6-36
Performance Tests – Option 011
11. Receiver Input Impedance
2Press PRESET, MENU, NUMBER of POINTS, 1601, x1.
3Press CAL, CAL KIT & STDS, SELECT CAL KIT, N 50 Ω, RETURN, RETURN, CALIBRATE
MENU, S11 1-PORT.
4Connect an open to the test port cable adapter, by pressing FORWARD: OPENS,
OPEN (M), DONE: OPENS.
5Connect a short to the test port cable adapter, by pressing FORWARD: SHORTS,
SHORT (M), DONE: SHORTS.
6Connect a 50Ω termination to the adapted test port cable, by pressing
FORWARD: LOAD, DONE 1-PORT CAL.
7Remove the 50Ω termination from the test port cable adapter. Connect the
adapted test port cable to the analyzer Input B. Press SCALE REF, AUTO SCALE.
8Press MARKER, 300, k/m to set the marker 1 to 300 kHz. Write the marker value,
which appears on the analyzer display, on the “Performance Test Record.”
9Press MARKER 1, 2, M/µ, MARKER 2, 1.3, G/n to set marker 1 and marker 2 to 2 MHz
and 1.3 GHz respectively.
10 Use the analyzer front panel knob to move marker 2 to the peak value between
2 MHz and 1.3 GHz. Write the marker 2 reading on the “Performance Test
Record.”
11 Press MARKER 1, 1.3, G/n, MARKER 2, 3, G/n to set marker 1 and marker 2 to
1.3 GHz and 3 GHz respectively.
12 Use the analyzer front panel knob to move marker 2 to the peak value between
1.3 GHz and 3 GHz. Write the marker 2 reading on the “Performance Test
Record.”
13 Connect the equipment as shown in Figure 6-18.
NOTE
The marker 2 reading represents the worst case return loss of the receiver input in the
frequency range of 2 MHz to 1.3 GHz.