Anritsu Company Site Master S312D, Руководство по обслуживанию

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2-3 VNA Return Loss Verification Performance Verification
2-4 PN: 10580-00195 Revision B S312D MM
2-3 VNA Return Loss Verification
The following test can be used to verify the accuracy of return loss measurements. Measurement calibration of
the Site Master is required for this test.
Required Equipment (refer to
Table 1-1
):
• Site Master S312D
• Open/Short, Anritsu Model 22N50
• 50 ohm termination, Anritsu Model 28N50-2
Procedure:
1. Press and hold the
ESCAPE/CLEAR
key, then press the
ON/OFF
key to turn on the Site Master. (This
sets the instrument to the factory preset state.)
2. Press the
MODE
key.
3. Use the
Up/Down
arrow key to highlight
Return Loss
, then press
ENTER
.
4. Press the
START CAL
key.
5. Follow the instructions on the screen to perform a calibration using a 22N50 Open/Short and
28N50-2 Termination.
6. Connect the 20 dB offset to the RF Out port and record the minimum and maximum values in Table A-2,
“VNA Return Loss Verification” on page A-2 .
7. Connect the 6 dB offset to the RF Out port and record the minimum and maximum values in Table A-2 .
Figure 2-2. VNA Return Loss Verification Test Setup
28N50-2
S312D
22N50
SC5270
SC5237
HOLD
RUN
START
CAL AUTO
SCALE
SAVE
SETUP RECALL
SETUP
LIMIT MARKER
SAVE
DISPLAY RECALL
DISPLAY
PRINT
SYS
ENTER
CLEAR
ESCAPE
ON
OFF
1
2
4
5 6
7 8
0 9
3
MODE FREQ/DIST AMPLITUDE MEAS/DISP
SiteMaster
S332D
Site Master
1