Specifications

PERFORMANCE TESTS
2 m High Frequency Test
102. Move the cursor to the LEVEL field, and set the test signal level to 0.5 V.
103. Connect the Terminal Adapter to the HP 4285A's UNKNOWN terminals using the
2 m Test Leads.
104. Store the OPEN CORRECTION data and the SHORT CORRECTION data, refer to
steps 48 to 54.
105. Press the 'DISPLAY FORMAT MENU' key to display the MEAS DISPLAY page.
106. Connect the 20 cm Air Line to the Terminal Adapter's OUTPUT terminal.
107.
Connect the 0 S Termination to the 20 cm Air Line.
108. Move the cursor to the LEVEL field, and set the test signal level to 1 V.
109. Move the cursor to the FREQ field, and set the test frequency to 10 MHz.
110. Press the TRIGGER key, and confirm that the HP 4285A's reading is within the
specified test
limits listed in Table 1-12.
111. Perform the test for
all settings listed in Table 1-12, by repeating steps 108 to
110 for each listed setting.
Table 1-12.
Impedance Measurement Accuracy Test Limits
(2 m High Frequency Test)
Test Test
Signal
Test Limits
Frequency Level
Cp D
10 MHz 1
V
C.V.±0.208
pF ±0.0149
10
MHz 2 V C.V.±0.194 pF
±0.0139
30 MHz
1
V
C.V.±0.816
pF
±0.0583
30
MHz 2 V C.V.±0.789 pF
±0.0564
C.V.:Calibrated Value
at 1 MHz, using an HP 4284A
1-23