Groiunded and regrounded. Currently have a 12 guage from WB analog ground wire back to battery negative post. Have taken two 14 guage grounds back from MPVI interface EIO (ports 5 and 6) to same battery negative post.
This is my best voltage readings so far with the additional grounding at Free Air CAL- on my AFX:
WB analog signal = 4.96 V (confirmed by two meters)
HPT Voltage Histogram = 4.8127 V
Does this alone warrant an offset adjustment?
If so, do I offset 4.96 back to 5 V?
Or do I offset 4.8127 V back to 4.96 V?
Or do I offset 4.8127 V back to 5 V?