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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+W3NQN\s+Band\s+Pass\s+Filters\s*$/: 7 ]

Total 7 documents matching your query.

1. [Amps] W3NQN Band Pass Filters (score: 1): Author: fgrisafi at tin.it (Fabio Grisafi (IT9GSF)); Date: Sat Aug 9 08:32:41 2003; Hello Guys ! I want to build the W3NQN Band Pass Filters (as in May 1998 QST) and I don't want to buy them built ! The problem is that here in Italy I cannot find all those needed components. If some; /archives//html/Amps/2002-09/msg00346.html (7,245 bytes)
2. [Amps] W3NQN Band Pass Filters (score: 1): Author: paul at schwabelfab.com (Paul); Date: Sun Aug 10 10:41:41 2003; Hi I have built the filters and they work fine. My data matched W3NQN's. Alignment requires a sweep generator set-up. I did not use #15 wire. I used various NP0&RF rated capacitors to obtain desired; /archives//html/Amps/2002-09/msg00350.html (6,732 bytes)
3. [Amps] W3NQN band pass filters (score: 1): Author: "Alton McConnell Avon-Cadillac" <amcconnell@avonauto.com>; Date: Mon, 9 Jun 2008 08:03:16 -0400; I am trying to align some W3NQN band pass filters that I have built for club use. I am using the design from the May and June 1998 QST article. I am using a HP 8656 Signal generator and a 30 MHz scop; /archives//html/Amps/2008-06/msg00091.html (7,538 bytes)
4. Re: [Amps] W3NQN band pass filters (score: 1): Author: Karl-Arne Markström <sm0aom@telia.com>; Date: Wed, 11 Jun 2008 17:43:30 +0200; First, I would suggest that you check that the indicated return loss is > 30 dB when the MFJ-269 is terminated with a known good 50 ohm termination. It is difficult to optimise return loss performanc; /archives//html/Amps/2008-06/msg00092.html (10,036 bytes)
5. Re: [Amps] W3NQN band pass filters (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Wed, 11 Jun 2008 11:52:33 -0400; A 1.2:1 VSWR isnt sufficient? Carl KM1H _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2008-06/msg00093.html (8,807 bytes)
6. Re: [Amps] W3NQN band pass filters (score: 1): Author: <d.cutter@ntlworld.com>; Date: Fri, 13 Jun 2008 13:03:59 +0100; Presumably this is for a contest station. What matters more is the break thro into the other station's rx and this can be strongly influenced by the antenna or input Z of the linear on the filter. It; /archives//html/Amps/2008-06/msg00109.html (10,783 bytes)
7. Re: [Amps] W3NQN band pass filters (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Fri, 13 Jun 2008 13:53:27 -0400; Even the best of filters will sometimes be insufficient in a contest enviroment. I augmented my filters with coax stubs in the feedline to pick up another 20-25 dB. Some were cut for CW and SSB segme; /archives//html/Amps/2008-06/msg00110.html (12,047 bytes)

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