[KYHAM] 2 Meter Antenna Question

Thu, 27 Jun 2002 19:26:43 -0500

Thanks, David, for the return.  

I would like to amend my statement about the length from the 
feed point, however.  I goofed when I stated one wavelength
of perpendicular, which wouldn't hurt, but I should have correctly
stated 1/4 wavelength.  I guess I type so fast the computer missed 
the "slash 4".  Hi.

Have a great evening all.

73
Gene
***
On Thu, 27 Jun 2002 14:44:32 -0700 "David A. Smith"
<[email protected]> writes:
> Gene writes in part:
> 
> To expand on the point, that of not mounting the antenna near a 
> grounded
> object - doesn't that hold true with any of our antennae?  A second 
> point
> is this:  Some users of the twin lead in "J-Pole" feel as I do about 
> the
> connection at the feed point.  I hold the belief, based on some 
> very
> elementary testing, that the coax feeding the antenna should be
> perpendicular to the antenna for some distance, at least one 
> wavelength.
> Seems as though better thing happen when it is at 90 degrees.  I 
> realize
> that in many instances, this is difficult, but if hung on a wall or 
> from
> the ceiling, why not?
> 
> Just had to butt in.
> 
> 73 to all,
> 
> Gene
> 
> KE4NNA
> It is noted that the "J-Pole is a durative of the lighter than air 
> Zeppelin
> communications antenna or "Zepp" which had a large aluminum frame of 
> the
> airship for a ground plane. In the dipole called a double extended 
> Zepp, it
> is balanced and has the other half to reference or to work against.  
> This it
> is reasonable to not be surprised to find that signal strength 
> improves if
> the coaxial feed is perpendicular or at a right angle to the 
> antenna
> deployment direction.
> 73 Dave
> David Smith W8YZ
> Technical Coordinator
> Michigan Section ARRL
> Monroe, Michigan 48162-2943
> Phone 734-242-5589
> Fax 734-242-8413
> Cell 734-479-4686
> E-Mail: [email protected]
> OR: [email protected]
> Please visit our websites at:
> http://www.arrl.org/sections/index.html?sect=MI
> Or:
> http://www.msp.state.mi.us/division/emd/staff.html
> 
> 
> 
> 
> _______________________________________________
> Support Amateur Radio in Kentucky!
> http://www.qsl.net/kd4pwl/index.html
> http://mailman.qth.net/mailman/listinfo/kyham
> 
> _______________________________________________
> Support Amateur Radio in Kentucky!
> http://www.qsl.net/kd4pwl/index.html
> mailman.qth.net/mailman/listinfo/kyham
> 