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101. Re: Topband: Re: S-meter (score: 1): Author: Herb Schoenbohm <herbs@vitelcom.net>; Date: Sat, 08 Jan 2005 13:55:11 -0400; Jeff Maass wrote: S-meters have little meaning when using receiving antennas. The most copiable signals are often not moving the needle (or bars) at all, but are R5. Jeff, Here in the tropics the S m; /archives//html/Topband/2005-01/msg00134.html (9,308 bytes)
102. Re: Topband: feeding a unipole (score: 1): Author: Herb Schoenbohm <herbs@vitelcom.net>; Date: Thu, 13 Jan 2005 00:49:12 -0400; john wrote: Hi. Is there anyone who has used a folded unipole with sucess who would like to share with me, the proper method to feed it to get a decent match some say a L/C network if so what would b; /archives//html/Topband/2005-01/msg00191.html (9,878 bytes)
103. Re: Topband: Hat Loaded vs Inverted-L Vertical (score: 1): Author: "Herbert Schoenbohm" <herbs@vitelcom.net>; Date: Wed, 19 Jan 2005 16:01:38 -0400; Mike, IMHO the two mast approach is worth the extra effort if you make a "T" rather than an inverted "L". You will end up with a higher feed impedance, greater efficiency (depending on the wire lengt; /archives//html/Topband/2005-01/msg00248.html (7,853 bytes)
104. Fw: Topband: KP2ZZ in CQWW 160 (score: 1): Author: "Herbert Schoenbohm" <herbs@vitelcom.net>; Date: Wed, 2 Feb 2005 09:58:04 -0400; "KP2ZZ had a very good signal both days here but appeared to hear nobody from Europe at all. at least whenever I tuned him in or called. Was the noise extremely bad in the West- Indies this weekend ?; /archives//html/Topband/2005-02/msg00034.html (8,062 bytes)
105. [Fwd: Re: Topband: toploading of shunt fed tower] (score: 1): Author: Herb Schoenbohm <herbs@vitelcom.net>; Date: Tue, 08 Feb 2005 22:53:31 -0400; Jim Hoge wrote: I have a 70' crankup tower that I am considering shunt-feeding for 160m. The question is this: The tower supports a Tennadyne T-12 12 element log periodic antenna that is not electric; /archives//html/Topband/2005-02/msg00116.html (8,716 bytes)
106. Topband: [Fwd: Your "echo " on 160] (score: 1): Author: Herb Schoenbohm <herbs@vitelcom.net>; Date: Mon, 14 Feb 2005 11:41:49 -0400; Dear Topander, Do LDE's occur on 160? Herb -- Original Message -- Subject: Your "echo " on 160 Date: Sun, 13 Feb 2005 05:51:56 EST From: BarryABoothe@aol.com To: herbs@vitelcom.net Hi Herb, I'm guess; /archives//html/Topband/2005-02/msg00160.html (7,664 bytes)
107. Re: Topband: Inverted-L Bazooka type antenna (score: 1): Author: "Herbert Schoenbohm" <herbs@vitelcom.net>; Date: Wed, 16 Feb 2005 17:02:40 -0400; Charlie, WD5BJT asks: I have heard about an Inverted-L Bazooka type antenna that is a 1/4 wave long. It is supposed to be lower in noise than the true inverted-l. IMHO there is little to gain, and no; /archives//html/Topband/2005-02/msg00176.html (7,758 bytes)
108. Re: Topband: Support Lines Crossing ABOVE 14KV Lines (score: 1): Author: "Herbert Schoenbohm" <herbs@vitelcom.net>; Date: Wed, 23 Feb 2005 09:17:30 -0400; The local power company here provides HV insulating sleeves for construction projects and building renovation where the 14 KV line runs very close by. The streets in the historic district are very na; /archives//html/Topband/2005-02/msg00220.html (8,067 bytes)
109. Re: Topband: Preamp power supply (score: 1): Author: "Herbert Schoenbohm" <herbs@vitelcom.net>; Date: Fri, 25 Feb 2005 10:28:04 -0400; Paul, There are a few things you could try to reduce or eliminate the common mode noise connection: (1) Place the power supply at the antenna and don't power it with DC down the coax but rather run A; /archives//html/Topband/2005-02/msg00231.html (9,122 bytes)
110. Topband: RX Antenna nul discovered (score: 1): Author: "Herbert Schoenbohm" <herbs@vitelcom.net>; Date: Thu, 10 Mar 2005 13:25:16 -0400; "..... for the past several years I have had real problems trying to work Herb, KV4FZ. I call and call without success. Eventually Herb may hear me but with obvious difficulty at his end. I had the s; /archives//html/Topband/2005-03/msg00114.html (9,627 bytes)
