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1. Topband: Beverage Antenna Tuning (score: 1): Author: Ashraf Chaabane <ash.kf5eyy@gmail.com>; Date: Wed, 4 Jul 2018 15:13:27 +0100; Hi All I measured the SWR in my beverage antenna; the SWR fluctuates between 1.5 and 3 in a range of 1.8 to 7 MHz. (See: https://drive.google.com/drive/folders/0B9AtNpPfAOUMRDNsaXROMG1VUTg?usp=sharin; /archives//html/Topband/2018-07/msg00016.html (7,480 bytes)
2. Re: Topband: Beverage Antenna Tuning (score: 1): Author: "Joe Subich, W4TV" <lists@subich.com>; Date: Wed, 4 Jul 2018 10:18:47 -0400; Nothing? What you measure should have no practical impact on performance. 73, ... Joe, W4TV I measured the SWR in my beverage antenna; the SWR fluctuates between 1.5 and 3 in a range of 1.8 to 7 MHz; /archives//html/Topband/2018-07/msg00017.html (8,046 bytes)
3. Re: Topband: Beverage Antenna Tuning (score: 1): Author: <pa5mw@home.nl>; Date: Wed, 4 Jul 2018 16:23:23 +0200; Based on my field installed beverages experience, I would say this is exactly what I always read on my ant analyzer. Ground and local air/bush moisture level changes, like after rain or such, will af; /archives//html/Topband/2018-07/msg00018.html (8,287 bytes)
4. Re: Topband: Beverage Antenna Tuning (score: 1): Author: Ashraf Chaabane <ash.kf5eyy@gmail.com>; Date: Wed, 4 Jul 2018 15:39:57 +0100; Mark, I'm planning to have the termination value adjustment excercice for F/B maximisation using a BC station signal. However, does SWR measurement have to do also with the termination value? Or that; /archives//html/Topband/2018-07/msg00019.html (8,957 bytes)
5. Re: Topband: Beverage Antenna Tuning (score: 1): Author: <pa5mw@home.nl>; Date: Wed, 4 Jul 2018 17:09:59 +0200; Hi Ash, Some info: - SWR curve median will always slowly rise. No action; this has to do with parameters which slowly affect at higher freq. That is rather irrelevant on the lowbands 160-80-40 - Term; /archives//html/Topband/2018-07/msg00020.html (11,177 bytes)
6. Re: Topband: Beverage Antenna Tuning (score: 1): Author: "Lloyd - N9LB" <lloydberg@charter.net>; Date: Wed, 4 Jul 2018 11:56:22 -0500; Hello Ash! For a broadband RX antenna, that match looks good. Exactly what I see with my AIM analyzer when looking at my BOGs. Don't mess with it. 73 Lloyd - N9LB Hi All I measured the SWR in my beve; /archives//html/Topband/2018-07/msg00021.html (7,955 bytes)
7. Re: Topband: Beverage Antenna Tuning (score: 1): Author: donovanf@starpower.net; Date: Wed, 4 Jul 2018 14:00:33 -0400 (EDT); Hello Ash, Your results are normal for a typical Beverage. Receiving performance is not significantly degraded by imperfect matching of the coaxial feedline to the Beverage feed point or by non-optim; /archives//html/Topband/2018-07/msg00024.html (9,163 bytes)
8. Re: Topband: Beverage Antenna Tuning (score: 1): Author: <pa5mw@home.nl>; Date: Wed, 4 Jul 2018 21:56:01 +0200; Another question might be; how close by is this BC station or any other AM BCB stations? Please consider a HP BC stopfilter 73 Mark, PA5MW Mark, I'm planning to have the termination value adjustment; /archives//html/Topband/2018-07/msg00025.html (10,162 bytes)
9. Re: Topband: Beverage Antenna Tuning (score: 1): Author: "Peter Voelpel" <dj7ww@t-online.de>; Date: Wed, 4 Jul 2018 23:03:57 +0200; I guess Ashraf wants the BC signal just to optimize for f/b, so no local signal or interference. SWR is irrelevant with a beverage, everything below 3 will be OK and it does its job with higher SWR a; /archives//html/Topband/2018-07/msg00026.html (11,140 bytes)
10. Re: Topband: Beverage Antenna Tuning (score: 1): Author: "Ashraf Chaabane" <ash.kf5eyy@gmail.com>; Date: Fri, 06 Jul 2018 14:33:28 +0000; Hi Mark, Peter, The BC station to be used to minimize the back lobe would be in Egypt or Saoudi Arabia right on the back of my beverage antenna. That should offer signals coming well above 10deg (I p; /archives//html/Topband/2018-07/msg00027.html (11,843 bytes)
11. Re: Topband: Beverage Antenna Tuning (score: 1): Author: Nick Hall-Patch <nhp@ieee.org>; Date: Fri, 06 Jul 2018 16:20:11 +0000; Hi Ash, I see that you are evaluating your Beverage antenna by using SWR. Have you actually adjusted the termination resistance to null medium-wave broadcasters located off the back end of the antenn; /archives//html/Topband/2018-07/msg00028.html (14,065 bytes)
12. Re: Topband: Beverage Antenna Tuning (score: 1): Author: k8gg@voyager.net; Date: Fri, 6 Jul 2018 13:07:18 -0400 (EDT); Hi Ash, Hello All, As a long time Beverage user, I can definitely say that the performance can be enhanced by having good ground at the termination resistor end of a beverage. Operating from Aruba in; /archives//html/Topband/2018-07/msg00029.html (14,579 bytes)
13. Re: Topband: Beverage Antenna Tuning (score: 1): Author: "Richard (Rick) Karlquist" <richard@karlquist.com>; Date: Fri, 6 Jul 2018 10:35:22 -0700; Groundwave BC signals arrive at 0 degrees; you want to adjust FB at incoming skywave (10< >50 degrees) signals instead What reference you should use depends on your QTH and the first wave of incomin; /archives//html/Topband/2018-07/msg00030.html (8,964 bytes)
14. Re: Topband: Beverage Antenna Tuning (score: 1): Author: Mark <pa5mw@home.nl>; Date: Sat, 7 Jul 2018 09:54:00 +0200; Good point Rick. But that zoomes-out the topic. What priorities does Ash' beverage need to cover, like: lowering local noise (groundwave) lowering incoming skywave noise; QRN and/or QRM the need to '; /archives//html/Topband/2018-07/msg00031.html (10,846 bytes)
15. Re: Topband: Beverage Antenna Tuning (score: 1): Author: <n4is@n4is.com>; Date: Sat, 7 Jul 2018 12:47:59 -0400; Guys Some concepts really belong to the last century, a beverage antenna is very inefficient for moderns days. Ground wave noise is very high everywhere and it is vertical polarized, any vertical pol; /archives//html/Topband/2018-07/msg00034.html (10,830 bytes)
16. Re: Topband: Beverage Antenna Tuning (score: 1): Author: "Ed Sawyer" <sawyered@earthlink.net>; Date: Sun, 8 Jul 2018 12:16:04 -0400; I find that my 600 to 1000 ft terminated beverages are quite capable. Clearly, if someone doesn't the room, then other options need to be explored. But the front to back ratio and SNR of my 1000 ft b; /archives//html/Topband/2018-07/msg00040.html (8,278 bytes)

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