Anritsu Company Site Master S312D, Maintenance Manual, Page: 17 / 62

Performance Verification 2-5 Spectrum Analyzer Frequency Accuracy
S312D MM PN: 10580-00195 Revision B 2-7
2-5 Spectrum Analyzer Frequency Accuracy
The following test can be used to verify the CW frequency accuracy of the Site Master Spectrum Analyzer.
Required Equipment (refer to
Table 1-1
):
• Anritsu Model MG3692x Synthesized Signal Generator
• Frequency Reference Symmetricom Rubisource T&M
• Site Master S312D
Procedure:
1. Connect the 10 MHz reference source to the Synthesized Signal Generator.
2. Connect the output of the source to the Spectrum Analyzer RF Input of the Site Master.
3. 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.)
4. Set the Synthesized Signal Generator output to 1000 MHz CW, with an RF output level of 0 dBm.
5. On the Site Master, press the
MODE
key. Use the
Up/Down
arrow key to highlight
Spectrum Analyzer
and
press
ENTER
to select spectrum analyzer mode.
6. Press the
AMPLITUDE
key and the
Ref Level
soft key.
7. Enter
20
and press the
ENTER
key to set the Reference Level to 20 dBm.
8. Press the
FREQ/DIST
key and the
Center
soft key.
9. Enter
1000
and press
ENTER
to set the center frequency to 1000 MHz.
10. Press the
Span
soft key, enter
20
, and press the
kHz
soft key to set the span to 20 kHz.
11. Confirm that the RBW is 100 Hz, and the VBW is 30 Hz. If adjustment of the RBW and VBW are
required:
a. Press the
MEAS/DISP
key and the
Bandwidth
soft key.
Figure 2-4. Spectrum Analyzer Frequency Accuracy Test Setup
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
MG369XA Source
10 MHz Reference
to rear panel
connector
S312D