Agilent Technologies 83640B Service Guide

23.
Modulation Meter
(Option 002)
(F
or
B-Series
Only)
Description
and
Procedure
The
mo
dulation
meter
measures
and
displa
ys
the
v
alue
of
the
externally
generated amplitude
or
frequency
mo
dulation.
This
pro cedure
determines the
accuracy of
the mo
dulation
meter.
1. Connect
the equipmen
t
as
sho
wn
in
Figure
2-32
.
Preset
the
instrumen
ts
and
let
them
w
arm
up
for
at
least
one
hour.
Figure
2-32.
Modulation
Meter
T
est
Setup
Equipment
F
unction Generator
HP/Agilen
t
3325A
Digital
V
oltmeter HP/Agilen
t
3456A
2. Set
the D
VM
to
measure
A
C.
Press:
4
10
5
4
STORE
5
4
N
CYC
INT
5
4
6
5
4
STORE
5
4
N
DIG DISP
5
3. On
the
syn
thesizer,
press
4
CW
54
10
54
GHz
5 .
4.
Set
the
function generator
for a
100 kHz,
600 mV
p-p,
sine
w
a
v
e
output
signal.
5.
On
the
syn
thesizer,
turn
on
external
AM
mo
dulation and
turn on
the
AM meter
function.
Press:
4
MOD
5
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
NN
NN
NN
AM
Menu
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
AM
On/Off
Ext
(asterisk
on).
4
PRIOR
5
NNNN
NNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNN
Monitor Menu
NNNN
NNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNN
Meter On/Off AM
(asterisk on).
6. Record the AM METER v
alue on the test record.
7. Set the function generator for a 1 kHz, 1.800 V
p-p, sine w
ave output signal. If necessary
,
adjust
the function generator for a D
VM reading of 0.6363 A
C V rms.
8. Record the AM METER v
alue on the test record.
9. Disconnect the BNC tee from
the AM input and connect it to the FM input.
10. On the syn
thesizer, turn o external AM, turn on external FM, set the FM sensitivit
yto
1 MHz/V, and turn on the FM meter function. Press:
4
MOD
5
NNNNNNNNNNNNNNNNNNNNNNN
AM Menu
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
AM On/Off Ext (asterisk o )
4
PRIOR
5
NNNNNNNNNNNNNNNNNNNNNNN
FM Menu
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
FM On/Off Ext (asterisk on)
4
1
54
MHz
5
4
PRIOR
5
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Monitor Menu
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Meter On/Off FM (asterisk on)
Agilent 8360 Performance Tests
Modulation Meter
2-107

Agilent Technologies 83640B Specifications

General

Brand	Agilent Technologies
Model	83640B
Category	Portable Generator
Language	English