USA57 Revision
1.2
98
the zero position was not set correctly. Another cause of oscillations is a “scratchy”
potentiometer. Try adding a 0.1
μ
F capacitance between the wiper terminal and ground.
NOTE: To start feedback at a non-zero potentiometer position, read the current potentiometer
value (position) with
/1?aa
, say it’s 2345, then issue a
/1z2345N3n8R
command.
Example: (V6.7+) :
/1aM1z0aC50h40m40au100aE32000V1000N3n8R
Example (V6.99+, with fine position correction):
/1aM1z0aC50ac10x10h40m40au100aE32000L100N3n8R
NOTE: See Appendix E for parameter explanations.
To exit this mode, type
/1n0R
followed by
/1T