4 Calibration Procedures
86 Keysight 33210A Service Guide
Frequency (Internal Timebase) Adjustment
The function generator stores a calibration constant that sets the VCXO to output
exactly 10 MHz.
1 Set the frequency counter resolution to better than 0.1 ppm and the input
termination to 50 Ω (if your frequency counter does not have a 50 Ω input
termination, you must provide an external termination). Make the connections
shown below.
2 Use a frequency counter to measure the output frequency for each setup in the
following table.
3 Using the numerical keypad or knob, adjust the displayed frequency at each
setup to match the measured frequency. Select ENTER VALUE.
4 After performing setup 5:
Setup
Nominal Signal
Frequency Amplitude
2 <10 MHz 1 Vpp Output frequency is slightly less than 10MHz
3 >10 MHz 1 Vpp Output frequency is slightly more than 10MHz
4 ~10 MHz 1 Vpp Output frequency should be near 10MHz
5
[a]
[a] Constants are stored after completing this setup.
10 MHz 1 Vpp Output frequency should be 10MHz ±1ppm
To Next Page
Loading...
