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Total 219 documents matching your query.

1. Topband: HWF two years report. N4IS (score: 1)
Author: "n4is" <n4is@comcast.net>
Date: Fri, 14 Jan 2011 13:20:52 -0500
Hi Top-Band lovers It has been two years since I started my experiments with Horizontal Waller Flag. I sent a report like this a year ago with great results, however after another year developing thi
/archives//html/Topband/2011-01/msg00058.html (11,022 bytes)

2. Re: Topband: VP8ORK (score: 1)
Author: "n4is" <n4is@comcast.net>
Date: Mon, 31 Jan 2011 12:28:39 -0500
Wayne Best time for east coast to work VP8/o is 4 to 5 z Regards José Carlos N4IS _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
/archives//html/Topband/2011-01/msg00165.html (7,078 bytes)

3. Re: Topband: Exciting noise sources (score: 1)
Author: "n4is" <n4is@comcast.net>
Date: Sun, 27 Mar 2011 12:44:24 -0400
<< we have not found a realiable way of detecting the primary source other than pole by pole testing and hardware tightening>> Hi Larry Here in South Florida we have what I believe is the best in cla
/archives//html/Topband/2011-03/msg00074.html (9,329 bytes)

4. Re: Topband: Pixel Technologies Magnetic RX Loop (score: 1)
Author: "n4is" <n4is@comcast.net>
Date: Tue, 10 May 2011 14:40:09 -0400
Hi folks This is a long and interesting thread and I would like to add some of my observations from the last 5 years using loaded loops on 160m in a suburban lot. SOURCE, begins at roughly one-sixth
/archives//html/Topband/2011-05/msg00020.html (11,218 bytes)

5. Re: Topband: Testing for common mode noise (score: 1)
Author: "n4is" <n4is@comcast.net>
Date: Tue, 23 Aug 2011 01:12:56 -0400
Don Kirk The only way to eliminate Common mode noise is first of all understand the basic concept what it is. Common mode noise is not a noise, it is actually a signal generated by a current called c
/archives//html/Topband/2011-08/msg00054.html (11,655 bytes)

6. Re: Topband: 4W6A (score: 1)
Author: "n4is" <n4is@comcast.net>
Date: Sun, 18 Sep 2011 16:07:34 -0400
Hi Merv 4W6A started on 160m just after his Sunset. He's signal was in and out until I got a good peak near 10:15 Z and a solid QSO, Doug NX4D also worked him few minutes after me., as well Dave W5UN
/archives//html/Topband/2011-09/msg00098.html (8,178 bytes)

7. Re: Topband: Rx antenna suggestions (score: 1)
Author: "n4is" <n4is@comcast.net>
Date: Tue, 4 Oct 2011 05:50:45 -0400
Hi Gary First thing to do is detune or neutralize your TX antenna during RX, a vacuum relay disconnecting the center of the coax maybe enough,. NX4D figured out that it was not enough for his insulat
/archives//html/Topband/2011-10/msg00015.html (7,348 bytes)

8. Re: Topband: question about RX splitter (score: 1)
Author: "n4is" <n4is@comcast.net>
Date: Wed, 19 Oct 2011 21:40:47 -0400
Guilles << I cannot use a commercial splitter >> The small you can get is direct from Mini-circuits http://www.minicircuits.com/pdfs/ADP-2-1.pdf or http://www.minicircuits.com/pdfs/PSC-2-2+.pdf The b
/archives//html/Topband/2011-10/msg00161.html (9,632 bytes)

9. Re: Topband: Flag/Pennant Question (score: 1)
Author: "n4is" <n4is@comcast.net>
Date: Wed, 30 Nov 2011 08:28:15 -0500
They have perfect cardiod patterns just like the full sized models BUT negative 45 db "gain" is fairly useless for DX" Working with antennas with low gain is a huge challenger however 100% possible.
/archives//html/Topband/2011-11/msg00293.html (8,795 bytes)

10. Re: Topband: MORE T8 INFO T8CW (score: 1)
Author: "n4is" <n4is@comcast.net>
Date: Mon, 19 Dec 2011 16:59:15 -0500
Hi Ryosei san Last September I had good copy on T80W around 10:10z on 160m but no QSO. I hope to work you for a new one on 160m. Regards JCarlos N4IS 73's Hi Mike, Now in palau rolling blackouts, the
/archives//html/Topband/2011-12/msg00467.html (7,414 bytes)

