[Antennas] Thanks all of you!

[W6jod@aol.com]

Hello Osten,

I've been following this thread with interest.  The one idea not mentioned 
that you might consider is using traps rather than relays to change bands.  
The traps would in a sense be automatic switches (or relays) in that they 
would change the antenna length as you change bands.  I personally would 
chose the multiple dipole method mentioned earlier.

I'm currently operating portable from the Ozarks in Southwest Missouri and 
put up an antenna on this past Saturday.  It is a 40 meter and 20 meter 
dipole hooked to the same feedline and about 45 or 50 feet in the air.  I 
tuned it with an antenna analyzer while a few feet off the ground.  After 
erecting it, the 40 meter dipole was right on at around 7.15 MHz but the 20 
meter dipole changed from 14.2 MHz to 14.6 MHz and the 2:1 SWR limit was 
14.35 MHz or so.  My antenna tuner nicely brought that down to 1:1 across the 
band.  The antenna is working great!  I've heard all sorts of DX and have 
made a few contacts as time permits.

Good luck on your project.

73,

Norm Hall, W6JOD


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