Search String: Display: Description: Sort:

Results:

References: [ +from:herbert.schoenbohm@gmail.com: 184 ]

Total 184 documents matching your query.

121. Topband: No power line noise in any direction. (score: 1)
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Tue, 16 Jan 2018 16:53:13 -0400
After two Cat 5 Hurricanes, Irma and Maria, devastated the Vi I have been able to get back to listening on topband with a few new reversible DX-Engineering Beverage packages. The linemen from all ove
/archives//html/Topband/2018-01/msg00217.html (7,070 bytes)

122. Re: Topband: [TowerTalk] 160 vertical question (Top Hat) (score: 1)
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Mon, 5 Feb 2018 17:43:00 -0400
Paul, By doing this you are actually tuning out the inductance caused by the longer than resonant wire by adding a series capacitance near the same value. Herb, KV4FZ _________________ Topband Reflec
/archives//html/Topband/2018-02/msg00048.html (8,908 bytes)

123. Re: Topband: Does flooding radial field help (score: 1)
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Sat, 24 Feb 2018 13:44:47 -0400
Jack, Last night in the CQ 160 SSB contest I called CQ for hours and only worked a few stations mostly within a few hundred miles. Eu's were coming in but none heard me. Also, I could not hold a freq
/archives//html/Topband/2018-02/msg00183.html (9,559 bytes)

124. Re: Topband: Does flooding radial field help (score: 1)
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Sat, 24 Feb 2018 14:33:55 -0400
The was certainly short skip within 300-400 miles and I work several Carribean station within that range. However, the unusual part of that was an Italian who kept calling CQ where is was calling CQ
/archives//html/Topband/2018-02/msg00185.html (9,666 bytes)

125. Re: Topband: Excessive noise on beverages (score: 1)
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Tue, 6 Mar 2018 14:21:37 -0400
Dave, You might be able to take the TX tower shunt wire to ground with a relay and change its resonant frequency. Another solution might be a cage wire feed which when taking directly to the ground m
/archives//html/Topband/2018-03/msg00009.html (11,121 bytes)

126. Re: Topband: FW: Excessive noise on beverages (score: 1)
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Tue, 6 Mar 2018 14:42:14 -0400
Great work Gary! This is probably a way that is much less expensive than the commercial version of doing this. https://www.lbagroup.com/products/detunipole-detuning-skirt-kit Herb, KV4FZ ____________
/archives//html/Topband/2018-03/msg00010.html (11,684 bytes)

127. Re: Topband: Excessive noise on beverages (score: 1)
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Wed, 7 Mar 2018 07:37:45 -0400
Wes, Only a guess...... If the feed line going to the inverted Vee was shorted at the shack end and the feedline was a halfwave long, that RF short would appear at or near the top of inverted Vee. Th
/archives//html/Topband/2018-03/msg00017.html (12,690 bytes)

128. Topband: 3C0W signal on Topband (score: 1)
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Fri, 23 Mar 2018 10:20:51 -0400
I have no explanation for this but it is clearly the best signal every heard from this part of the world on 160 from 3C0W was so strong i had to record it. Jon, AA1K has put it up on his website http
/archives//html/Topband/2018-03/msg00084.html (6,746 bytes)

129. Re: Topband: low inv-vee (score: 1)
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Thu, 29 Mar 2018 08:05:36 -0400
Roger, near your dawn your signal is very good here over the years on 160. That is the time when low dipoles seem to really work well. Herb, KV4FZ _________________ Topband Reflector Archives - http:
/archives//html/Topband/2018-03/msg00129.html (9,047 bytes)

130. Re: Topband: Wednesday 160m DX Activity Night (score: 1)
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Thu, 29 Mar 2018 20:54:39 -0400
Roger, I heard you well on 1827 tonight but called for about 30 minutes and just gave up. Your signal in the QRN was 369 most of the time, High tropical QRN here. _________________ Topband Reflector
/archives//html/Topband/2018-03/msg00148.html (10,480 bytes)

