Re: R: [amsat-bb] AO-40 < clarification, helix question....

[Douglas Cole <n7bfs@xxxxxxxxx>]

i8cvs wrote:
> 
> Hello Jens,
> 
> For my 3 turn helix feed i uses 3 mm diameter silver plated copper wire.
> The RF current flow on the surface of the wire by skin effect and any bit
> of dB help !
> 
> 73 de i8CVS Domenico

Sounds neat Domenico , so you got my grey cells going and I started
thinking about Pieter's helix with the metal tape , and I was wondering
which would be better for GHz use because of skin-effect , the solid
copper wire or the flat copper tape ?

Would the extra surface area of the tape make it more efficient ? 

Haven't built any helix's yet and was thinking about buying some of the
tape to mess with .....


-- 
Douglas Cole   N7BFS
AMSAT#26182 , K2 # 544
http://www.users.qwest.net/~cdoug3
Registered Linux user # 188922
----
Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org