Topband: Center support on K9AY Loop

[tombaugh]

I've been told that there has been some talk about conductive (metal) center
supports for receiving antennas like the K9AY Directional loop antenna on
this reflector. I have browsed the archives unsuccessfully. Can someone
recall the concensus. Does a metal pole center support degrade the
performance of such loop antennas? Or just point me to the date of archives
and I'll look up the discussion.

Tom Baugh
AE9B