- 1. Topband: end of thread - 27 days rotation Moon & Sun (score: 1)
- Author: cris blak <cyo3fff@yahoo.com>
- Date: Wed, 7 Mar 2007 06:39:47 -0800 (PST)
- Hello All, Thanks to few of you who post a comment on this subject. For me is not clear what is what (the Sun has an influence on the magnetosphere for sure and indirectly to the ionosphere but the m
- /archives//html/Topband/2007-03/msg00033.html (7,976 bytes)
- 2. Re: Topband: Moon and the Ionosphere : YO3FFF (score: 1)
- Author: cris blak <cyo3fff@yahoo.com>
- Date: Fri, 16 Mar 2007 05:23:01 -0700 (PDT)
- Carl, This could also be done with exisiting low frequency BC beacons that are there every day - for example, a W6 listening to an Asian beacon every day at the same time for a year as you suggested.
- /archives//html/Topband/2007-03/msg00057.html (10,356 bytes)
- 3. Re: Topband: Moon and the Ionosphere : YO3FFF (score: 1)
- Author: cris blak <cyo3fff@yahoo.com>
- Date: Fri, 16 Mar 2007 06:48:36 -0700 (PDT)
- Hello Roy, Thanks for the information from our friend Google:) I'm aware of those WEB pages and read theme all before. I don't know if GB3SSS is till on the air but, for the proposed experiment is ne
- /archives//html/Topband/2007-03/msg00059.html (10,105 bytes)
- 4. Topband: Inverted L & radials (score: 1)
- Author: cris blak <cyo3fff@yahoo.com>
- Date: Mon, 19 Mar 2007 08:50:49 -0700 (PDT)
- Hello, Last weekend I build an inverted L antenna as follow: a total of 38m wire (PVC isolated 2.5mm copper wire) , 13m vertical and 26m horizontal toward about 260 degree azimuth. it is feed by RG21
- /archives//html/Topband/2007-03/msg00084.html (8,803 bytes)
- 5. Re: Topband: Moon and the Ionosphere : YO3FFF (score: 1)
- Author: cris blak <cyo3fff@yahoo.com>
- Date: Mon, 19 Mar 2007 14:00:14 -0700 (PDT)
- Hello Tom, I already said that. In order to appreciate the variation of the signal (especially during a long period of time) on should refer to a calibrated source. This could be a signal stable gene
- /archives//html/Topband/2007-03/msg00089.html (12,633 bytes)
- 6. Re: Topband: Moon and the Ionosphere : YO3FFF (score: 1)
- Author: cris blak <cyo3fff@yahoo.com>
- Date: Mon, 19 Mar 2007 14:20:50 -0700 (PDT)
- Hello Tom, Tom Rauch <w8ji@contesting.com> wrote: How could we record the signal level, anyone know As I described in a previous e-mail, one can use a known signal generator trough a coupler mixing i
- /archives//html/Topband/2007-03/msg00090.html (9,151 bytes)
- 7. Re: Topband: Moon and the Ionosphere : YO3FFF (score: 1)
- Author: cris blak <cyo3fff@yahoo.com>
- Date: Tue, 20 Mar 2007 14:10:02 -0700 (PDT)
- Hello Tom, Actually I'm looking for the specific tool, not so much a general idea. OK. Sorry for the long "theoretical" explanation from the previous e-mail. You can try Radio SkyPipe. This is writte
- /archives//html/Topband/2007-03/msg00098.html (10,453 bytes)
- 8. Topband: Inverted L & radials=conclusion (score: 1)
- Author: cris blak <cyo3fff@yahoo.com>
- Date: Wed, 28 Mar 2007 01:47:17 -0700 (PDT)
- Hello all, First, thanks to all who answered for suggestions. As a conclusion, maybe to interest for further reading. INV. L is better than an INV. Vee for TXing. - the longer the vertical part, the
- /archives//html/Topband/2007-03/msg00133.html (8,620 bytes)
- 9. Re: Topband: question for modified inverted L (score: 1)
- Author: cris blak <cyo3fff@yahoo.com>
- Date: Mon, 2 Apr 2007 03:26:51 -0700 (PDT)
- Hello Ozer, The following situation were simulated on MMANA: Vertical part = 18m; slopping part from 18m to 32m = 21m segment; radials = 32pcs; Results: Z = 28 / -j32 Ohm G = 2.71 dBi Elevation angle
- /archives//html/Topband/2007-04/msg00013.html (7,914 bytes)
- 10. Topband: INV. L vs Vertical (score: 1)
- Author: cris blak <cyo3fff@yahoo.com>
- Date: Mon, 2 Apr 2007 05:17:25 -0700 (PDT)
- Hello all, I did some simulation on MMANA-GAL with INV. L and 1/4 WL vertical for 160m band. I want to share with you some findings and I'll be glad to debate your experience either "on-air" or in th
- /archives//html/Topband/2007-04/msg00015.html (9,234 bytes)
- 11. Re: Topband: VF drift in coax (score: 1)
- Author: cris blak <cyo3fff@yahoo.com>
- Date: Mon, 2 Apr 2007 05:43:36 -0700 (PDT)
- Hello Tom and all, I don't believe for a moment long term VF drift in foam cable is any more of a concern in foam coax as it is in solid dielectric coax. I can't even think of any reason that would b
- /archives//html/Topband/2007-04/msg00016.html (7,618 bytes)
- 12. Topband: QRN source and direction (score: 1)
- Author: cris blak <cyo3fff@yahoo.com>
- Date: Thu, 26 Apr 2007 01:01:03 -0700 (PDT)
- Hello all, Because I don't have a "beverage farm", I'm wondering if someone of you try to find the direction and place from where the QRN is coming at a certain time?! I'm asking this because the QRN
- /archives//html/Topband/2007-04/msg00130.html (7,635 bytes)
- 13. Topband: good propagation YO - JA 23.12.2007 (score: 1)
- Author: cris blak <cyo3fff@yahoo.com>
- Date: Mon, 24 Dec 2007 06:20:31 -0800 (PST)
- Hello all and Marry Xmas, Last night (23.12.2007) were a nice winter night and a good propagation toward JA from my side. 20 JA station are in the log now which is amazing considering my poor setup.
