I've been offered a good deal on an XM-240, but am concerned by reports in
the archives of interaction with the 15-meter performance of tribanders
mounted nearby. Unless I want to go through replacing the mast I now have,
I'm limited to about 6-foot spacing. Has anyone done this
successfully? Has anyone tried grounding the center of the reflector
(effectively the only difference, electrically, from the 40-2CD)? Nothing
in the archives that I could find other than speculations that the
reflector was insulated to somehow improve the pattern, hence grounding it
would undo that. I'll need to ground it electrically on 160m anyhow, to
protect it when I shunt feed the tower, so a simple ground strap would be
attractive.
73, Pete N4ZR
Check out the World HF Contest Station Database
Updated 9 Jan 04
www.pvrc.org/wcsd/wcsdsearch.htm
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|