Anritsu Spectrum Master MS2711D Maintenance Manual page 30

NOTE: Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.
5. Set the MG3692A output to 5999 MHz CW, with an RF output level of –45 dBm.
6. Press the
BW/SWEEP
7. Press the
RBW Manual
the resolution bandwidth to 1 kHz.
8. Press the
VBW Manual
the video bandwidth to 30 Hz.
9. Press the
FREQ/SPAN
10. Use the keypad to enter
11. Press the
Span
0.100 MHz.
12. Press the
AMPLITUDE
13. Press the
Ref Level
14. Press the
MARKER
15. Press and enter
Edit
16. Press the
Back
17. Press and enter
Edit
kHz higher than the center frequency).
18. Press the
Delta (M2-M1)
19. Press the
SINGLE/CONT
20. Press the
SINGLE/CONT
recorded values.
21. Subtract 30 dB from the average value and verify that the result is = –65 dBc/Hz.
(For example: –35 dBc measured – 30 dB = –65 dBc/Hz.)
NOTE: The measured value is converted to dBc/Hz using the following formula:
= -
dBc Hz / measured dBc
(
At 1 kHz RBW, 10
log
22. Press the
Back
23. Press the
Edit
to 5998.97 MHz (30 kHz lower than the center frequency).
24. Press the
Delta (M3-M1)
25. Press the
SINGLE/CONT
26. Press the
SINGLE/CONT
recorded values.
27. Subtract 30 dB from the average value and verify that the result is £ –65 dBc/Hz.
(For example: –35 dBc measured – 30 dB = –65 dBc/Hz.)
26
key and select the
soft key and use the Up/Down arrow key to select
soft key and use the Up/Down arrow key to select
key and select the
5999 and press the
1000
soft key and use the keypad to enter
key.
soft key and enter
–40
key, then select the
M1
. Press
5999 ENTER
soft key and the soft key.
M2
. Press
5999.03 ENTER
soft key.
key and read and record the D2 reading.
key and read and record five values, then calculate the average of the five
[ ]
( )
- 10
RBW
log
1 Hz
)
= = -
RBW 30 , so dBc Hz /
1 Hz
soft key and the soft key.
M3
soft key and enter 5998.97. Select the
soft key.
key and record the D3 reading.
key to read and record five values, then calculate the average of the five
soft key.
Bandwidth
soft key.
Center
key to set the center frequency to 1000 MHz.
ENTER
. Press the
0.1
. Press to set the reference level to –40 dBm.
ENTER
soft key.
to set the M1 marker frequency to 5999 MHz.
to set the M2 marker frequency to 5999.03 MHz (30
- 30.
measured dBc
soft key to set the M3 marker frequency
MHz
. Press
1 kHz ENTER
z. Press
30 H ENTER
5999
key to set the span to
ENTER
Spectrum Master MM
to set
to set