I'm wrapping a 2,000-mile road trip and have occasionally stopped, to stick
up my 30-foot modified Dallas Lankford vertical. And something's been
bothering me.
Lankford's heritage 'short vertical' proposes a 4:1 base match. I've played
with this ratio, from 2- to 16- : 1 and, indeed, 4:1
What is the inductance of the 200 ohm winding Mark?
My guess is that there's nothing a short vertical (which has a
capacitive impedance) likes better than a little matching inductance;
it's like a loading coil. You might find that your improved
sensitivity actually has a bit of a peak at a
-Patch
Sent: Saturday, March 01, 2014 2:07 PM
To: Mailing list for the International Radio Club of America
Subject: Re: [IRCA] SHORT VERTICALS
What is the inductance of the 200 ohm winding Mark?
My guess is that there's nothing a short vertical (which has a
capacitive impedance) likes better than
relative
signals at both ends of the band).
Otherwise...I like your 'antenna-tuner' idea :-))
Regards,
Mark Durenberger
-Original Message- From: Nick Hall-Patch
Sent: Saturday, March 01, 2014 2:07 PM
To: Mailing list for the International Radio Club of America
Subject: Re: [IRCA] SHORT