[TowerTalk] Raising the stakes: hams doing real-time measurement of angle of arrival?

[Ken Hirschberg]

Jim - As mentioned a few months ago, I know of a system that was available
several years ago, using 3 orthogonal loops that did measure angle of arrival
in near real time.  This was definitely not a ham radio product at $35K-ish a
copy, including software.  I can research this is there is some serious
interest.
73, Ken K6HPX

James W. Fisher, Jr. wrote:

> Message text written by Pete Smith
> >Wow, it strikes me that would be VERY difficult.  You'd need either a yagi
> >with a narrow vertical beamwidth on a Hazer (or similar track system) or
> >some sort of array that is phase-steerable in elevation.  Maybe some of
> the
> >old VOA systems had this capability(?).
>
> >Further complicating the situation is the fact that during high sunspot
> >periods as many as 7-8 different propagation modes may be simultaneously
> in
> >play, with signals as little as 3-4 dB different one to another.
>
> >73, Pete Smith N4ZR<
>
> Certainly sounds difficult--we may find nobody is doing it.
>
> Long as I've posed a difficult task, let me make it tougher: I'd like to
> see a system that could provide a computerized waterfall display (angle
> displayed on  vertical axis, with signal strength displayed on the
> horizontal
> axis).  That should sort out your second comment.
>
> 73,
>
> Jim, VE1JF
>
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