Re: Topband: 160M Balun

2018-03-30 Thread Peter Voelpel
never saw any common mode current when the common mode chokes XL was at least 100 times the coax Z. 73 Peter -Original Message- From: donov...@starpower.net [mailto:donov...@starpower.net] Sent: Freitag, 30. März 2018 19:30 To: topband@contesting.com Subject: Re: Topband: 160M Balun Hi

Re: Topband: 160M Balun

2018-03-30 Thread donovanf
e.de> To: "Jim Thomson" <jim.t...@telus.net>, topband@contesting.com Sent: Friday, March 30, 2018 4:47:44 PM Subject: Re: Topband: 160M Balun Why do you want it resonant? 73 Peter -Original Message- From: Topband [mailto:topband-boun...@contesting.com] On Behalf

Re: Topband: 160M Balun

2018-03-30 Thread Guy Olinger K2AV
Date: Fri, 30 Mar 2018 07:22:18 -0400 > From: "N2TK, Tony" <tony@verizon.net> > To: <topband@contesting.com> > Subject: Topband: 160M Balun > > balun. > #31 cores with 7 turns of coax would be a better balun. >cores > > <N2TK, Tony

Re: Topband: 160M Balun

2018-03-30 Thread Jim Thomson
Message- From: Peter Voelpel Sent: Friday, March 30, 2018 9:47 AM To: 'Jim Thomson' ; topband@contesting.com Subject: RE: Topband: 160M Balun Why do you want it resonant? 73 Peter -Original Message- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Jim Thomson

Re: Topband: 160M Balun

2018-03-30 Thread Peter Voelpel
Why do you want it resonant? 73 Peter -Original Message- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Jim Thomson The 160m CM choke needs to resonate lower in freq. It requires more cores to shift the res freq down. _ Topband Reflector

Re: Topband: 160M Balun

2018-03-30 Thread donovanf
esting.com Sent: Friday, March 30, 2018 11:22:18 AM Subject: Topband: 160M Balun I shunt feed my tower for Topband. Presently using a Comtek 100 bead balun. After reading K9YC's article on baluns it would seem that a stack of five #31 cores with 7 turns of coax would be a better balun.

Topband: 160M Balun

2018-03-30 Thread Jim Thomson
Date: Fri, 30 Mar 2018 07:22:18 -0400 From: "N2TK, Tony" <tony@verizon.net> To: <topband@contesting.com> Subject: Topband: 160M Balun http://www.contesting.com/_topband

Re: Topband: 160M Balun

2018-03-30 Thread Grant Saviers
I measured the Comtek bead balun on 160m and found there is low choking resistance. I use the K9YC design with good results, whether it will make any difference in your antenna system is something you will need to try. With more than 5x the choking resistance with the K9YC 7T on 5 #31core

Topband: 160M Balun

2018-03-30 Thread N2TK, Tony
I shunt feed my tower for Topband. Presently using a Comtek 100 bead balun. After reading K9YC's article on baluns it would seem that a stack of five #31 cores with 7 turns of coax would be a better balun. Would I notice an improvement in any way by switching baluns? If the answer is I would