Topband: Broadband Inverted L

John K9UWA john at johnjeanantiqueradio.com
Tue Nov 25 10:14:10 EST 2014


Joe 
as Charlie said your input impedance is probably in the vicinity of 20-35 
ohms. 
So if you want a better match put an 2 to 1 Un-Un at the feedpoint giving you 
a 25 to 50 ohm transformer.
John k9uwa/w4

>The driving point impedance of the inverted L at
> resonance will be of the order of 20-35 ohms or so, with a good ground/radial
> system,  which would put the VSWR at resonance up in the range of 1.5 -2.0 or
> so.
> 73,
> Charlie, K4OTV
> 
> -----Original Message-----


John Goller, K9UWA & Jean Goller, N9PXF 
Antique Radio Restorations
k9uwa at arrl.net
Visit our Web Site at:
http://www.JohnJeanAntiqueRadio.com
4836 Ranch Road
Leo, IN 46765
USA
1-260-637-6426



More information about the Topband mailing list