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References: [ +from:W4TV@subich.com: 17 ]

Total 17 documents matching your query.

1. Re: Topband: Simplified LOTW instructions in response to manyrequests (score: 1)
Author: "Joe Subich, W4TV" <W4TV@subich.com>
Date: Sat, 1 Apr 2006 13:03:19 -0500
Alternate step c: Go to https://p1k.arrl.org/lotwuser/default and log-on click, "upload file," select My Documents/lotw/<filename>.tq8 and click "upload." Depending on how busy LotW is, you can often
/archives//html/Topband/2006-04/msg00004.html (8,268 bytes)

2. Topband: YV5LIX SK (score: 1)
Author: "Joe Subich, W4TV" <W4TV@subich.com>
Date: Fri, 21 Apr 2006 19:08:02 -0400
* YX0A operator reported SK, DXpedition adopts memorial call sign: YX0A Aves Island DXpedition team member Jose "Joe" Manuel Valdes Rodriguez, YV5LIX, reportedly died on the tiny Caribbean island Ap
/archives//html/Topband/2006-04/msg00046.html (7,104 bytes)

3. Re: Topband: Are US Possession DX? (score: 1)
Author: "Joe Subich, W4TV" <w4tv@subich.com>
Date: Wed, 28 Jun 2006 17:40:50 -0400
Herb, So why was it not listed in the proper category (VI Section) instead of not being listed? The rules are suspiciously silent on the status of US Possessions. However, multipliers are W/VE sectio
/archives//html/Topband/2006-06/msg00067.html (7,101 bytes)

4. Re: Topband: Grounded Tower (score: 1)
Author: "Joe Subich, W4TV" <w4tv@subich.com>
Date: Fri, 4 Aug 2006 16:03:12 -0400
Jim, you've opened a real can of worms. You can't say there is "data" to the contrary ... there may be legend, anecdote or even model studies but there are no validly conducted field strength studies
/archives//html/Topband/2006-08/msg00019.html (10,195 bytes)

5. Re: Topband: elevated radials (score: 1)
Author: "Joe Subich, W4TV" <w4tv@subich.com>
Date: Sat, 5 Aug 2006 11:37:09 -0400
That's about right for an 80 meter system. The N7CL work that N4HY and N2EA reference indicates that elevating the "ground plane" 1/4 wave above ground gets the coupling into the soil down to insigni
/archives//html/Topband/2006-08/msg00031.html (8,477 bytes)

6. Re: Topband: Measuring field strength (for the purposeofradialevaluation) (score: 1)
Author: "Joe Subich, W4TV" <w4tv@subich.com>
Date: Sun, 24 Dec 2006 09:18:09 -0500
Dave, The "problem" with simulation is the assumption that ground (earth) is homogeneous and uniform. With "real" ground this is certainly not the case - probably even with (relatively) large open ar
/archives//html/Topband/2006-12/msg00270.html (8,790 bytes)

7. Re: Topband: Core for K9AY loop transformer (score: 1)
Author: "Joe Subich, W4TV" <w4tv@subich.com>
Date: Wed, 28 Mar 2007 22:00:52 -0400
and Be careful of over simplification. Because feedlines can (and often are) several wavelengths long (particularly on the higher bands), you need to specify ranges here. Once the line is longer than
/archives//html/Topband/2007-03/msg00148.html (9,220 bytes)

8. Re: Topband: Upon further examination of powering 26.5V relayswith12V (score: 1)
Author: "Joe Subich, W4TV" <w4tv@subich.com>
Date: Fri, 6 Apr 2007 08:39:43 -0400
All Electronics has a wide variety of "wall wart" supplies: www.allelectronics.com/cgi-bin/category/815/Wall_Transformers.html While most are US standards there are some with "European" plugs. There
/archives//html/Topband/2007-04/msg00042.html (8,338 bytes)

