The 305C Phasemeter Mainframe features a frequency range of 2Hz to 11MHz
(plug-in dependent, not included), digital readouts and outputs, 1 Mohm input
impedance, and high overvoltage capabilities. " Highest Accuracy "
"No-hands" Operation " Wide Frequency Range " Insensitivity
to Input Level " Non-Ambiguous Angle Readings " Repeatability,
Stability, Autocalibration " Programmable Operation " Rapid Phase
Nulling " Digital Readout " Noise Immunity " Ability to Reduce
Harmonics
OPTIONS
" Option 101 = Rear Connectors for Signal and Reference Inputs, BNC "
Option 102 = Full Mainframe Programmability; includes self check, angle range
and time constant selection, DTL and TTL compatible. " Option 103 = High
Speed Analog Output Response. Time to respond to within 99% of step change: 1
ms for frequency >5kHz, 10 ms > 500Hz, 100 ms > 50Hz, 1 second >
5Hz. (Temp. stability 0.01/C) " Option 107 = Automatic Calibration
checks and automatically readjusts digital readout and BCD output circuits and
at 0 and 360 to reduce readout errors to 0.01.
