Check Original cal values:

%amps.portDump("Thrudder-2",2,2,34,3)
Hex:0,0,0
%amps.portDump("Host",32,4,11,3)
Hex:0,0,0

Start Cal:
%amps.writePortField("Thrudder-2",2,2,0,1128352817)
%amps.oneShot("Host",32,4,0,"CAL1")

Stop Cal:

%amps.writePortField("Thrudder-2",2,2,0,1128352816)
%amps.oneShot("Host",32,4,0,"CAL0")

Check cal values again:

%amps.portDump("Thrudder-2",2,2,34,3)
Hex:BAC49BA6,3E7AE148,3CA3D70A

%amps.portDump("Host",32,4,11,3)
Hex:26,FFFFFFD2,FFFFFFD3