Keysight Technologies N9030B Service Manual page 267

LO Synthesizer/Reference Troubleshooting
A16 Reference Assembly Description
Table 8-3
Assembly.
Table 8-3 A16 Reference Assembly Signals
Signal Description
External Reference Input
(1 to 50 MHz,
-5 dBm to +10 dBm)
10 MHz Out DIF
50 MHz Align Signal
4800 MHz
Align Signal
50 MHz Ecal/300 MHz
Comb Output
100 MHz LO Synth
100 MHz Ref A
100 MHz Ref B
100 MHz Ref C
300 MHz LO AIF
2.4 GHz Ref
4.8 GHz 2nd LO
4.8 GHz 1st LO Ref
N9030B PXA Signal Analyzer Service Guide
lists all the reference signals provided by the A16 Reference
From Location Originates From
Input from User n/a
A16J710 10 MHz Reference
A16J701 100 MHz
VCXO/2
A16J701 2.4 GHz
VCXO x 2
A16J705 100 MHz
VCXO/2,
100 MHz
VCXO x 3
A16J706 100 MHz
VCXO
A16J707 100 MHz
VCXO
A16J716 100 MHz
VCXO
A16J717 100 MHz
VCXO
A16J711 100 MHz
VCXO x 3
A16J718 2.4 GHz
VCXO
A16J702 2.4 GHz
VCXO x 2
A16J703 2.4 GHz
VCXO x 2
To Location Purpose
A16704 Phase Lock analyzer with
user-provided reference.
Not used Reserved for future use
A9 50 MHz Low band
alignment signal
A9 4.8 GHz High band
alignment signal
A13J6 50 MHz Cal Signal or
300 MHz Comb for
wideband IF phase
linearity
A14J10 100 MHz reference for
both single-loop and
dual-loop operation
Not used Reserved for future use
A3J14 Frequency reference for
A3 Digital IF (DIF)
assembly. Divided by 10
on DIF to provide
10 MHz OUT on rear
panel.
Not used Reserved for future use
A2J300 Used as 3rd LO on A2
Analog IF (AIF) assembly
A25J301 Reference for A25
Wideband Digital IF
(WDIF)
A13J1 2nd LO for A13 Front End
assembly, downconvert
low band 1st IF to
322.5 MHz 2nd IF
A14J4 4.8 GHz reference for
Offset Loop, only used in
Dual-Loop operation
267