Anritsu Spectrum Master MS2721A Maintenance Manual page 23
Spectrum analyzer
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Also See for Spectrum Master MS2721A:
- Specifications (4 pages) ,
- Firmware update (4 pages) ,
- Programming manual (59 pages)
Table of Contents
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c.
Measuring the Unit for Frequency Level Accuracy
1.
Remove Sensor A, add an adapter, and connect to the MS2721A as shown in Figure 2 below.
L i n e
O p e r a t e
S t a n d b y
Figure 3.
Frequency Level Accuracy Test Setup
2.
Connect the external power supply (Anritsu part number 40-168) to the Spectrum Master.
3.
Press the
ON/OFF
4.
Press the
Shift
conditions.
NOTE: Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.
5. Press the
Amplitude
6.
Use the keypad to enter 10 and press the
7.
Press the
Atten Lvl
8.
Press the
BW
9. Use the keypad to enter 1 and select the
10. Press the
VBW
11. Press the
Span
12. Press the
Freq
13. Use the keypad to enter 50 and select the
14. On the Power Meter, press the
50 MHz for the Input Signal Frequency. This sets the power meter to the proper power sensor cal factor. Press
the
key to display the power reading.
Sensor
15. Set the MG3692A output to match the frequency in the preceding step.
16. Adjust the source power level so that the power meter displays the corresponding Sensor B reading as recorded
for –2 dBm in Table 6 for this same frequency.
Spectrum Master MM
ML2438A POWER METER
F r e q u e n c y
C l e a r
E n t r y
L e v e l
7
M o d u l a t i o n
4
S y s t e m
1
0
MG3692A SOURCE
34RSN50 ADAPTER
key to turn on the Spectrum Master.
key, the
(1) key, and then the
Preset
key and select the
Reference Level
soft key and enter 60, then press the
soft key and the
soft key.
RBW
kHz
soft key and use the keypad to enter 10, then select the
key, use the keypad to enter 10, and select the
key and select the
Center Freq
key and then the
Sensor
B a c k
S p a c e
O u t p u t
8
9
O n O f f
5
6
15NNF50-1.5C
R F O u t p u t
5 0 9
2
3
.
+ / -
10 dB
ATTENUATOR
soft key to reset the instrument to the default starting
Preset
soft key.
soft key.
dBm
soft key.
dB
soft key.
soft key.
kHz
soft key.
soft key.
MHz
soft key. Select the
CalFactor
SENSOR B
MA2442A
N241A50
34NN50A
ADAPTER
soft key.
Hz
soft key and enter
FREQ
19
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