On Aug 11, 12:30*pm, "JB" wrote:
You need to read up on it. *It does have it's uses and I know hams that use
it. *Usually by Satellite guys that talk to mobiles too. *It gets used by
quite a few commercial broadcast FM stations. *The theory is that a mobile
antenna will hear either the main path or reflected path but to a lesser
extent, both so multi-path distortion is minimized. *Typically the
reflection cause a reversal of polarization. *There is no substitute for
talking to the far station in whatever polarity is agreed on.

You bet that they have to read up on it.
For those who consider themselves experts and others idiots.
There is some sort of federation for antenna builders and the
President of that group states we will have a disaster on our hands if
we do not come up with a new technology for what is required in 5
years. Apparently cell phones will be divided into three bands and the
big boys want access to all. This means that they need three separate
antennas on the cell phone to cater for all (his words). They don't
like that idea because it means three antennas in close proximation to
each other. The response to that challenge is to group together the
research facilities to find a "new" technology if ever there is one. A
lot of money at stake and it is for any of you that are knowledgable
in the field to apply for.
Those who are really "knowledgable" already know there is no "new"
technology only the one that they use and they all have researched it
to death such that all the answers have been unfolded to them. It is
also too late to ask God to be a bit more fair and provides some
different options to what we already have.
All I ask of them is to share with the rest of us exactly what
happens to CP when it collides with anything in transit to a receiver.