1.
Output
Attenuator
A
ccuracy
Equipment
Measuring
receiver
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HP
8902A
Host
spectrum
analyzer
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HP
8560A/E,
8561A/B/E,
HP
8562A/62B
,
or
HP
8563A/E
Cables
Type
N,
62
cm
(24
in)
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HP
11500B/C
BNC,
62
cm
(24
in)
(3
required)
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8120-1839
SMA,
52
cm
(20
in)
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5061-9038
Procedure
1.
Connect
the
equipment
as
shown
in
Figure
4-2.
Use
the
type
N
cable
to
connect
the
tracking
generator
RF
OUTPUT
to
the
host
spectrum
analyzer's
INPUT
50.
2.
Press
4
PRESET
5
on
the
host
spectrum
analyzer
and
set
the
controls
as
follows:
CENTER
FREQ
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300
MHz
SP
AN
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.
0
Hz
RES
BW
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300
Hz
3.
If
the
host
spectrum
analyzer
is
an
HP
8561A,
HP
8562A,
or
HP
8562B
,
press
4
SWEEP
5
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
REAR
PNL
OUTPUT
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
.5
V/GHz
(FAV)
.
If
the
host
spectrum
analyzer
is
an
HP
8560A/E,
HP
8561B/E,
or
HP
8563A/E,
press
4
AUX
CTRL
5
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
REAR
PANEL
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
.5V/GHz
(FAV)
.
4.
On
the
tracking
generator
,
set
the
OUTPUT
LEVEL
vernier
knob
to
05
dBm.
Set
the
OUTPUT
LEVEL
attenuator
knob
to
0
dB
,
then
adjust
TRA
CKING
ADJUST
to
display
a
maximum
signal
level
on
the
host
spectrum
analyzer
.
5.
Set
the
tracking
generator
OUTPUT
LEVEL
vernier
to
0
dBm.
Do
not
readjust
the
OUTPUT
LEVEL
vernier
control
for
the
remainder
of
this
test.
6.
Connect
the
type
N
cable
to
the
tracking
generator
RF
OUTPUT
and
the
measuring
receiver
INPUT
50
connectors
.
7.
On
the
measuring
receiver
,
press
the
blue
shift-key
A
UTOMA
TIC
OPERA
TION
(INSTR
PRESET),
FREQ
4
MHz
5
(INPUT
FREQ),
gold
shift-key,
RF
POWER
(TUNED
RF
LEVEL),
4.4,
4
SPCL
5 ,
32.0,
4
SPCL
5 ,
blue
shift-key
,
ZERO
(SET
REF),
LOG/LIN.
The
display
should
read
0.00
dB
60.01
dB
.
8.
Set
the
tracking
generator
OUTPUT
LEVEL
attenuator
control
to
each
of
the
settings
listed
in
T
able
4-3 .
If
RECAL
is
displayed
on
the
measuring
receiver
,
press
CALIBRA
TE.
At
each
attenuator
setting,
subtract
the
attenuator
setting
(always
negative)
from
the
measuring
receiver
reading
and
record
the
result
as
the
cumulative
attenuator
accuracy
(CAA)
in
T
able
4-3 .
CAA
=
measuring
receiver
reading
0
attenuator
setting
9.
Calculate
the
step-to-step
attenuator
accuracy
for
each
setting
other
than
0
dB
by
subtracting
the
previous
CAA
from
the
current
CAA.
Record
the
result
in
T
able
4-3
as
the
step-to-step
attenuator
accuracy
(SSAA)
for
the
current
attenuator
setting.
SSAA
=
current
CAA
0
previous
CAA
HP
85640A
RF
T
racking
Generator
Operation
and
Service
Manual
P
erformance
T
ests
4-7
Содержание 85640A
Страница 2: ...HP 85640A RF Tracking Generator Operation and Service Manual ABCDE Printed in USA ...
Страница 111: ......
Страница 169: ......