- /archives//html/Topband/2007-12/msg00171.html (7,869 bytes)
- 14. Topband: JA pile-up 01.01.2008 (score: 1)
- Author: cris blak <cyo3fff@yahoo.com>
- Date: Mon, 14 Jan 2008 00:55:10 -0800 (PST)
- Hello, Sorry to be late sending this report but, thought to be interesting for propagation enthusiasts. On the first evening of this year (2008) it was a very good opening toward JA from my side. Wit
- /archives//html/Topband/2008-01/msg00104.html (8,278 bytes)
- 15. Topband: Propagation on Nov. (score: 1)
- Author: cris blak <cyo3fff@yahoo.com>
- Date: Thu, 6 Nov 2008 13:38:14 -0800 (PST)
- Hello, I did try to post a message regarding the thread "Unusual Propagation" but was moderate for I don't understand the reason. Anyhow. Hoping this message will go through, I want to discuss a prop
- /archives//html/Topband/2008-11/msg00054.html (8,475 bytes)
- 16. Topband: MW good propagation now! (score: 1)
- Author: cris blak <cyo3fff@yahoo.com>
- Date: Thu, 20 Nov 2008 06:42:31 -0800 (PST)
- Hello, If this message will get through, then I want to let you know that right now there is a good propagation on MW (1557KHz) on a 1500Km E-W path in Europe. I receive France Info in the car with g
- /archives//html/Topband/2008-11/msg00130.html (6,844 bytes)
- 17. Topband: TP good CONDX now! (score: 1)
- Author: cris blak <cyo3fff@yahoo.com>
- Date: Wed, 26 Nov 2008 11:22:53 -0800 (PST)
- Hello, As previously notified you, today, with the Sun at 1 degree elevation I hear France Info (1557KHz) and the BBC (648KHz) loud and clear in the car. France Info about 1500Km E-W path and BBC abo
- /archives//html/Topband/2008-11/msg00231.html (8,343 bytes)
- 18. Topband: INV-L with traps (score: 1)
- Author: cris blak <cyo3fff@yahoo.com>
- Date: Fri, 25 Sep 2009 14:08:47 -0700 (PDT)
- Hello, I have an INV-L for 160m which is working fine along with its 30 radials. The vertical part is about 16m. I intend to add two traps in order to use it on 80m and 40m. Is there anybody who use
- /archives//html/Topband/2009-09/msg00115.html (7,340 bytes)
- 19. Re: Topband: INV-L with traps (score: 1)
- Author: cris blak <cyo3fff@yahoo.com>
- Date: Thu, 8 Oct 2009 10:50:34 -0700 (PDT)
- Hello all, Last weekend I succeed to install the two traps on my 160m INV-L to be used on 40 and 80m. The traps are made by RG58 coaxial cable wind up on 40mm plastic pipe. The 40m has 11 turns and t
- /archives//html/Topband/2009-10/msg00116.html (10,202 bytes)
- 20. Topband: INVL FSM 160m (score: 1)
- Author: cris blak <cyo3fff@yahoo.com>
- Date: Mon, 7 Dec 2009 03:27:57 -0800 (PST)
- Hello all, Yesterday I made a FSM (field strength measurement) on my INVL antenna with different configuration. The setup were TS450 as a transmitter with 10W (efective output power on CW VSWR = 1.2:
- /archives//html/Topband/2009-12/msg00082.html (8,643 bytes)
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