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Total 4 documents matching your query.

1. Topband: DSP-based technology (score: 1): Author: Doug Mein <mein.doug@gmail.com>; Date: Sun, 17 Aug 2008 22:48:12 -0400; Greetings Topbanders, First of all, I wanted to thank the many people who responded, both on and off line to my question about the need to have a ground screen beneath a well-radialled Topband vertic; /archives//html/Topband/2008-08/msg00042.html (7,766 bytes)
2. Re: Topband: DSP-based technology (score: 1): Author: "Jeff Maass" <jmaass@k8nd.com>; Date: Sun, 17 Aug 2008 23:50:33 -0400; Doug: Victor, K1LT, has been doing some neat work with Beam Steering using SDRs. See his various materials at http://www.k1lt.com/. 73, Jeff K8ND _______________________________________________ Topb; /archives//html/Topband/2008-08/msg00043.html (8,527 bytes)
3. Re: Topband: DSP-based technology (score: 1): Author: "K4IQJ" <k4iqj@mindspring.com>; Date: Sat, 23 Aug 2008 06:50:21 -0500; I have implemented full beam steering on my receiving four square array using DSP. At the moment the antennas are four DX engineering receiving verticals feeding an USRP. (Universal Software Radio Pe; /archives//html/Topband/2008-08/msg00074.html (8,530 bytes)
4. Re: Topband: DSP-based technology (score: 1): Author: "K4IQJ" <k4iqj@mindspring.com>; Date: Mon, 1 Sep 2008 07:24:37 -0500; Doug, Sorry for the delay in responding. We left on vacation right after I posted my first message. At this point, all the phasing/gain adjustments are manual. Automatic mode is way off, and for weak; /archives//html/Topband/2008-09/msg00000.html (7,712 bytes)

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