- 21. Re: Topband: Preamplifiers (score: 1)
- Author: "Andrew Ikin" <andrew.ikin@btopenworld.com>
- Date: Tue, 03 Feb 2015 08:55:25 -0500
- Andy, The Clifton Labs Norton and the RPA-1 are both Push-pull designs and thus have high >+80dBm second order intercepts. This is essential to avoid BCB mixing products affecting TB. Single ended am
- /archives//html/Topband/2015-02/msg00028.html (8,081 bytes)
- 22. Re: Topband: Waller Flag Question (score: 1)
- Author: "Andrew Ikin" <andrew.ikin@btopenworld.com>
- Date: Sun, 6 Sep 2015 19:53:14 +0100
- Art Delibert wrote on Set. 6 snip <The on-line materials about Waller Flags says that a modest size WF would need about 40 dB of gain to boost the signal to a usable level. One of the postings says t
- /archives//html/Topband/2015-09/msg00012.html (8,539 bytes)
- 23. Re: Topband: Waller Flag Question (score: 1)
- Author: "Andrew Ikin" <andrew.ikin@btopenworld.com>
- Date: Sun, 6 Sep 2015 22:52:51 +0100
- Bruce wrote on Sept 6. Snip < Check it out http://www.qsl.net/k4fk/presentations/WF-receiver-antennas-SFDXAs.pdf > Bruce, ref to the link above there is a gap in the "History of the Flag Antenna" The
- /archives//html/Topband/2015-09/msg00018.html (8,158 bytes)
- 24. Re: Topband: HMC580 instead of W7IUV preamp (score: 1)
- Author: "Andrew Ikin" <andrew.ikin@btopenworld.com>
- Date: Wed, 9 Sep 2015 12:04:43 +0100
- Rick N6RK Wrote Sept 9. Snip<I've characterized this device and can tell you that the 1/f corner is well below 2 MHz, because it is based on HBT technology. The devices that are good at VHF and noisy
- /archives//html/Topband/2015-09/msg00054.html (8,566 bytes)
- 25. Re: Topband: Low noise preamp suggestions? (score: 1)
- Author: "Andrew Ikin" <andrew.ikin@btopenworld.com>
- Date: Tue, 03 Nov 2015 06:43:49 -0500
- Robert wrote on Nov. 3. <Ive have built another TX3A.com DHDL antenna and am in search of a wide band low-noise preamp. My current custom built preamp has a 23db gain figure , as well as built in RX
- /archives//html/Topband/2015-11/msg00017.html (7,392 bytes)
- 26. Re: Topband: Low noise preamp suggestions? (score: 1)
- Author: "Andrew Ikin" <andrew.ikin@btopenworld.com>
- Date: Tue, 03 Nov 2015 07:31:31 -0500
- Bill wrote on Nov. 3. <Let me relieve my ignorance here. What is the difference between a signal limiter and AGC? Or what is the difference between a signal limiter and a diode clamp?> AGC is an auto
- /archives//html/Topband/2015-11/msg00019.html (8,251 bytes)
- 27. Re: Topband: The band sans noise (score: 1)
- Author: "Andrew Ikin" <andrew.ikin@btopenworld.com>
- Date: Fri, 22 Apr 2016 23:27:59 +0100
- Mike Waters wrote on April 22. snip< 1. What does the Pixel Loop do better than these and other loops? 2. What does the Pixel Loop's preamp do to improve the S/N ratio??? 3. And what IS its RDF?> The
- /archives//html/Topband/2016-04/msg00141.html (8,970 bytes)
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