HP 8753D Option 011 User Manual

6.
A syn
thesized sub
sweep
is generated.
The source
tracks
the
syn
thesizer.
When
lo
c
k
is
achiev
ed at
the
start
frequency
,
the
syn
thesizer
starts
to
sw
eep.
This c
hanges the
phase
lo
c
k
reference
frequency
,
and causes
the source
to trac
kat
a dierence
frequency 40
MHz
b
elow
the syn
thesizer.
Figure
LBBLK12
here.
Figure
12-4.
Lo
w
Band
Operation
of
the
Source
The
full
lo
w
band
is
pro
duced in
t
w
o
sub
sw
eeps,
to
allo
w
addition
IF
ltering
b
elo
w
3
MHz
.
A
t
the
transition
b
et
w
een
subsw
eeps,
the
source
is
pretuned
and
then relo
c
ks.
T
able
12-2
lists
the
lo
w
band
subsw
eep
frequencies
at
the
fractional-N
V
CO
and
the
RF
output.
T
able
12-2.
Lo
w
Band
Subsw
eep
Frequencies
Fractional-N
(MHz)
1st IF
(MHz)
RF Output
(MHz)
40.3
to
43.3
0.3
to
3.3
0.3
to
3.3
43.3
to
56.0
3.3
to
16.0
3.3
to
16.0
12-12 Theory of Operation DRAFT
3/21/106 15:14
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HP 8753D Option 011 Specifications

General

Brand	HP
Model	8753D Option 011
Category	Measuring Instruments
Language	English