Reference Loop M/N Loop Introduction; Reference Loop M/Nloop Introduction; Assemblies; A30100 Mhz - HP 8340B Manual

Reference Loop
—
M/N
Loop
Introduction
ASSEMBLIES
Reference Loop
The reference
loop produces
all of the
reference signals
that are used in the other phase-locked
loops.
The reference
loop consists of the following assemblies:
•
A29 reference phase detector assembly
•
A30100 MHz VCXO (voltage-controlled crystal oscillator) assembly
•
A34
reference loop
—
M/N
loop motherboard
•
A5110 MHz
standard
M/N
Loop
The
M/N
loop generates
the 177-197 MHz
signal
that drives the
A48 sampler
in the
YO
loop.
The M/N Loop consists of the following assemblies:
•
A31 M/N
phase detector assembly
•
A32 M/N VCO
(voltage-controlled oscillator) assembly
•
A33 M/N
output assembly
•
A34 reference
loop
—
M/N
loop motherboard
HP 8340B/41B
Reference Loop
-
M/N
Loop Introduction B-l