View Single Post
  #14   Report Post  
Old October 9th 08, 08:27 PM posted to rec.radio.amateur.antenna
Michael Coslo Michael Coslo is offline
external usenet poster
 
First recorded activity by RadioBanter: Jun 2006
Posts: 828
Default Dummy Load Antenna

Bob Schreibmaier wrote:
In article , says...

Has anyone ever tried putting a dipole antenna up with the center insulator
being a high power 50 ohm dummy load,then connecting the dipole elements
across the dummy load.This would always keep a suitable match at 50 ohms
and satisfy the transceiver.Would most of the power go to the dummy load and
not the elements and wouldn't radiate.In thinking about this it all
logically makes sense the load would really never change or would it have
some reactance with the dipole elements.
Thanx All
Howard
VE4ISP


That is very similar to what the Maxcom Antenna Matcher
did. It was reviewed (and panned) in November 1984 QST.
As you suspected, almost all the power would go into the
dummy load and very little would be radiated.

Honestly, it's not a very good idea. :-)



This one is meant to be a poor antenna, for use at really close distances.

http://www.wa0dx.org/wa0itp/dlspecial.html


Here is the gold standard, the MaxCom. If you gan get the link, QST had
a review. It was a toroid, and 3 resistors. Apparently a very high
quality dummy load (these things cost between 600 to 900 dollars!

http://www.eham.net/articles/14905


Had great SWR tho'!

- 73 de Mike N3LI -