Jim, Thanks for your response to my post. I accept your reasons for what you do and have recommended.
However, for all my applications, I stand by my statement. For me, many, many, many installations as I described have worked, and continue to WORK, LIKE A CHAMP. I have done loss measurements and also checked for the possible problem you propose. In all cases, nary a problem. YMMV. 73 de Milt, N5IA -----Original Message----- From: Jim Brown Sent: Monday, March 07, 2011 12:49 PM To: Milt -- N5IA ; 'TopBand' Subject: Re: Topband: Preferred Choke Baluns On 3/6/2011 9:32 PM, Milt -- N5IA wrote: > And I make all of my choke baluns for 160 Meter energy from 30 turns, 6" > in > diameter, of whatever cable it is. This is coaxial leads as well as rotor > cables, etc. Works like a champ. > I suggest that you MEASURE the effect before you say that it "works like a champ." There are HUGE differences between what you suggest as opposed to multiple turns of the coax around five #31 cores. Your choke is inductive, so it can resonate with a feedline that is capacitive by virtue of its length. The ferrite choke is resistive, has a MUCH greater choking impedance, and cannot resonate with the feedline. 73, Jim Brown K9YC ----- No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1204 / Virus Database: 1435/3488 - Release Date: 03/07/11 _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
