National Instruments PXIe-5622, Процедура калибровки

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© National Instruments Corporation 7 NI 5622 Calibration Procedure
Test Conditions
Follow these guidelines to optimize the connections and the environment
during calibration:
• Keep cables as short as possible. Long cables act as antennae, picking
up noise that can affect measurements.
• Verify that all connections, including front panel connections, are
secure.
SMA Cable Mini-Circuits
CBL-1.5FT-SMS
M+ Bandpass
Amplitude
Flatness
,
Absolute
Amplitude
Accuracy
,
SSB Phase
Noise
, Timing
Accuracy ,
Adjustment
50
Ω
, Maximum VSWR: 1.20
Frequency Range: 900 kHz to 820 MHz
Power Measurement Range:
–4 dBm to 3 dBm
Relative Shielding: –100 dB
Attenuator Mini-Circuits
VAT-3+ SSB Phase
Noise Frequency Range: 900 kHz to 820 MHz
Minimum Power (W): 10 mW
Maximum VSWR: 1.20
Nominal Attenuation: 3 dB
SMA
Termination Mini-Circuits
ANNE-50+ Average
Noise Density 50
Ω
Power
Splitter Weinschel
WA1507R Absolute
Amplitude
Accuracy
,
Bandpass
Amplitude
Flatness
,
Adjustment
Frequency Range: 900 kHz to 820 MHz
Input Power Range: –4 dBm to 3 dBm
Maximum VSWR (Output ports): 1.15
Maximum Amplitude Tracking: 0.15 dBm
Table 3. Required Equipment Specifications for NI 5622 External Calibration (Continued)
Required
Equipment
Recommended
Equipment
Calibration
Procedure Specification