Performance veri
fi
cation
Check the analog bandwidth
Use the following test to check the analog bandwidth of the probe.
1.
Connect the test equipment as shown in the Analyzer setup diagram. (See Figure 7.)
2.
Set the network analyzer to measure insertion loss (S21) in dB. Set the network analyzer to the following settings:
Power Level: –10 dBm
IF Bandwidth: 1 kHz
Sweep Type: Linear
Start Frequency: 300 kHz
Stop Frequency: 6 GHz
Number of points: 201
Set scale factor: 1 dB
For more information on setting up a network analyzer, use the following links:
tek.com/how/making-basic-2-port-measurements-using-ttr500-vna
tek.com/how/how-calibrate-ttr500-vector-network-analyzer
3.
Set up the network analyzer with a fresh 2-port SOLT calibration to the reference planes of the SMA side of network
analyzer cable (port 2) and the SMA side of the SMA-to-N adapter (port 1).
4.
Place a marker on the S21 trace at the start frequency (300 kHz).
5.
Place a marker on the S21 trace at the probe bandwidth (1 GHz for TPR1000 or 4 GHz for TPR4000).
6.
Verify that the amplitude is greater than -3.97 dB (subtracting the 0.97 dB of probe attenuation range from the 3.97 dB
target value yields the 3 dB limit).
7.
Record the result in the test record. (See page 34.)
TPR1000 and TPR4000 User Manual
33
