- 1. [TowerTalk] Stub effectiveness (score: 1)
- Author: Tom Osborne <w7why@frontier.com>
- Date: Tue, 06 May 2014 16:55:00 -0700
- Hi All What determines the quality of a coax bandpass stub? I found about half a spool of RG-6 at the local Goodwill store here and it seems like it is pretty good coax. It has a triple shield - foil
- /archives//html/Towertalk/2014-05/msg00108.html (6,757 bytes)
- 2. Re: [TowerTalk] Stub effectiveness (score: 1)
- Author: Jim Brown <jim@audiosystemsgroup.com>
- Date: Tue, 06 May 2014 19:38:21 -0700
- See k9yc.com/Coax-Stubs.pdf First, a simple stub is not a bandpass filter, it is a NOTCH filter. Second, what makes a good stub is low resistance. The best material for HF stubs is an RG8 with a beef
- /archives//html/Towertalk/2014-05/msg00110.html (8,361 bytes)
- 3. Re: [TowerTalk] Stub effectiveness (score: 1)
- Author: "Richard (Rick) Karlquist" <richard@karlquist.com>
- Date: Tue, 06 May 2014 19:42:14 -0700
- If you want high performance, replace the coaxial stub with a coil and sufficiently rated capacitor. It will have much higher Q. A coaxial stub makes a low quality rugged filter. Rick N6Rk What deter
- /archives//html/Towertalk/2014-05/msg00113.html (7,778 bytes)
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