Agilent Technologies 83640B Service Guide

21.
Modulation Generator
Flatness (Option
002)
(8360
B-Series
Only)
Description
and
Procedure
The
in
ternal
mo
dulation
generator
is
set
up
for
FM
op
eration.
A
100 kHz
rate, measured
at
the
AM/FM
OUTPUT
connector,
is
used as
the reference
amplitude. A
calibration constan
t
is adjusted
so the
AM/FM
output
signal
is
the
same
amplitude
as
for
a
1
MHz
FM
rate.
1.
Connect
the
equipmen
t
as
sho
wn
in
Figure
3-40
.
Preset all
instruments
and let
them w
arm
up
for
at
least one
hour.
Figure
3-40.
Modulation
Generator Flatness
Adjustment Setup
Equipment
Digitizing
Oscilloscop
e
HP/Agilen
t
54111D
2.
On
the
syn
thesizer,
press:
4
MOD
5
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
N
N
N
N
FM
Menu
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
FM
On/Off
Int (asterisk
on)
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
Internal FM
Rate
4
100
54
kHz
5
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
Internal FM
Dev
4
8
54
MHz
5
4
PRIOR
5
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
N
Monitor Menu
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
ModOut On/Off
FM
3.
On
the
oscilloscop
e,
set:
Channel
1
Display On
Volts/Division 210 mV
Input Coupling
dc
Input Impedance
50 
Timebase
Time/Division 2  s
Delay Reference
Center
Sweep Auto
Trigger
Trigger Mode Edge
Trig Src Chan 1
Slope Pos
3-92 Adjustments
Modulation Generator Flatness
Agilent 8360

Agilent Technologies 83640B Specifications

General

Brand	Agilent Technologies
Model	83640B
Category	Portable Generator
Language	English