> Actually, there is a difference between this and a
single MFJ-1025. Each element's signal is being phased and
amplitude adjusted in the DSP as a complex signal before you
do the combining.
That's exactly what the 1025 does.
>This is a key point that all the computing is done with
both the I and Q part of the signal from each element. It
gives you more options when you are beamforming nulls.
I think what you are missing is the fact the signal can't be
separated from the noise and phased differently. The
combining of multiple phased antennas produces a pattern
that can be duplicated by any phasing system with 0-360
degree phase range and amplitude control. That pattern is
restricted by element spacing and phasing.
I really wish there was a good way to do something magical
with noise floor conventional signals at HF, or some magic
with transmitting antenna efficiency.
73 Tom
_______________________________________________
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
|