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HP
Portable Generator
8647A
HP 8647A User Manual
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Manual
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Peak
Deviation
Range
<
249
MHz
<
501
MHz
5
1OOOMHz
Resolution
10.01
radian
0
to
10
radians
0
to
5
radians
0
to
10
radians
Deviation
Accuracy
(internal
1
kHz
rate, typical)
f7.5%
of
deviation setting
f0.05
radians
Rates
Internal
€Wema1
Amplitude
Modulation
AM
performance
is
not
specified
below
1.5
MHz.
400
Hz
or
1
kHz
20
Hz
to
10
kHz
(typical,
3
dB
BW)
Distortion
(1
kHz
rate)
Resolution
10.1%
<
2%
at deviations
2
3
radians
I
I
Accuracy
(1
kHz
rate)
115%
of
setting
f1.5%
Range
0
to
100%;
output
5
4
dBm
Rates
Internal
Ezternal
Specifications
4-5
400
Hz
or
1
kHz
20
Hz
to
25
kHz
(typical,
3
dB
BW)
Distortion
(1
kHz
rate,
THD
+
Noise,
0.3
to
3
kHz
BW)
at
30%
AM
at
90%
AM
<
2%
<
3%
103
105
Table of Contents
Table of Contents
10
Operation
17
Quick Overview
17
Powerkey
17
Increment Set Keys
17
Function and Data Keys
17
Display Contrast
17
Knobs
17
Memory
18
Modulation Source
18
Operation Examples
19
Setting the RF Output Signal
20
Setting the Frequency
20
Setting the Amplitude
20
Turn on the RF Output
21
Setting the Modulation
21
Incrementing or Decrementing the RF Output Signal
22
Preliminary Steps
22
Using the Knob
22
Using the Increment Keys
23
Using the Memory Registers
24
Saving Instrument Settings in Register Sequences
25
Saving Settings in Registers
25
Checking the Sequence
27
Checking a Different Sequence
27
Deleting a Register from the Sequence
29
Selecting the Sequence
29
Deleting a Register
29
Renumbering the Registers in a Sequence
31
Decreasing the Register Number
31
Checking the Sequence
32
Inserting a Register in a Sequence
33
Saving a New Register
34
Offsetting the RF Output from a Reference
35
Setting the Reference Value
35
Offsetting the RF Output
35
Turning the Reference Mode off or
36
Setting a New Reference Value
37
Holding the Output Attenuator Range
38
Set the Amplitude Level
38
Holding the Attenuator
38
Adjusting the Amplitude
39
Operation Reference
40
Frequency and Amplitude
41
Knob
41
Digit-Select Arrow Keys
41
Refset
42
Units
42
Ref On/Off
42
Function
43
Frequency
43
Amplitude
43
Increment Set
44
Incrset
44
Backspace
45
Units Conversion
45
Instrument Preset
46
Adrs
48
Local
48
Memory
49
Reg 99
49
Seq 9
49
Register Recall Arrows
51
Renumbering the Registers
53
Modulation Source
54
Modon/Off
55
INT 400 Hz INT Khz
55
Extacextdc
55
Khz EXT DC
56
Setting the Modulation Level
56
Rf Output
57
Rfon/Off
57
Attnhold
57
Vernier Ranges
57
Rfoutput
58
Rear Panel
59
Display Contrast
59
Auxiliary Interface
60
Line Voltage Connector
60
HP-IB Connector
60
Remote Interface (Accessory)
61
Modon/Off
61
Rfon/Off
61
Sequence Selection Arrows
62
Memory Interface (Accessory)
63
Power
63
Copy Arrow Keys
64
Making a Copy
64
Busy
64
Operation Messages
65
Front Panel Operation Messages
65
HP-IB Command Errors
69
HP-IB Execution Errors 1C-7
71
HP-IB Device-Specific Errors
71
HP-IB Query Errors
71
Service Messages
72
Hp-IB Programming
73
Background
73
Programming Guidelines
74
HP-IB Definition
74
HP-IB Address
74
What Is Programmable
74
Error Messages
74
Programming Language
74
Advanced Programming
74
Programming Examples
75
Programming RF Frequency
75
Programming RF Frequency and FM Modulation
75
Programming RF Amplitude
76
HP-IB Status Reporting
79
External Modulation Input Level Status
80
Modulation Input (High or Low)
81
Reverse Power Protection Status
82
Example: Check the Condition of Unspecified Power
83
HP 8647A SCPI Command Reference
84
AM Subsystem
85
CAL Subsystem
85
FM Subsystem
86
Output Subsystem
87
PM Subsystem
88
Power Subsystem
89
STATUS Subsystem
90
System Subsystem
91
HP-IB Capabilities
92
HP-IB Connector Information
93
Replacing the Fuse
96
Power Cable and Mains Plug
97
Only)
119
Replaceable Parts
128
FM Accuracy Performance Test
134
FM Distortion Performance Test
135
AM Accuracy Performance Test
137
AM Distortion Equipment Setup
138
AM Distortion Performance Test
138
Phase Modulation Distortion Equipment Setup
140
Phase Modulation Accuracy Performance Test
140
Phase Modulation Distortion Equipment Setup
141
Phase Modulation Distortion Performance Test
141
Residual FM Equipment Setup
143
Residual FM Performance Test
143
Harmonics Equipment Setup
145
Harmonics Performance Test
145
Spurious Equipment Setup
146
Spurious Performance Test
146
DC FM Frequency Error Performance Test
147
CW Frequency Accuracy Equipment Setup
149
RF Level Accuracy Performance Test
165
CW Frequency Accuracy Performance Test
170
4
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HP 8647A Specifications
General
Brand
HP
Model
8647A
Category
Portable Generator
Language
English
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