I've got the new Mk3 pseudo doppler radio direction finder with 8-antenna array up and running now for a few days.
Works like a charm already, but I will extensively test and tweak the device before I publish the schematic diagram on my website.
The Mk3 has a 32 LED pelorus plus a +5,6 degrees LED, so display resolution is 5,6 degrees.
Attached to the computer the system accuracy will be around 2 degrees.
It has a soft switched 8-element dipole array, and one coax cable only.
(supply voltage and sync signal all running via the single coax)
I've got preliminary data posted on my website: http://members.chello.nl/~w.hofman/pa8w/dopplerRDF.htm