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Total 7 documents matching your query.

1. Re: Topband: Half slopers ??? (score: 1)
Author: Ryszard Tymkiewicz <rtym@ippt.pan.pl>
Date: Sat, 2 Apr 2016 10:55:42 +0200
Hi, I am trying to work on 160m (also on 80m) from a city lot. I have been reading about half slopers in the ARRL Wire antenna classics B (chapter 7). I have a 50 ft grounded tower available and can
/archives//html/Topband/2016-04/msg00014.html (9,311 bytes)

2. Re: Topband: Half slopers ??? (score: 1)
Author: Ryszard Tymkiewicz <rtym@ippt.pan.pl>
Date: Sat, 2 Apr 2016 13:50:26 +0200
Are we talking half slopers or quarter wave slopers here. ..... shield bonded to the tower at the top. 73 Ed N1UR _ Ed I was talking exactly about such (quarter wave ) sloper and I have had shield co
/archives//html/Topband/2016-04/msg00018.html (7,407 bytes)

3. Re: Topband: 160m Vertical Ideas? (score: 1)
Author: Ryszard Tymkiewicz <rtym@ippt.pan.pl>
Date: Sat, 28 Oct 2017 16:02:55 +0200
Ed I used to have half sloper for more than 10 years and it was working quite well  but a few years ago I tried shunt feed the same tower ( 21m with big yagi on the top) and the difference was 1-2 S
/archives//html/Topband/2017-10/msg00273.html (9,001 bytes)

4. Re: Topband: Supporting Ladder line (score: 1)
Author: Ryszard Tymkiewicz <rtym@ippt.pan.pl>
Date: Wed, 10 Jan 2018 12:50:20 +0100
Hi Frank..I understand in the case of BOG we should use both transformers T1 and T3 with 4:1 impedance ratio... ?  I wonder if it is possible to use RG174 which unfortunately has quite big attenuatio
/archives//html/Topband/2018-01/msg00050.html (8,767 bytes)

5. Re: Topband: Broadband DHDL (score: 1)
Author: Ryszard Tymkiewicz <rtym@ippt.pan.pl>
Date: Mon, 29 Jul 2019 13:04:29 +0200
"The distance between Deltas is about 95m. Resistors are 1250 ohm , tranformers 12:1 bifilar windings ,2 pieces of coax 75 ohm each one 50m connected together to transformer 2:1 and to 75 ohm coax. I
/archives//html/Topband/2019-07/msg00112.html (12,278 bytes)

6. Re: Topband: John ON4UN silent key (score: 1)
Author: Ryszard Tymkiewicz <rtym@ippt.pan.pl>
Date: Wed, 11 Nov 2020 07:57:59 +0100
So sad news... I met John many times in Friedriechshafen and I visited him in his house, he was very nice person always eager to help. His books since a first edition have been always in my bookcase.
/archives//html/Topband/2020-11/msg00068.html (8,238 bytes)

7. Re: Topband: I4EAT Fausto SK (score: 1)
Author: Ryszard Tymkiewicz <rtym@ippt.pan.pl>
Date: Wed, 31 Mar 2021 22:00:44 +0200
So bad news...Fausto was always very friendly and it was great to compete with him in DXing..Its difficult to understand it... such a great loss.                      RIP Fausto                      
/archives//html/Topband/2021-03/msg00200.html (8,613 bytes)

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