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References: [ +from:herbs@surfvi.com: 152 ]

Total 152 documents matching your query.

101. Re: Topband: comparison (score: 1)
Author: Herb Schoenbohm <herbs@surfvi.com>
Date: Wed, 24 Dec 2008 18:43:22 -0400
Change it from a inverted L to a T and you shouldl notice a big difference working DX if you have a good radial system under the vertical drop. 73 Herb Schoenbohm, KV4FZ _____________________________
/archives//html/Topband/2008-12/msg00209.html (7,696 bytes)

102. Re: Topband: Matching Transformer (score: 1)
Author: Herb Schoenbohm <herbs@surfvi.com>
Date: Sat, 27 Dec 2008 10:17:30 -0400
Rising in disagreement with one of the best audio engineers on the planet is dangerous....but "fools rush in where angels fear to tread"... Here it is:......a ROG or radial on ground (attached only t
/archives//html/Topband/2008-12/msg00242.html (9,176 bytes)

103. Re: Topband: (no subject) (score: 1)
Author: Herb Schoenbohm <herbs@surfvi.com>
Date: Sun, 28 Dec 2008 07:08:44 -0400
Jeff W7JW asked: BOG's work and can be shorter but the overall signal pickup and gain is considerably less and a good pre- amp is very important. The ROG radials act more like a big capacitor to grou
/archives//html/Topband/2008-12/msg00250.html (7,874 bytes)

104. Re: Topband: Matching Transformer (score: 1)
Author: Herb Schoenbohm <herbs@surfvi.com>
Date: Mon, 29 Dec 2008 19:41:13 -0400
Some use impedance bridges like the MFJ unit to determine matching characteristics and can do so over a large range of frequencies. But in the performance department I use the simple and inexpensive
/archives//html/Topband/2008-12/msg00273.html (10,259 bytes)

105. Re: Topband: MFJ-259 Antenna Analyzer (score: 1)
Author: Herb Schoenbohm <herbs@surfvi.com>
Date: Sun, 04 Jan 2009 09:49:37 -0400
The MFJ-259B is what you want not the older 259. Bob I saw this one on E Bay and was tempted to bid....but it really is not what you need when a small VSWR meter at the antenna feed point can tell yo
/archives//html/Topband/2009-01/msg00017.html (8,832 bytes)

106. Re: Topband: Improving the Fabulous CQ 160 Contest (score: 1)
Author: "Herbert Schoenbohm" <herbs@surfvi.com>
Date: Wed, 7 Jan 2009 11:11:26 -0400
In short, "If it Ain't Broke don't try to fix it." The CQ 160 Meter, contest ever since 160 meter pioneer Charles O Brien, W2EQS put the idea together, has consistenly remained very popular and does
/archives//html/Topband/2009-01/msg00047.html (11,165 bytes)

107. Re: Topband: Improving the Fabulous CQ 160 Contest (score: 1)
Author: "Herbert Schoenbohm" <herbs@surfvi.com>
Date: Wed, 7 Jan 2009 14:53:40 -0400
How do you rationalize that, Herb? Grid squares would equalize the availability of mults (ignoring the argument that grids are smaller the further you go north/south of the equator) and make the cont
/archives//html/Topband/2009-01/msg00055.html (10,124 bytes)

108. Re: Topband: BOG (score: 1)
Author: "Herbert Schoenbohm" <herbs@surfvi.com>
Date: Fri, 9 Jan 2009 16:06:24 -0400
I am not a Beverage Guru but can tell you that BOG's work and they don't need to be as long as conventional Beverages because, as I understand it the VF is a bigger factor, wioth the wire huging the
/archives//html/Topband/2009-01/msg00079.html (8,146 bytes)

109. Re: Topband: CQ 160 weird ideas (score: 1)
Author: "Herbert Schoenbohm" <herbs@surfvi.com>
Date: Fri, 16 Jan 2009 09:44:33 -0400
signals from the USA west coast arer just lost inbetween them. somewhere Tree..Split freqency was the way we had some DX in the 60's especially JA's and also due to LORAN restrictions. Indeed today w
/archives//html/Topband/2009-01/msg00145.html (10,500 bytes)

110. Re: Topband: CQ 160 weird ideas (score: 1)
Author: Herb Schoenbohm <herbs@surfvi.com>
Date: Sat, 17 Jan 2009 13:53:02 -0400
JC, If I recall correctly one of the key hopes of the founding fathers (CQ WW 160) in this case Charlie O Brian, W2EQS and W1BB, Stew Perry was to increase both domestic and DX participation in a sig
/archives//html/Topband/2009-01/msg00170.html (10,338 bytes)

