Keysight N9010A EXA Service Guide 319
L.O. Synthesizer/Reference Troubleshooting
A16 Reference Assembly Troubleshooting
Table 8-3 A16 Reference Assembly Signal Measurement Details
Signal
Description
Signal
Location
Expected
Frequency
(MHz)
Expected Power
Level
(dBm)
Special Instrument
Conditions
Figure
50 MHz
Ecal Out
A16J705 50 MHz −26 to −29 dBm
typical
While monitoring A16J705
output, place functioning
spectrum analyzer in Max
Hold. Press
System,
Alignments, Align
Now
, All on EXA.
Figure
8-11
4.8 GHz
2nd LO Out
A16J702 4800 MHz +10 dBm ± 2 dB
Press
Freq, 1 GHz,
Span, Zero Span on EXA
Figure
8-12
4.8 MHz
1st LO Ref Out
A16J703 4800 MHz +4 dBm
Press
Freq, 50 MHz,
Span, Zero Span,
Meas Setup, PhNoise
Opt
, Best Close in
PNoise
on EXA
Figure
8-13
50 MHz Ref Out A16J701 50 MHz −25 dBm
Press
Input/Output, RF
Calibrator
, 50 MHz on
EXA
Figure
8-14
4.8 GHz Ref
Out
A16J701 4800 MHz −28 dBm
Press
Input/Output, RF
Calibrator
, 4.8 GHz on
EXA
Figure
8-15
2.4 GHz Ref
Out
A16J718 2400 MHz
+10 dBm
a
or
-12.5 to
-15.5 dBm
b
Figure
8-16
or
Figure
8-17
300 MHz
LO AIF
A16J711 300 MHz +10 dBm
Figure
8-18
100 MHz Ref
Output
b
A16J706 100 MHz +13 dBm
Figure
8-19
100 MHz Ref B
Out
a
A16J716 100 MHz +13 dBm
Figure
8-20
10 MHz
Output
c
A16J710 10 MHz +7 dBm
Figure
8-21
a. Use on units serial prefix ≥ MY/SG/US5648 with any of the following options: B40, MPB, DP2
b. Used on units serial prefix < MY/SG/US5648 with any of the following options: B40, MPB, DP2
c. Used in units without any of the following options: B40, DP2, MPB