Search String: Display: Description: Sort:

Results:

References: [ +from:no9e@arrl.net: 23 ]

Total 23 documents matching your query.

1. Topband: receive 4 square (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Mon, 25 Oct 2010 17:50:37 -0400
K9AY works well (with 3 grounding rods but not one). Much better than vertical or dipole to EU but noisier than an inv L to VK. I am thinking about receive 4 square. Will it work within elevated radi
/archives//html/Topband/2010-10/msg00125.html (6,537 bytes)

2. Topband: 4 sq receive and high power (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Thu, 5 Jan 2012 12:47:12 +1100
I was planning to buy a 4 sq receive system for the upcoming CQ160 contest. One question is about handling of high power when the 4sq cannot be put far away from the tx antenna. HI-Z claims that thei
/archives//html/Topband/2012-01/msg00063.html (6,961 bytes)

3. Topband: Anybody has used Hi-Z for sale? (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Sat, 7 Jan 2012 08:51:25 +1100
HI-Z is not selling so I am asking whether anybody has used Hi-Z for sale? All except HI-Z 8, for which I have no space. Ignacy, NO9E _______________________________________________ UR RST IS ... ...
/archives//html/Topband/2012-01/msg00102.html (6,358 bytes)

4. Re: Topband: ARRL 160 (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Tue, 24 Jan 2012 11:29:34 -0500
I listened to the ARRL 160m contest in VK2 in 2006 and in 2011. In 2005 I heard many NA stations clearly. In 2011 I could hear many NA stations but strong static prevented copying complete callsigns
/archives//html/Topband/2012-01/msg00280.html (7,871 bytes)

5. Topband: Length of phasing line in triangular Hi-Z array (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Sat, 28 Jan 2012 12:59:09 -0500
I have received a used 3-el HI-Z but without the phasing line. What is its electrical length? I saw some notes that it should be 27 degrees long. But this is frequency dependent. Urgent question as i
/archives//html/Topband/2012-01/msg00360.html (7,252 bytes)

6. Re: Topband: Length of phasing line in triangular Hi-Z array (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Sat, 28 Jan 2012 13:33:09 -0500
Thanks a lot. I worked 470 QSO in CQ160 so far using K9AY but I missed a few ones possibly multipliers. Hopefully 3-el HI-Z it will help tonight. Ignacy ______________________________________________
/archives//html/Topband/2012-01/msg00363.html (8,067 bytes)

7. Topband: Compact magnetic loop (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Sat, 17 Jan 2015 17:06:33 -0500
I homebrewed a magnetic loop for diversity reception with Hi-Z 3 el. in K3. For perhaps up to 1000 miles the loop provides excellent separation between signals from Hi-Z. But it hears distant station
/archives//html/Topband/2015-01/msg00095.html (7,213 bytes)

8. Topband: 160 vertical/L (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Mon, 5 Dec 2016 14:48:06 -0500
I have an 80m full-size wire vertical and 160m inv L using the same 8 long elevated (and tuned) radials, each 20m long and 2m high. The RCS-4 switch picks up either antenna. Having separate feeds mak
/archives//html/Topband/2016-12/msg00062.html (7,053 bytes)

9. Topband: Accuracy of modeling of 160m verticals (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Tue, 6 Nov 2018 15:45:28 -0500
A number of articles analyzed 160m verticals by simulation. Once the height was lambda/8 and the number of radials >= 16 (buried) or >=4 (elevated), the difference in gain was at most a few db. I ope
/archives//html/Topband/2018-11/msg00026.html (7,109 bytes)

10. Topband: Problems with inv L on pier over salt water (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Wed, 8 Jan 2020 12:06:54 -0500
I would like to share my experiences with 160m operations during the SP contest last December. My rental house in St George Isl FL had a 140 ft pier over the bay. Also a power line to the end of the
/archives//html/Topband/2020-01/msg00072.html (8,448 bytes)

11. Re: Topband: Problems with inv L on pier over salt water (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Wed, 8 Jan 2020 15:41:46 -0500
There was a report from an expedition where the radials in water did not work well but over water did. Over salt water, one radial (counterpoise) is enough and more do not add performance. I used Exp
/archives//html/Topband/2020-01/msg00076.html (9,082 bytes)

12. Re: Topband: 160m vertical saltwater grounding (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Thu, 9 Jan 2020 09:32:18 -0500
I operated on a pier over salt water on 160m in 3 locations. Once with baloon for an inv L. KW with short antenna creates special problems. See my message yesterday. Short radials will have extremely
/archives//html/Topband/2020-01/msg00095.html (8,379 bytes)

13. Topband: Beverages and VK (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Wed, 16 Sep 2020 11:08:30 -0400
Lately when I worked a VK on 160m, the transmit antenna antenna heard better than beverages. In other cases with the VKs, the beverages were better but not by much. I am wondering why this is the cas
/archives//html/Topband/2020-09/msg00044.html (7,036 bytes)

14. Re: Topband: Beverages and VK (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Wed, 16 Sep 2020 15:18:22 -0400
Interesting observations with dipoles and high angle of arrival at sunrise/sunset. But from graphs, the beverage also has a fairly high radiation angle. I am wondering whether anybody has compared be
/archives//html/Topband/2020-09/msg00051.html (7,057 bytes)

15. Topband: Skip zone on different bands (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Mon, 22 Mar 2021 13:52:28 -0400
Now for 2 weeks my QTH hears a static-like S9+ noise on 160m, 80, and to a less extent, 40m. No static heard on 30-10m. Makes 160/80m bands useless. Beverages and 4 sq point to the East. Seems the st
/archives//html/Topband/2021-03/msg00138.html (6,672 bytes)

16. Topband: More radials towards EU (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Fri, 3 Dec 2021 13:15:33 -0500
My shunt fed tower has 36 radials 70 to 100 ft long. Would adding a few longer radials towards EU help to EU? Eznec says no. Ignacy NO9E _________________ Searchable Archives: http://www.contesting.c
/archives//html/Topband/2021-12/msg00002.html (6,272 bytes)

17. Topband: So2r and diversity receive (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Tue, 21 Dec 2021 16:53:06 +0100
Did anybody try SO2R or SO2V contesting on 160 with Flex 6600? Normally I use diversity of the main TX antenna and beverages. With the TX antenna most of the signals are readable but weaker ones are
/archives//html/Topband/2021-12/msg00051.html (6,847 bytes)

18. Topband: Radials, EZNEC and far field (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Mon, 19 Dec 2022 17:50:53 -0500
Do more radials on a 160m vertical bring more improvements than shown by simulation? Most simulations, e.g. by EZNEC, show that going above 32 radials on 160m brings minimal improvement, say 1 db to
/archives//html/Topband/2022-12/msg00080.html (7,036 bytes)

19. Topband: 160m loaded tower (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Tue, 17 Jan 2023 19:44:19 -0800
I have a 100 ft tower with jk mid tri 40 on top. When shunt fed, it was pretty competitive on 160. Recently the antenna seems to be a few db weaker. The only change was adding another beam at 60ft. C
/archives//html/Topband/2023-01/msg00097.html (6,360 bytes)

20. Re: Topband: 160m loaded tower (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Wed, 18 Jan 2023 12:47:35 -0500
In a number of QSOs recently, other stations made easy contact and my station struggled. I make sure to exclude stations on the east coast and those with 4sq. Ignacy NO9E _________________ Searchable
/archives//html/Topband/2023-01/msg00102.html (8,305 bytes)


This search system is powered by Namazu