[Elecraft] wire antennas

[N2EY at aol.com]

In a message dated 2/19/07 4:45:23 PM Eastern Standard Time, 
wsm at amaonline.com writes:


>  have been told
> lately that the unused antennas on the setup would pick up additional
> noise. 

If so, it will also pick up additional signal.

> Has anyone ever done any testing with multiple antennas on one
> feedline to see if they really do pick up extra noise?

I haven't done any scientific testing, but in actual operation (FD), I have 
not
found any difference from a regular dipole.

The principle of multiple parallel dipoles is that the nonresonant dipoles 
present
a high impedance, so almost all of the power goes to the resonant dipole. 
That
principle works the other way, too, when receiving. 


> I'm thinking about putting up new inverted V antennas on 160, 80, and
> 40 meters and feeding them with one coax. Sure beats antenna
> switching and it always seem to me that the signal would go to the 
> resonate antenna. I always used a coaxial balun in the feedline.
> 

Works for me!

How high of a center support do you have? 

73 de Jim, N2EY