111. Re: Topband: RW0CN Post SR peak (score: 1)
Author: "Herbert Schoenbohm" <herbs@surfvi.com>
Date: Mon, 9 Feb 2009 16:01:43 -0400
UA0 is one of the most difficult paths for me out here in the Eastern Caribbean as the signal path goes through the seemingly non-penetrable polar region. Yet today I worked, among a bunch of new JA'
/archives//html/Topband/2009-02/msg00032.html (8,660 bytes)

112. Re: Topband: QSB surfing (score: 1)
Author: "Herbert Schoenbohm" <herbs@surfvi.com>
Date: Thu, 12 Feb 2009 11:02:16 -0400
Gary wrote.....> him send it right before going on. The reason for this - is that once you send an RST - and it is copied on the other end - the QSO is going to "complete" without any control on your
/archives//html/Topband/2009-02/msg00067.html (8,178 bytes)

113. Re: Topband: Chemical ground rod treatment to decrease resistance (score: 1)
Author: "Herbert Schoenbohm" <herbs@surfvi.com>
Date: Wed, 18 Feb 2009 08:49:40 -0400
publications) that adding chemicals around a ground rod decreases the RF ground resistance. copper sulfate and sodium chloride (common salt) being the second and third choice. Mike, Use an abundance
/archives//html/Topband/2009-02/msg00102.html (7,978 bytes)

114. Re: Topband: RX antenna switching (score: 1)
Author: "Herbert Schoenbohm" <herbs@surfvi.com>
Date: Wed, 4 Mar 2009 09:16:15 -0400
To switch RX antennas I highly recommend the MCM (1-800-543-4330) push button (p/n 33-1490) high isolation A/B/C/ three port switch with F connectors. The cost for a single unit is $13.69 and the ad
/archives//html/Topband/2009-03/msg00009.html (9,898 bytes)

115. Re: Topband: Tower-attached guy wires - max length for driven tower? (score: 1)
Author: "Herbert Schoenbohm" <herbs@surfvi.com>
Date: Fri, 27 Mar 2009 16:33:23 -0400
decide Since Brian, The local power company may be able to sell you or give you some nice super strong fiberglass HV insulators which are required at every guy connection to the tower. I use them als
/archives//html/Topband/2009-03/msg00090.html (9,781 bytes)

116. Topband: Guy Wire Connection to Tower (score: 1)
Author: herbs@surfvi.com
Date: Sun, 29 Mar 2009 04:17:58 -0400
Yes you should insulate every guy connection to the tower as they would have transmit power coupled into them if connected to the tower. Some re radiation, mostly skyward would probably occur and was
/archives//html/Topband/2009-03/msg00095.html (7,056 bytes)

117. Re: Topband: 160m Sloper on Crank-up tower (score: 1)
Author: Herb Schoenbohm <herbs@surfvi.com>
Date: Mon, 20 Apr 2009 18:41:24 -0400
73 and good luck.......Herb, KV4FZ _______________________________________________ Topband mailing list Topband@contesting.com http://lists.contesting.com/mailman/listinfo/topband
/archives//html/Topband/2009-04/msg00060.html (8,259 bytes)

118. Topband: [Fwd: Re: EP-----IRAN Frequency Operations on TopBand/160 meters] (score: 1)
Author: Herb Schoenbohm <herbs@surfvi.com>
Date: Sat, 06 Jun 2009 14:33:29 -0400
I recall working EP2TA, on 160 in the 70's but I was not able track down the QSL manager. But recall he was active and not difficult to work. Maybe someone could send me more information on this if t
/archives//html/Topband/2009-06/msg00027.html (7,715 bytes)

119. Re: Topband: Twin Lead Marconi Antenna (score: 1)
Author: Herb Schoenbohm <herbs@surfvi.com>
Date: Sat, 13 Jun 2009 21:55:34 -0400
73 Herb, KV4FZ _______________________________________________ Topband mailing list Topband@contesting.com http://lists.contesting.com/mailman/listinfo/topband
/archives//html/Topband/2009-06/msg00048.html (8,805 bytes)

120. Topband: [Fwd: Re: Twin Lead Marconi Antenna]] (score: 1)
Author: Herb Schoenbohm <herbs@surfvi.com>
Date: Thu, 18 Jun 2009 08:08:21 -0400
reduced by a 4 to 1 base impedance multiplication factor has been disputed. There also is a significant benefit to increase B/W with shortened towers where in AM applications the B/W is so narrow th
/archives//html/Topband/2009-06/msg00064.html (8,763 bytes)


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