R3765/67G Series Network Analyzer Operation Manual
10.9 Dynamic Level Accuracy
10-54
(16) Set the step attenuator to 20 dB.
(17) Press [CAL] and {NORMALIZE(THRU)}to do normalization.
(18) Set the step attenuator to 10 dB.
(19) Read out the marker level.
(20) Repeat steps (18) and (19) on each set level listed on the Table 10-3.
(21) For each set level, calculate the dynamic level error using the following formula:
(dynamic level error) = (measured value) - (Offset value)
NOTE: The offset value is a attenuator error at the reference point.
(Offset value)=(calibration factor of the attenuator at the reference point)-(calibration
factor of the attenuator at the set level)
10.9.3 Dynamic Level Accuracy for the R3765CG/67CG
This section describes the detail test procedure of the dynamic level accuracy. This section
applies only to the R3765CG/67CG.
10.9.3.1 Specifications
Reference level : -16 dBm
(-21 dBm for OPT 10, -33 dBm for OPT 10 + OPT 12, -28 dBm for OPT 12)
0 dB to -10 dB : ±0.20 dB (300kHz to 3.8GHz)
0 dB to -10 dB : ±0.40 dB (3.8GHz to 8GHz)
-10 dB to -50 dB : ±0.05 dB
-50 dB to -60 dB : ±0.10 dB
10.9.3.2 Instruments Required
• Step attenuator (Range: 0 to 90 dB, Accuracy within 0.02dB)
Recommended model: HP8496B
• RF cable (SMA(m)/SMA(m) 50Ω) quantity=2
Recommended model: A01253-060
• Adopter (N(m)/SMA(f)) quantity=2
Recommended model: HRM-554S
• 3-dB attenuator (SMA(f)/SMA(m)) quantity=2
Recommended model: AT-103
• 50Ω to 75Ω conversion adapter (75Ω N(m)/50Ω N(f)) × 2: 11852B (For OPT 12)
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