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Total 7 documents matching your query.

1. [TowerTalk] SWR variations with power (score: 1): Author: "Rick Kiessig" <kiessig@gmail.com>; Date: Tue, 5 Nov 2013 10:03:08 +1300; I have a power/SWR meter in my amplifier (an Expert 2K-FA), as well as an off-board Power Master. Both meters show that the SWR level fluctuates somewhat as the power level changes - getting higher w; /archives//html/Towertalk/2013-11/msg00061.html (7,667 bytes)
2. Re: [TowerTalk] SWR variations with power (score: 1): Author: Grant Saviers <grants2@pacbell.net>; Date: Mon, 04 Nov 2013 15:13:51 -0800; Any ferrite baluns, ununs, chokes on the feedline or at the antenna? At 2K power levels you could be heating them up (or saturating something) and changing the Z. Different frequencies will behave di; /archives//html/Towertalk/2013-11/msg00062.html (9,939 bytes)
3. Re: [TowerTalk] SWR variations with power (score: 1): Author: "Richard (Rick) Karlquist" <richard@karlquist.com>; Date: Mon, 04 Nov 2013 15:23:47 -0800; Both meters show that the SWR level fluctuates somewhat as the power level changes - getting higher with more power. for example, the range might bounce around between 1.2 and 1.4 as I talk on sideba; /archives//html/Towertalk/2013-11/msg00063.html (8,147 bytes)
4. Re: [TowerTalk] SWR variations with power (score: 1): Author: "Rick Kiessig" <kiessig@gmail.com>; Date: Tue, 5 Nov 2013 12:29:52 +1300; The feedline goes through fourteen 2.4-inch #31 toroids as it leaves the amp (three turns through seven toroids, then the same thing again). Might seem like a lot, but that's what it took to get RFI; /archives//html/Towertalk/2013-11/msg00064.html (11,268 bytes)
5. Re: [TowerTalk] SWR variations with power (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Mon, 04 Nov 2013 16:00:59 -0800; On 11/4/2013 3:29 PM, Rick Kiessig wrote: The feedline goes through fourteen 2.4-inch #31 toroids as it leaves the amp (three turns through seven toroids, then the same thing again). Might seem like; /archives//html/Towertalk/2013-11/msg00065.html (10,607 bytes)
6. Re: [TowerTalk] SWR variations with power (score: 1): Author: Richard Karlquist <richard@karlquist.com>; Date: Mon, 04 Nov 2013 18:09:49 -0800; I did actually see this once when I put in a DC grounding coil on a vertical in a hurry and the VSWR would go haywire at over 100 watts. However, this was a really inadequate coil. The SWR meter on m; /archives//html/Towertalk/2013-11/msg00066.html (8,061 bytes)
7. Re: [TowerTalk] SWR variations with power (score: 1): Author: "Ian White" <gm3sek@ifwtech.co.uk>; Date: Tue, 05 Nov 2013 06:07:46 -0500; I'd agree with K9YC and N6RK that heating of the choke toroids is not the issue... but your remark about "RFI from 6m" raises a warning flag. A yagi on a tower should never be a particularly tough co; /archives//html/Towertalk/2013-11/msg00070.html (14,888 bytes)

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