111. Re: Topband: Top-band Prop along grayline (score: 1): Author: Herb Schoenbohm <herbs@vitelcom.net>; Date: Sat, 12 Mar 2005 02:36:00 -0400; But Earl and Tom......I am plotting out a path to VK6HD and we are almost at antipodes. (Every path is a direct path would it not be for day and night impacting and effecting the propagation.) Accord; /archives//html/Topband/2005-03/msg00129.html (8,752 bytes)
112. Re: Topband: Top-band Prop along grayline (score: 1): Author: Herb Schoenbohm <herbs@vitelcom.net>; Date: Sun, 13 Mar 2005 18:11:15 -0400; I have worked VK6HD twice in the past two mornings as our SR and SS coincide and would like to add this observation: SP Bearing: 181.7 degrees SP Distance: 11,448 miles KV4 SR 1028Z VK6 SS 1027 QSO F; /archives//html/Topband/2005-03/msg00153.html (9,216 bytes)
113. Re: Topband: Better low band conditions? (score: 1): Author: Herb Schoenbohm <herbs@vitelcom.net>; Date: Wed, 16 Mar 2005 01:07:52 -0400; Bob, They without any doubt in my mind getting better and better. This weekday (non-contest) evening I worked a pile up of DX stations calling me for several hours (included a 4X4 and the majority Ea; /archives//html/Topband/2005-03/msg00164.html (7,898 bytes)
114. Re: Topband: Broadband vertical (score: 1): Author: "Herbert Schoenbohm" <herbs@vitelcom.net>; Date: Tue, 5 Apr 2005 12:35:10 -0300; shunt-feeding. Barry, I found here that the bandwidth of a CLC network on a shunt fed top loaded 75 foot tower was too restrictive. 10 to 20 KHz without retuning. When I went to a wire cage spaced 3; /archives//html/Topband/2005-04/msg00042.html (7,458 bytes)
115. Re: Topband: Broadband vertical (score: 1): Author: Herb Schoenbohm <herbs@vitelcom.net>; Date: Wed, 06 Apr 2005 20:09:23 -0400; My change from a single wire to a three wire cage unipole certainly made my antenna bandwidth useable. I think several NAB tech papers on this suggest that the copper wire cage also increases the ove; /archives//html/Topband/2005-04/msg00058.html (9,384 bytes)
116. Re: Topband: Notes on early JA to East Coast QSO's (score: 1): Author: Herb Schoenbohm <herbs@vitelcom.net>; Date: Thu, 22 Jan 2004 18:44:03 -0400; I remember this QSO with KL7FRY well because to me (W0VXO) working Earl on Shemya was almost like working JA on TopBand. It encouraged me to believe it could happen even from the tundra of Minnesota; /archives//html/Topband/2005-07/msg00007.html (8,908 bytes)
117. Re: Topband: Folded Marconi Antenna (score: 1): Author: Herb Schoenbohm <herbs@vitelcom.net>; Date: Sun, 24 Jul 2005 09:49:54 -0400; A version of the folded back marconic top exists in a US Military handbook but with only the far end tied together. The total length of the flat top (with one end of the two wires connected and a sin; /archives//html/Topband/2005-07/msg00013.html (8,247 bytes)
118. Topband: Delta Model (score: 1): Author: Herb Schoenbohm <herbs@vitelcom.net>; Date: Sat, 30 Jul 2005 18:09:21 -0400; Tod, Please check Earl's (K6SE) delta design for the FO0AAA operation it works very well for me and is easily rotatable with pre set ground stakes and a single pole support. A model of Earl's excelle; /archives//html/Topband/2005-07/msg00027.html (6,984 bytes)
119. Re: Topband: Improving efficiency of a short vertical antenna? (score: 1): Author: Herb Schoenbohm <herbs@vitelcom.net>; Date: Thu, 18 Aug 2005 16:58:46 -0400; If you connect around the top hat wires together before the insulator (wire to wire to wire) you should be able to bring the base impedeance up a few more ohms by creating a bigger hat in the process; /archives//html/Topband/2005-08/msg00024.html (8,301 bytes)
120. Re: Topband: Tuning elevated radials (score: 1): Author: "Herb Schoenbohm" <herbs@vitelcom.net>; Date: Sun, 18 Sep 2005 13:02:27 -0700; What happens if the elavated radials have a ground connection at the far end, prefereably slopng to earth? I know this is against conventional "Marconi" wisdom but even going so far as running a few; /archives//html/Topband/2005-09/msg00058.html (9,338 bytes)

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