Home |
Search |
Today's Posts |
#3
![]() |
|||
|
|||
![]()
Thanks Gary, I initially tried tuning with the original coil in place and
received a 5-1-9 report from 122 miles away. The lower three bands tuned well, but I figured I must be passing 160 right into the ground system. I totally removed the enameled coil and only 80 would not come below 1.7. 40 and 160 matched very well, so I think I can get by with that. Leaving the coil off has resulted in 5-9-9's from everyone I called so far on 160, so perhaps I was right about radiating into the ground.So far, it seems to be doing a great job. The problem with 10 and 17 meters has been with me since the antenna was new and before I put the 160 kit on it. I have had more pressing issues and had forgotten about it until I retuned the antenna after adding the 160 coil. I have heard other comments made about not getting a good match on 17 meters. I was hoping someone out here had found a simple fix because the antenna works so well as is that I can't see putting a lot of effort into fixing something so minor. 73, Phil - N1KI In article , am wrote: Hi Phil My antenna tuned perfectly until I added the 160 coil, then I had to retune the whole thing and had lots of woes until I finally found that sweet spot on each band where the SWR was down where it belonged. It has been a long while and I don't remember, but I did have to make a NEW feed coil in place of that enameled wire one that was more than twice as many turns, same diameter, before anything came close to tuning up right. I used the same gauge wire as the original, just made it with twice as many turns, spacing was closer also. I did find it's best to leave this new coil on a tube because it gets bumped easily. What I did was cut the bottom out of a plastic cylinder about 14 inches in diameter and placed that around the antenna base. A little round-up inside the container from time to time and a box of salt kept the weeds out. TTUL Gary Anti-spam measure to direct unwanted e-mail to the FTC's unsolicited commercial e-mail address. For direct reply, use my callsign in arrl.net format or look me up on qrz.com |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
butternut and 17 meters problem | Antenna | |||
butternut and 17 meters problem | Antenna | |||
Butternut info | Antenna | |||
Top Loading Butternut HF2V for 160m | Antenna | |||
Seeking Butternut HF6V manual | Antenna |