Remote Control - Commands R&S NRP-Z11/21/31/41/61/211/221
1137.7470.12 6.4 E-7
R
epeat zeroing
• during warm-up after switching on or connecting the instrument
• after a substantial variation of the ambient temperature
• after fastening the sensor to an RF connector at high temperature
• after several hours of operation
• when very low-power signals are to be measured, e.g. less than 10
lower measurement limit.
For zeroing switch off the test signal and do not remove the sensor from the signal source.
Apart from keeping the thermal balance, this has the advantage that the noise
superimposed on the test signal (e.g. from a broadband amplifier) can be detected on
zeroing and does not impair the measurement result.
The query always yields 1 (= OFF).
Default setting
After a power-on reset, the zero offsets determined during the last calibration are used until the first
zeroing. Therefore, very slight zero offsets are to be expected with a warmed up sensor. Initialization by
means of *RST or SYSTem:INITialize has no influence on the current zero offsets.
To Next Page
Loading...
