
23
9.1.2.2 Impedance Formats
9.1.2.2.1 S11 Measurements
Total Z, Z angle, Resistance, Reactance, SWR, Return loss, Reflection
Coefficient (RC) magnitude, RC angle
9.1.2.2.2 S21 Measurements
Linear Gain, Gain angle, Logarithmic Gain
9.1.2.3 Accuracy
9.1.2.3.1 Impedance
The accuracy varies as a function of the load.
+/- 1 ohm at 10 ohm load
+/- 1.5 ohms at 50 ohm load
+/- 4 ohm at 100 ohm load
+/- 35 ohms at 500 ohm load (freq < 75MHz)
+/- 35 ohms at 300 ohm load (freq >= 75MHz)
Indication only above 500 ohms load (freq < 75MHz)
Indication only above 300 ohms load (freq >=75MHz)
9.1.2.3.2 Phase
< +/- 5 degrees (below 50MHz).
< +/- frequency(MHz)/10 (above 50MHz).
9.1.2.4 Spectrum Analyzer
This spectrum analyzer has no RF filtering, and can display image signals as well
as actual signals. The IF BW filter has sidelobes that show on the displayed
spectrum.
9.1.2.4.1 Range
50 dB
9.1.2.4.2 Reference level
+10dBm
9.1.2.4.3 Accuracy
+/- 5 dB <50MHz, not specified above 50 MHz.
9.1.3 Display Characteristics
64 by 128 pixel Super twist LCD.
Graph area: 81 by 57 pixels or 101 by 57 pixels
Character height: 2.5 mm standard, 7.5mm for large format