9. Re: Topband: RX 4 square (score: 1)
Author: "Joe Subich, W4TV" <w4tv@subich.com>
Date: Thu, 23 Aug 2007 08:51:59 -0400
Mike, This is only true if the bandwidth is determined in the detector as happens with a DSP demodulation. Since most amateur transceivers set the demodulated bandwidth with a crystal or mechanical f
/archives//html/Topband/2007-08/msg00098.html (11,480 bytes)

10. Re: Topband: Transceiver for 160 (score: 1)
Author: "Joe Subich, W4TV" <w4tv@subich.com>
Date: Fri, 19 Oct 2007 11:19:16 -0400
Nothing against the Inrad roofing filter mods but do the W8JI noise blanker mod first (it involves moving one resistor). You may find that the IMD issues are due to IMD generation in the noise blanke
/archives//html/Topband/2007-10/msg00088.html (8,430 bytes)

11. Re: Topband: Elevated Radial Efficiency - an inordinately long post (score: 1)
Author: "Joe Subich, W4TV" <w4tv@subich.com>
Date: Fri, 30 Nov 2007 10:15:14 -0500
All three of these systems raise the base and elevated radials to a point at which they can be considered somewhat independent of the earth. The behavior is expected and consistent with the work done
/archives//html/Topband/2007-11/msg00272.html (10,713 bytes)

12. Re: Topband: Vertical array (score: 1)
Author: "Joe Subich, W4TV" <w4tv@subich.com>
Date: Thu, 13 Dec 2007 12:46:27 -0500
Mike, This is a perfect application for a box like the MFJ "noise canceller" or the DX Engineering "Noise Canceling Controller" with a pair (or three) active antennas. Three antennas (one common, the
/archives//html/Topband/2007-12/msg00110.html (8,284 bytes)

13. Re: Topband: Radial wire (score: 1)
Author: "Joe Subich, W4TV" <w4tv@subich.com>
Date: Fri, 11 Apr 2008 09:40:03 -0400
Also check surplus houses. For example, Skycraft in Orlando FL (www.skycraftsurplus.com) lists a 1000' spool of teflon covered spools of bare #16 stranded copper (braided) and PVC insulated #18 (if I
/archives//html/Topband/2008-04/msg00033.html (7,492 bytes)

14. Re: Topband: Transmit/receive logisitics... (score: 1)
Author: "Joe Subich, W4TV" <w4tv@subich.com>
Date: Mon, 7 Jul 2008 18:34:59 -0400
Steve, The TS-830 has the ability to do a separate receive antenna without modification. Look at the Transverter jack (DIN8/262) - pin 8 comes from the T/R relay and pin 5 goes to the receiver. Add a
/archives//html/Topband/2008-07/msg00058.html (9,233 bytes)

15. Re: [Antennaware] New K9AY Observations (score: 1)
Author: "Joe Subich, W4TV" <w4tv@subich.com>
Date: Tue, 14 Oct 2008 10:19:25 -0400
I would also suspect re-radiation from the inverted L - particularly since directivity falls apart as the frequency moves closer to the "resonant" frequency of the inverted L. The vertical wire on t
/archives//html/Topband/2008-10/msg00098.html (9,285 bytes)

16. Re: [RTTY] 160 (score: 1)
Author: "Joe Subich, W4TV" <w4tv@subich.com>
Date: Tue, 25 Nov 2008 00:42:32 -0500
This is exactly the problem ... ARRL 160 has been there for 30+ years and generally fills the band from 1800 to 1875 +/- from before sunset on the US east coast until nearly sunrise on the west coast
/archives//html/Topband/2008-11/msg00203.html (7,174 bytes)

17. Re: Topband: Microwave Tower on 160 meters (score: 1)
Author: "Joe Subich, W4TV" <w4tv@subich.com>
Date: Thu, 25 Dec 2008 10:56:20 -0500
The article on the Lazy V array for 160 meters was by K3LR in QST, August 1994 pages 36-38. If you are an ARRL member you can download the article through the ARRL Periodicals Archive Search at www.a
/archives//html/Topband/2008-12/msg00218.html (7,234 bytes)


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