131. Re: Topband: PY1RO (score: 1)
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Sun, 6 May 2018 14:54:11 -0400
Devasting news about Rolf Rasp PY1RO. I went to his home in Niteroi across the harbor from Rio de Janeiro in 1965 with a steamer trunk loaded with some Drake Twins to get on the air on top band. Befo
/archives//html/Topband/2018-05/msg00004.html (8,606 bytes)

132. Topband: Beverage selector switch via IP (score: 1)
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Mon, 9 Jul 2018 20:22:30 -0300
Looked all over for one of these so my Beverages could be selected remotely via an IP address. Is there such a device marketed anywhere? Herb, KV4FZ _________________ Topband Reflector Archives - htt
/archives//html/Topband/2018-07/msg00046.html (7,113 bytes)

133. Re: Topband: KH1 in texas on 160m (score: 1)
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Mon, 23 Jul 2018 17:38:46 -0300
This is how KH1/KH7Z sounded on 160 in the Virgin Islands. They were much stronger than the W6's calling them. Antenna here is 600 foot Beverage at 270 degrees and IC-7300. Herb Schoenbohm, KV4FZ ___
/archives//html/Topband/2018-07/msg00143.html (8,130 bytes)

134. Topband: Shunt Fed Tower Question (score: 1)
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Thu, 2 Aug 2018 10:04:02 -0300
I recently installed a 2 element 40-meter beam and a 4 element 20-meter beam on top of a 90-foot tower which I use for TX on Topband. The tower is cage fed with a 3-wire cage spaced24 inches around t
/archives//html/Topband/2018-08/msg00018.html (7,368 bytes)

135. Re: Topband: Shunt Fed Tower Question (score: 1)
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Tue, 7 Aug 2018 10:02:02 -0300
Herbert Schoenbohm <herbert.schoenbohm@gmail.com> Thu, Aug 2, 10:04 AM (5 days ago) to TopBand I recently installed a 2 element 40-meter beam and a 4 element 20-meter beam on top of a 90-foot tower w
/archives//html/Topband/2018-08/msg00071.html (8,827 bytes)

136. Re: Topband: Radial wire (score: 1)
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Wed, 5 Sep 2018 14:00:05 -0300
For a cheap solution for radials is to use buried galvanized barbed wire. It is available for pennies a foot. A preferred way of putting it in is to use a is a Ditch Witch with a vibrating plow attac
/archives//html/Topband/2018-09/msg00055.html (10,493 bytes)

137. Re: Topband: Radial wire (score: 1)
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Wed, 5 Sep 2018 14:10:11 -0300
1/4 mile for $30 is reasonable and would work well for radials. https://www.ebay.com/itm/Acorn-International-EFW1714-1-4-Mile-17-Gauge-Galvanized-Fence-Wire/152465194663?epid=4017419194&hash=item237f
/archives//html/Topband/2018-09/msg00058.html (11,209 bytes)

138. Re: Topband: Radial wire (score: 1)
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Thu, 6 Sep 2018 17:43:54 -0300
Rob, Not barbed wire, but electric fence wire. This wire stays good for decades. Look at the horse and cattle farms around you. It has the same conductivity as your galvanized steel tower. Nor does a
/archives//html/Topband/2018-09/msg00071.html (9,507 bytes)

139. Re: Topband: Radial Wire (score: 1)
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Fri, 7 Sep 2018 19:35:58 -0300
Roger posted.....":but I would emphasize that WD1A is horrible for bi-directional Beverages as the loss is excessive in the transmission line mode." Roger that is clearly the case as I have found her
/archives//html/Topband/2018-09/msg00078.html (9,833 bytes)

140. Re: Topband: [TowerTalk] Advise needed on phased beverages (score: 1)
Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date: Tue, 11 Sep 2018 12:27:12 -0300
Jim, yes, I suspected they might interact of course. But can I avoid it? If the feedlines are a half wave or multiples of a half wave you should try terminating the unused shack end. This electricall
/archives//html/Topband/2018-09/msg00079.html (13,663 bytes)

Current List: 121 - 140
Page: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10]
This search system is powered by Namazu