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L.O. Synthesizer/Reference Troubleshooting
A16 Reference Assembly Description
4.8 GHz 1st LO Ref A16J703 2.4 GHz VCXO x 2
or 100 MHz VCXO
x 48
A14J4 4GHz reference for Offset
Loop, only used in
Dual-Loop operation
a. The 10 MHz signal from A16J713 is used a reference for the standard A3 Digital IF, which supports
analysis bandwidths up to 25 MHz.
b. The 100 MHz signal from A16J706 is used as the reference for the optional A3 Digital IF which sup-
ports analysis bandwidths up to 40 MHz on analyzers with serial prefix < MY/SG/US5233. This A3 is
used on analyzers with Options B40, MPB, or DP2.
c. The 100 MHz signal from A16J716 is used as the reference for the optional A3 Digital IF which sup-
ports analysis bandwidths up to 40 MHz on analyzers with serial prefix ≥ MY/SG/US5233. This A3 is
used on analyzers with Options B40, B85, B1A, B1X, MPB, or DP2.
d. Serial prefix ≥ MY/SG/US5233 or any with Option B85, B1A, or B1X.
e. Serial prefix < MY/SG/US5233 and none of the following options; B85, B1A, or B1X.
Table 7-2 A16 Reference Assembly Signals
Signal Description From Location Originates From To Location Purpose
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