[hpsdr] CASMIR Microdesign v3.6

[Alex]

Just posted a new CASMIR microdesign (v3.6) as a PDF to http://www.hamsdr.com/personaldirectory.aspx?id=354

Changes include:

(a) Removal of initial PI5V331, AD8132s, and driver amps per Phil's VHDL support of differential I/Q PWM
(b) Removed issue of no external LO for driving tower mounted amplifiers - port added
(c) Removed issue of no external amplifier sequencing - connector added
(d) Revised LO distribution design to reflect design flux

Alex, N3NP