[TowerTalk] Active phased arrays.

[Tom Rauch]

>      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