Re: Topband: Fw: Choke Construction Info Needed

2012-07-27 Thread DAVID CUTHBERT
I agree with Tom and Bob that the big, heavy choke is not needed. Even it offers too much inductance to be an effective lightning path. A spark gap is the thing to use across the choke or shorted 90 degree feedline. It should have a weather cover and be set close but not too close. See ROSS

Re: Topband: Fw: Choke Construction Info Needed

2012-07-27 Thread ZR
If you use an automotive spark plug make sure its not the resistor type. Carl KM1H - Original Message - From: DAVID CUTHBERT telegraph...@gmail.com To: Bob Kupps n...@yahoo.com Cc: topband topband@contesting.com Sent: Friday, July 27, 2012 8:24 AM Subject: Re: Topband: Fw: Choke

Topband: Fw: Choke Construction Info Needed

2012-07-26 Thread Bob Kupps
Hi Phil I'm no expert but plan to use a quarter wave shorted stub of RG6 at the feed point of my verticals for static drain and harmonic reduction, along with a spark gap in the event of a close strike. 73 Bob - Forwarded Message - From: Phil Clements philcleme...@centurylink.net To: