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Total 13 documents matching your query.

1. [TowerTalk] Bandpass Filters (score: 1): Author: Alfredo Vélez WP3C <wp3c@usa.com>; Date: Wed, 9 Jan 2008 19:10:37 -0400; Hi I would like to know your opinion about Bandpass filters, soon I will be updating all my station and I will make it to operate a SO2R and M/S, so i see that there are W3NQN Dunestar 600 and the IC; /archives//html/Towertalk/2008-01/msg00126.html (7,311 bytes)
2. Re: [TowerTalk] Bandpass Filters (score: 1): Author: Mike Fatchett W0MU <w0mu@w0mu.com>; Date: Wed, 09 Jan 2008 16:38:56 -0700; The NQN filters are much better. They do not have nearly the loss of the Ice filters and are much beefier! You get what you pay for. I have a couple of ICE 419's and they work ok. I still have issues; /archives//html/Towertalk/2008-01/msg00127.html (7,975 bytes)
3. Re: [TowerTalk] Bandpass Filters (score: 1): Author: " Peter Forbes" <prforbes@bigpond.net.au>; Date: Thu, 10 Jan 2008 12:20:22 +1100; Alfredo, How much power do you intend running through the bandpass filters? If you are using the newer rigs which can run 200 watts out, then you might have trouble with the Dunestar and ICE filters; /archives//html/Towertalk/2008-01/msg00129.html (8,662 bytes)
4. Re: [TowerTalk] Bandpass Filters (score: 1): Author: "Al Williams" <alwilliams@olywa.net>; Date: Wed, 9 Jan 2008 18:02:04 -0800; If one has a bandpass filter such as Dunestar or ICE and switch it in for rx and out for tx, is that good enough or is there really a filtering advantage of transmitting through the filter when nearb; /archives//html/Towertalk/2008-01/msg00132.html (9,396 bytes)
5. Re: [TowerTalk] Bandpass Filters (score: 1): Author: "Dave Hachadorian" <K6LL@ARRL.net>; Date: Thu, 10 Jan 2008 03:09:20 -0000; If one has a bandpass filter such as Dunestar or ICE and switch it in for rx and out for tx, is that good enough or is there really a filtering advantage of transmitting through the filter when nearb; /archives//html/Towertalk/2008-01/msg00133.html (8,466 bytes)
6. Re: [TowerTalk] Bandpass Filters (score: 1): Author: " Peter Forbes" <prforbes@bigpond.net.au>; Date: Thu, 10 Jan 2008 14:47:33 +1100; Absolutely Al, The filters work in two ways: On receive you have minimal receive insertion loss at the frequency it is designed for and deep notches (up to 80dB) on the adjacent bands. On transmit yo; /archives//html/Towertalk/2008-01/msg00134.html (11,961 bytes)
7. Re: [TowerTalk] Bandpass Filters (score: 1): Author: "Ethan Miller K8GU" <ethan@k8gu.com>; Date: Wed, 9 Jan 2008 19:43:06 -0600; Alfredo, Yes, the W3NQN filters are the best. But, you will need to design sufficient radio-to-radio isolation into your switching system in order take full advantage of them. The I.C.E. and Dunestar; /archives//html/Towertalk/2008-01/msg00139.html (8,263 bytes)
8. Re: [TowerTalk] Bandpass Filters (score: 1): Author: "Ethan Miller K8GU" <ethan@k8gu.com>; Date: Wed, 9 Jan 2008 21:58:51 -0600; Al, The FCC harmonic limits are usually not enough by themselves to ensure that you don't get interference (or blocking). So, it helps to have something to knock down the harmonics. Transmitting thro; /archives//html/Towertalk/2008-01/msg00140.html (8,311 bytes)
9. Re: [TowerTalk] Bandpass Filters (score: 1): Author: <donovanf@starpower.net>; Date: Thu, 10 Jan 2008 07:30:38 -0500 (EST); The W3NQN filters are excellent. I use them between my transceivers and all of my amplifiers and they do an excellent job of eliminating out of band spurious signals and noise from the trnasmitted si; /archives//html/Towertalk/2008-01/msg00141.html (11,359 bytes)
10. Re: [TowerTalk] Bandpass Filters (score: 1): Author: "WA3GIN" <wa3gin@comcast.net>; Date: Thu, 10 Jan 2008 07:50:10 -0500; OK, So, has anyone measured how much attentuation is provided by the use of a radios internal tuner or even an outboard "ultimate transmatch" designed tuner? I used to live about a mile from a 20m DX; /archives//html/Towertalk/2008-01/msg00142.html (9,941 bytes)
11. Re: [TowerTalk] Bandpass Filters (score: 1): Author: "Dubovsky, George" <George.Dubovsky@andrew.com>; Date: Thu, 10 Jan 2008 08:22:43 -0500; 73, geo - n4ua -- This message is for the designated recipient only and may contain privileged, proprietary, or otherwise private information. If you have received it in error, please notify the send; /archives//html/Towertalk/2008-01/msg00143.html (10,097 bytes)
12. Re: [TowerTalk] Bandpass Filters (score: 1): Author: "Ethan Miller K8GU" <ethan@k8gu.com>; Date: Thu, 10 Jan 2008 08:38:22 -0600; Frank's point is well-taken. I have noticed this with my 40 and 20 meter installation... Even though I have the very good 40-meter filter inline, I still get some hash on the 20 meter radio, which al; /archives//html/Towertalk/2008-01/msg00148.html (8,732 bytes)
13. Re: [TowerTalk] Bandpass Filters (score: 1): Author: "Mark" <n2qt@verizon.net>; Date: Thu, 10 Jan 2008 13:00:11 -0500; I have found that with my 50 ft tower bracketed to the house, with both the 20 and 40m antennas on that tower, I get enough 40M signal radiated into the house wiring that the 20M harmonic is both emp; /archives//html/Towertalk/2008-01/msg00150.html (9,407 bytes)

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