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References: [ +from:KeepWalking188@ac0c.com: 206 ]

Total 206 documents matching your query.

201. Re: [TowerTalk] Choke on feed point of dipole (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Mon, 12 Jan 2026 19:23:01 -0600
Tom, I'm emphasizing what Jim mentioned earlier.  If the antenna resonant point moved by adding the choke, then that means the feedline was participating to some extent as "part of the antenna." My b
/archives//html/Towertalk/2026-01/msg00028.html (10,516 bytes)

202. Re: [TowerTalk] Choke on feed point of dipole (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Tue, 13 Jan 2026 12:29:39 -0600
No problem on the ferrites cracking here in KS. 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com On 1/13/2026 12:13 AM, Jim Brown wrote: On 1/12/2026 9:16 PM, Tom Hellem wrote: Im going to try ba
/archives//html/Towertalk/2026-01/msg00036.html (12,584 bytes)

203. Re: [TowerTalk] Choke on feed point of dipole (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Tue, 13 Jan 2026 12:35:21 -0600
I would not hesitate to put up a vertical dipole. In fact my 30m beam is so directional I'm thinking of putting up one here just to cut down on rotor wear & tear.  Assuming you have the height, It's
/archives//html/Towertalk/2026-01/msg00037.html (11,127 bytes)

204. Re: [TowerTalk] Choke on feed point of dipole (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Thu, 15 Jan 2026 11:08:48 -0600
I don't see the functional difference to have the feedline inside or out. Either way will work fine.  Having the coax inside is more "clean" for sure.  But  I had assumed the gentleman had an existin
/archives//html/Towertalk/2026-01/msg00059.html (14,549 bytes)

205. Re: [TowerTalk] Test Fixture for Common Mode Chokes (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Fri, 23 Jan 2026 17:41:55 -0600
It looks like the Y21 method is a bit better, especially with increasing frequency, but the S21 is a decent proxy as is mentioned on the web page article already.  And a real indictment of S11...  Wo
/archives//html/Towertalk/2026-01/msg00111.html (9,605 bytes)

206. Re: [TowerTalk] Test Fixture for Common Mode Chokes (score: 1)
Author: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Fri, 23 Jan 2026 18:57:03 -0600
Brian, would you consider the N2PK VNA in the "fancy" category rearding your calibration comment? Tks 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com "It looks like the Y21 method is a bit bette
/archives//html/Towertalk/2026-01/msg00113.html (10,610 bytes)

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