Instruction manual

258 Chapter 12
Specifications and Supplemental Performance Characteristics
Basic Measurement Characteristics
At the following points, measurement error may exceed the specifications described here
due to the 4287A’s spurious characteristics:
109.7 MHz, 153.6 MHz, 177.2 MHz, 256.0 MHz, 329.1 MHz, 460.8 MHz, 768.0 MHz
Examples of Calculated Impedance Measurement Accuracy
Figure 12-1 Oscillator Level ≥ −33 dBm, Averaging Factor ≥ 8, Temperature Deviation ≤ 5°C
Oscillator level < −33
dBm
± (100 + 0.15 × F) [μS] (F: Frequency [MHz])