Screwdriver Antenna, Not Really Off Topic

[Wilson Lamb]

I think you should get one of the verticals meant to be permanently 
installed and put in some radials and tune it properly.  The screwdriver is 
the best you can do on a car, but unless you do a ground system it's pretty 
marginal for a fulltime antenna...

In your situation, I'd look at a vertical wire pulled up in a tree as far as 
possible, also with at least a few radials going away from the house.  If it 
comes down just outside the shack, you cando a good job of tuning the 
feedpoint without going outside.  The impedance will vary widely...very low 
when it's a quarter wave and very high when it's a half wave.  Should be fun 
to learn to make it work!
Wilson
----- Original Message ----- 
From: "Donley" <donley.r at INSIGHTBB.COM>
To: <HEATH at LISTSERV.TEMPE.GOV>
Sent: Thursday, October 11, 2007 12:27 PM
Subject: Screwdriver Antenna, Not Really Off Topic


This may be slightly off topic, but where can one get antenna related 
information except from other hams.

Does anyone have any experience with this type of antenna? I am looking for 
a small, tunable antenna for 80-10 meter coverage in a small package. I have 
an extremely wooded lot with no room for a dipole. I am also considering 
this type for mobile and portable operation.

Any comments about reliability, usefulness and functionality would be 
appreciated. Any information about specific manufacturers would also be 
appreciated.

Dick
KC9UB

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