B&K Precision 2658A - Manual - Manual (Page 85)

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27.2 Accuracy of Reference Level
Adjust the output level of the calibration unit so that the displayed value of this unit is the 0th div from
the top, and calibrate the absolute value with the receiver for calibration (microwave power meter, etc.).
Setting of 2650A/2652A/2651/2658A
Specifications Measurement value Judgment
Reference level
+10 dBm within ±1.4 dB±1dot
0 dBm within ±1.4 dB±1dot
-10 dBm within ±1.4 dB±1dot
-15 dBm within ±0.8 dB±1dot
-20 dBm within ±1.4 dB±1dot
-30 dBm within ±1.4 dB±1dot
-40 dBm within ±1.4 dB±1dot
* Input attenuator switching error is included at the reference level other than -15 dBm.
·Setting of 2650A/2652A/2651/2658A · Setting of calibration unit
Center frequency : 100 MHz Frequency : 100 MHz
Frequency span : 10 MHz Output power : Adjust it so that the indicated
RBW : 3 MHz value of
2650A/2652A/2651/2658A
VBW : 1 MHz is at the 0th div from the top.
Sweep time : 1 s
Detection mode : SMPL
Display scale : 2 dB/div
27.3 Display Accuracy of Center Frequency
Measure the frequency with the peak search function of 2650A/2652A/2651/2658A.
Setting of 2650A/2652A/2651/2658A
Specifications
Measurement
value
Center
frequency
Judgment
Frequency
span
Center frequency Frequency span RBW
100 MHz 200 kHz 3 kHz within ±50 kHz±1dot
±RBW x 6% 100 MHz 10 MHz 30 kHz
100 MHz 20 MHz 100 kHz
within ±360 kHz±1dot
±RBW x 20%
100 MHz 200 MHz 100 kHz
1 GHz 20 MHz 100 kHz
2 GHz 20 MHz 100 kHz
3.3 GHz *1 20 MHz 100 kHz
6.1 GHz *2 20 MHz 100 kHz
8.5 GHz *2 20 MHz 100 kHz
*1 2650A/2652A/2651 only *2 2658A only
· Setting of 2650A/2652A/2651/2658A · Setting of calibration unit
Reference level : -15 dBm Frequency : Same as a center frequency of
2650A/2652A/2651/2658A.
VBW : AUTO
Sweep time : 1 s Output power : -15 dBm
Detection mode : SMPL * However, calibrate the signal generator in advance.
Display scale : 10 dB/div