11. Re: Topband: Digital on 160m? (score: 1)
Author: "n4is" <n4is@comcast.net>
Date: Thu, 29 Dec 2011 22:02:31 -0500
Ian It will be very nice above 1900 KHz. Regards Carlos N4IS --Original Message-- From: topband-bounces@contesting.com [mailto:topband-bounces@contesting.com] On Behalf Of Ian Wade G3NRW Sent: Thursd
/archives//html/Topband/2011-12/msg00594.html (8,630 bytes)

12. Re: Topband: digital on 1838 +/- (score: 1)
Author: "n4is" <n4is@comcast.net>
Date: Fri, 30 Dec 2011 22:59:09 -0500
Jim That is not the case on weak signal bands, and in special 6m, digital modes are above 50.250 MHz, there is a clear reason for that, digital is not a narrow mode, there are phase noises that can t
/archives//html/Topband/2011-12/msg00626.html (7,808 bytes)

13. Re: Topband: 160M JT65HF (score: 1)
Author: "n4is" <n4is@comcast.net>
Date: Sat, 31 Dec 2011 23:27:55 -0500
Happy New Year to all Jim, I'd love to have you as a neighbor. You know how to set up a station for best performance. I had experience with some stations in my area that wants to get long DX increasi
/archives//html/Topband/2011-12/msg00643.html (8,776 bytes)

14. Re: Topband: 160 meters (score: 1)
Author: "n4is" <n4is@comcast.net>
Date: Mon, 2 Jan 2012 18:51:08 -0500
Hi Joel Dale and Andy You don't need to give away an arm or a leg for a good connector. I'm replacing all my cables and connectors for good ones made in US. http://www.air802.com/home.php http://www.
/archives//html/Topband/2012-01/msg00026.html (12,006 bytes)

15. Re: Topband: It is not so much propagation (score: 1)
Author: "N4IS" <n4is@comcast.net>
Date: Mon, 19 Mar 2012 16:27:16 -0400
Well, I need to disagree, I worked 257 new ones on 160m in the last 5 years from my city lot in Ft Lauderdale using a pair of Waller Flags, one vertical and another horizontal, however Doug NX4D wor
/archives//html/Topband/2012-03/msg00185.html (9,586 bytes)

16. Re: Topband: It is not so much propagation (score: 1)
Author: "N4IS" <n4is@comcast.net>
Date: Mon, 19 Mar 2012 18:12:01 -0400
"If I had room for 160m RX arrays" Hi Steve Congratulations for 1/7 acre you are a winner QRM fighter. May be you have room, one issue with RX arrays is how to reduce the noise and increase the signa
/archives//html/Topband/2012-03/msg00197.html (12,019 bytes)

17. Re: Topband: Detuning transmit antenna in receive (score: 1)
Author: "N4IS" <n4is@comcast.net>
Date: Sat, 16 Jun 2012 15:46:35 -0400
Tim "Trying to figure out what "detune" is" Excellent question. The ground is the most important part of the T antenna, without the ground the antenna became a 1/4 element isolated from ground and wo
/archives//html/Topband/2012-06/msg00125.html (7,555 bytes)

18. Re: Topband: TX ANT TO RX ANT COUPLING (score: 1)
Author: "N4IS" <n4is@comcast.net>
Date: Sun, 17 Jun 2012 21:37:09 -0400
Hi Bill The resonance element reradiate noise and also the signal. If you think about why a yagi works, all elements reradiate the signal from the driven elements, but what about on reception, . It i
/archives//html/Topband/2012-06/msg00151.html (8,695 bytes)

19. Re: Topband: Reducing Noise in the Shack (score: 1)
Author: "N4IS" <n4is@comcast.net>
Date: Sun, 24 Jun 2012 11:43:42 -0400
Hi guys Let me share what I've done about reducing noise in the Shack, not all station has this kind of configuration, you may not need it. 1- Tom is 100% right about common mode noise. I killed all
/archives//html/Topband/2012-06/msg00216.html (10,244 bytes)

20. Re: Topband: Laird ferrites (score: 1)
Author: "N4IS" <n4is@comcast.net>
Date: Sun, 1 Jul 2012 01:00:06 -0400
<I have found an off brand ferrite to perform well beyond my expectations> Control the quality of any product is expensive but it can assure that every single core has the same specification range. N
/archives//html/Topband/2012-06/msg00261.html (8,105 bytes)

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