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Total 6 documents matching your query.

1. Topband: Preamp Placement? (score: 1): Author: Chris Maness <christopher.maness@gmail.com>; Date: Sun, 16 Jan 2022 07:09:25 -0800; Do preamps need to be close to electrically small mag loops to maximize SNR from common mode RFI? I would imagine in theory yes, but in application I have no experience to draw from. Thanks, Chris KQ; /archives//html/Topband/2022-01/msg00091.html (6,921 bytes)
2. Re: Topband: Preamp Placement? (score: 1): Author: William Cromwell <wrcromwell@gmail.com>; Date: Sun, 16 Jan 2022 10:47:31 -0500; Hi, I don't use a preamp with my mag-loops. Why do you? 73, Bill KU8H bark less - wag more On 1/16/22 10:09 AM, Chris Maness wrote: Do preamps need to be close to electrically small mag loops to maxi; /archives//html/Topband/2022-01/msg00092.html (6,981 bytes)
3. Re: Topband: Preamp Placement? (score: 1): Author: Nick Hall-Patch via Topband <topband@contesting.com>; Date: Tue, 18 Jan 2022 17:12:10 +0000; Haven't seen much in the way of public replies to this, so hope that you've got some private ones. For a small mag loop, I'd use the preamp at the loop, especially if your feed line is coax. 73 Nick; /archives//html/Topband/2022-01/msg00112.html (8,499 bytes)
4. Re: Topband: Preamp Placement? (score: 1): Author: David Harmon <k6xyz@sbcglobal.net>; Date: Tue, 18 Jan 2022 17:30:40 +0000 (UTC); My loop has an amp located at the loop but the sig at the radio was waaay down.I added a DXE broadband amp at the operating desk to get the sigs back to parity with my vertical.An internal preamp in; /archives//html/Topband/2022-01/msg00113.html (9,101 bytes)
5. Topband: Preamp Placement? (score: 1): Author: "Roger Kennedy" <roger@wessexproductions.co.uk>; Date: Tue, 18 Jan 2022 12:34:44 -0500; I use a 6ft diameter 4-turn loop as my 160m DX Receive antenna . . . If it's only used on receive, you can easily make a tiny transformer between the Loop and the coax . . . so Common Mode pickup wou; /archives//html/Topband/2022-01/msg00114.html (7,454 bytes)
6. Re: Topband: Preamp Placement? (score: 1): Author: Wes <wes_n7ws@triconet.org>; Date: Tue, 18 Jan 2022 15:15:52 -0700; On 1/18/2022 10:30 AM, David Harmon wrote: .... even though I have a TS-890 I have not tried the preamp with the DXE amp shutoff. Why not? It's a button push. Wes N7WS _________________ Searchable; /archives//html/Topband/2022-01/msg00115.html (7,607 bytes)

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