.185 (ch19).As it is advertised to come pre-tuned to the middle of CB (@27.205)...
I look to have missed your point about deviation of the center conductor. Thanks for helping me understand.Assuming (dangerous to do) that the antenna is new and the coax isn't; then I will suspect the coax might have a problem. Used coax can (not saying that it is) deviate from its center. That can affect SWR.
The center of CB is 27.185 (ch19).
I have nothing more to add, carry on
359, thanks for the info, but here is a link to my reference for the center frequency that Solarcon published describing their I2K in the manual. I thought I should be loyal to the source I used. Read the part that is a NOTE:
View attachment 13217
My main point was that the I2K is a CB antenna.
On your point, I don't object to either view here. I'm not convinced, but I have heard your point argued, and I think the issue is mute.
Thanks,