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1. Topband: Inverted L improvement question (score: 1)
Author: Todd Goins <tgoins@gmail.com>
Date: Mon, 17 Dec 2018 12:55:02 -0800
Hello, Yes, I'm a 160m newbie but have been licensed and active since 1990. I have CW/Phone experience on HF but I'm just getting my feet wet on 160m. I participated in the ARRL 160 CW contest and ha
/archives//html/Topband/2018-12/msg00167.html (8,033 bytes)

2. Re: Topband: Inverted L improvement question (score: 1)
Author: Todd Goins <tgoins@gmail.com>
Date: Tue, 18 Dec 2018 08:07:22 -0800
Hi Gary, Thanks for the help. I got the new wire in place roughly as you described. It is a few feet lower to give good clearance from the anchoring branch. It doesn't work very well. Last night it w
/archives//html/Topband/2018-12/msg00173.html (7,484 bytes)

3. Re: Topband: Inverted L improvement question (score: 1)
Author: Todd Goins <tgoins@gmail.com>
Date: Tue, 18 Dec 2018 13:01:06 -0800
So, Mirko brings up an interesting point. I can run out far more than 35' horizontally. Should I make the wire a lot longer in that dimension? I was working with the 130' (approx) total length I'd re
/archives//html/Topband/2018-12/msg00180.html (11,742 bytes)

4. Topband: Inverted L improvement question - Part 2 (score: 1)
Author: Todd Goins <tgoins@gmail.com>
Date: Fri, 28 Dec 2018 15:35:53 -0800
I originally started this thread and I want to once again thank everyone who provided input and advise both privately and on the reflector. So the 100' tall vertical with the 30' horizontal loading w
/archives//html/Topband/2018-12/msg00306.html (8,945 bytes)

5. Re: Topband: Inverted L improvement question - Part 2 (score: 1)
Author: Todd Goins <tgoins@gmail.com>
Date: Fri, 28 Dec 2018 17:34:12 -0800
Sorry, I wasn't completely clear in my post. The elevated radials are not connected to the buried radial field. They are two separate entities. Now the elevated radials do sit above or cross some the
/archives//html/Topband/2018-12/msg00314.html (8,370 bytes)

6. Re: Topband: Inverted L improvement question - Part 2 (score: 1)
Author: Todd Goins <tgoins@gmail.com>
Date: Fri, 28 Dec 2018 18:30:40 -0800
Hi Mike, Oh, I would totally believe that the air-wound choke is ineffective at 160m. It just happens to be what I had available to use when I rigged up the elevated radials in the cold rain yesterda
/archives//html/Topband/2018-12/msg00317.html (9,588 bytes)

7. Re: Topband: Inverted L improvement question - Part 2 (score: 1)
Author: Todd Goins <tgoins@gmail.com>
Date: Fri, 28 Dec 2018 19:39:27 -0800
A person emailed me to ask if I could take SWR readings at the rig without a tuner. Since my antenna analyzer is non-op due to the AM station nearby. The feedline is about 140' of LMR-240. Here is th
/archives//html/Topband/2018-12/msg00318.html (15,539 bytes)

8. Re: Topband: Inverted L improvement question - Part 2 (score: 1)
Author: Todd Goins <tgoins@gmail.com>
Date: Sat, 29 Dec 2018 13:31:46 -0800
Hello Grant, Thanks for the input. I've made a couple of modifications this morning. I can't make that choke today because I don't have the FT240-31 but I'll check out that design and look into order
/archives//html/Topband/2018-12/msg00325.html (11,508 bytes)

9. Re: Topband: Inverted L improvement question - Part 2 (score: 1)
Author: Todd Goins <tgoins@gmail.com>
Date: Sun, 30 Dec 2018 10:09:51 -0800
Hi Rob, You ask some good questions and make some interesting observations. Nope, it is the same radial system. I don't have a reasonable way (time/money/effort) to create a whole new 50-60 wire buri
/archives//html/Topband/2018-12/msg00334.html (11,701 bytes)

10. Re: Topband: Inverted L improvement question - Part 2 (score: 1)
Author: Todd Goins <tgoins@gmail.com>
Date: Mon, 31 Dec 2018 10:06:50 -0800
Thanks again everyone. I've read all your suggestions and advise and although I won't be able to make some of the more difficult (or impossible at my site) changes there are a few things I'm willing
/archives//html/Topband/2018-12/msg00347.html (12,497 bytes)

11. Topband: Inverted L improvements - Part 3 (score: 1)
Author: Todd Goins <tgoins@gmail.com>
Date: Wed, 16 Jan 2019 13:59:43 -0800
Thanks to everyone that has written to me on the reflector and via email. I've read everything you've written and hopefully your efforts have helped me or guided me towards getting this antenna worki
/archives//html/Topband/2019-01/msg00040.html (9,265 bytes)

12. Re: Topband: Inverted L improvements - Part 3 (score: 1)
Author: Todd Goins <tgoins@gmail.com>
Date: Wed, 16 Jan 2019 15:41:32 -0800
Hi Mike, Yes, it is a space issue. The presentation I was referring to is http://audiosystemsgroup.com/160MPacificon.pdf where it has a table the references a paper by K3LC that has "Optimum Use of W
/archives//html/Topband/2019-01/msg00042.html (7,605 bytes)

13. Re: Topband: Inverted L improvements - Part 3 (now with data) (score: 1)
Author: Todd Goins <tgoins@gmail.com>
Date: Fri, 18 Jan 2019 17:22:42 -0800
Hello, I borrowed a RigExpert analyzer and was able to take measurements that folks were asking for without AM station overload. I also built the K9YC 160m choke (18 turns of RG58 on a type 31 2.4" t
/archives//html/Topband/2019-01/msg00048.html (7,394 bytes)

14. Re: Topband: Inverted L improvements - Part 3 (now with data) (score: 1)
Author: Todd Goins <tgoins@gmail.com>
Date: Mon, 21 Jan 2019 17:45:52 -0800
Hello, Per many people's recommendations I added 800ft of radials today. That is 8 x 100ft each. It made a difference on the analyzer which I'll summarize below. It was dark when I finished but here
/archives//html/Topband/2019-01/msg00067.html (8,905 bytes)

15. Re: Topband: Inverted L improvements - Part 3 (now with data) (score: 1)
Author: Todd Goins <tgoins@gmail.com>
Date: Wed, 23 Jan 2019 12:45:16 -0800
Regarding the choke construction and implementation. Mike and I have had an offline exchange, with pictures, and I think we have agreed that the choke has been constructed properly per the newest K9Y
/archives//html/Topband/2019-01/msg00105.html (9,662 bytes)

16. Re: Topband: Inverted L improvements - Part 3 (now with data) (score: 1)
Author: Todd Goins <tgoins@gmail.com>
Date: Wed, 23 Jan 2019 13:09:19 -0800
Both Merv and Guy are correct here. Perhaps this antenna doesn't ever have a chance at being any good due to the suburban area and lot size that I'm constrained by. Within a 250ft radius (huge!) ther
/archives//html/Topband/2019-01/msg00106.html (11,319 bytes)

17. Re: Topband: Inverted L improvements - Part 3 (now with data) (score: 1)
Author: Todd Goins <tgoins@gmail.com>
Date: Wed, 23 Jan 2019 16:02:23 -0800
Okay, after many requests, on and off list, I disconnected the 43' T 160m antenna at its feed point and for good measure I disconnected the coax feedline from the system too. It made a pretty substan
/archives//html/Topband/2019-01/msg00114.html (9,210 bytes)


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