Differences

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--- d2:offset_phase_lock_servo [2020/03/06 01:51] – [Right Side Panel] Michael Radunsky
+++ d2:offset_phase_lock_servo [2021/12/17 00:01] – external edit 127.0.0.1
@@ Line 231: / Line 231: @@
 {{ :d2:d-sub_power_pinout.jpg?nolink&150 |}}
+While it is infrequent, the D2-005 power supply may occasionally radiate noise from the side of its chassis onto nearby electronics. This only occurs in some system configurations, and will appear as a signal at the frequency of your mains electricity (typically either 50 Hz or 60 Hz). This noise can easily be removed by moving the D2-005 at least 18 inches (45cm) away from other electronics, rotating it 90° such that the sides of the D2-005 face away, or by moving the entire power supply to a different shelf. To accommodate this, all D2-005's are shipped with a 5' DB9 cable as of January 1, 2022.
 **Computer Control (9-pin D-sub)**
@@ Line 281: / Line 284: @@
 **VCO Freq. Adjust**
-This input is summed in with the VCO TUNE potentiometer to set the voltage to the VCO, and thus the reference frequency when the OPLS is using the internal VCO. The impedance to this input in 1 kΩ and can accept voltages from -10V to +10V and should tune over entire VCO range, provided that the VCO TUNE potentiometer is set in the middle of the VCO range.
+This input is summed in with the VCO TUNE potentiometer to set the voltage applied to the VCO, and thus the reference frequency when the OPLS is using the internal VCO. The impedance of this input is 1 kΩ and it can accept voltages from -10V to +10V which will tune the reference frequency over the entire VCO range, provided that the VCO TUNE potentiometer is set in the middle of its range.
 =====Understanding Gain in the OPLS=====