I chose 500 ohms because I could calculate the change in my head. 450 or 600 would wouk as well. A 1/4 wave length for 80 meters is 60 ft. Any 1/4 wave transmission line attached to a load that is greater than the characteristic Z of the line will transform the Z that as seen by the source to a lower value than the load. Depending on the SWR represendted on the the 1/4 wave line.
John, Wa5BXO -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of uvcm inc. Sent: Wednesday, April 12, 2006 11:47 PM To: 'Discussion of AM Radio' Subject: RE: [AMRadio] FW: Wanted transformer Gates BC 1 G I am running balanced line now, I changed the length of the feed line and the ant, minor change Thanks for the info -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Coleman ARS WA5BXO Sent: Wednesday, April 12, 2006 9:09 PM To: 'Discussion of AM Radio' Subject: RE: [AMRadio] FW: Wanted transformer Gates BC 1 G 1/4 wave length of 500 Ohm bal line will transform it to 250 ohms. John, WA5BXO -----Original Message----- From: uvcm inc. [mailto:[EMAIL PROTECTED] Sent: Wednesday, April 12, 2006 3:27 PM To: '[email protected]' Subject: Wanted transformer Gates BC 1 G How to lower the impendence on a double extended zepp ant from 1500 to less than 1000 ohms so my matchbox will work Brad KB7FQR ______________________________________________________________ AMRadio mailing list Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected] AMfone Website: http://www.amfone.net AM List Admin: Brian Sherrod/w5ami, Paul Courson/wa3vjb ______________________________________________________________ AMRadio mailing list Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected] AMfone Website: http://www.amfone.net AM List Admin: Brian Sherrod/w5ami, Paul Courson/wa3vjb
