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Righto. VM probes have three wires, Black = ground, Red = +5 VDC and
White = frequency out where higher frequency range = shorter probe. I
used an 8 inch probe vertically in the header tank and built a CMOS frequency
divider (by 2) that was just a bulge in the cabling between the probe and the
computer. The VM computer didn't like frequencies above
20,000.
Grayhawk
In a message dated 5/13/2013 6:51:02 A.M. Central Daylight Time,
N4ZQ@VERIZON.NET writes:
Danny,
their /4 changes the base sensor count before calibration and depending on the
length of your probes, there should be no need to install this device between
the probe and FLC.
I have 2 4' Vision Micro Systems probes in my wings and
they interface seamlessly with my EI MVP-50. Their /4 device is
required
in line when the probe is short as in my header tank...16".
Angier
Ames
N4ZQ
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