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Measuring Instruments
4934A
HP 4934A User Manual
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Mating
Connectors
(Front
Panel)
The
TRMT
and
RCV
front
panel
jacks
are
310-type
connectors.
The
mating
plug
for
the
jacks
is
part
number
HP
1251-0695.
Operating
Environment
This
instmment
is
designed
for
indoor
use
only.
Temperature
The
instrument
may
be
operated
in
temperatures
from
0
degrees
centigrade
to
+50
degrees
centigrade.
The
temperature
for
battery
operation
is
0
degrees
centigrade
to
+50
degrees
centigrade.
Humidity
The
instrument
may
be
operated
in
environments
with
humidity
up
to
95%
at
40
degrees
centigrade.
However,
the
instrument
should
also
be
protected
from
temperature
extremes
which
may
cause
condensation
within
the
instmment.
Altitude
The
instmment
may
be
operated
at
altitudes
up
to
4,600m
(15,000
ft).
Air
Flow
To
provide
adequate
cooling,
an
air
gap
of
approximately
3
inches
should
be
maintained
around
the
instrument.
Cleaning
To
clean
the
raodule/instrument:
Use
a
soft,
clean
damp
cloth
to
clean
the
front-panel
and
clam
shell
covers.
CAUTION
This
instrument
is
designed
for
use
in
Installation
Category
II
and
Pollution
Degree
2
per
lEC
61010
and
60644
respectively.
4-4
Installation
61
63
Table of Contents
Table of Contents
5
Getting Started
11
Introduction
11
Switch-On
11
Front Panel Features
12
Demonstrating the HP 4934A
15
Demonstration 2
16
Error Codes
17
Making Measurements
19
Preliminary Setup
19
Connecting the HP 4934A to the Test Circuit
19
Dial and Hold
20
Dialing Using the HP 4934A and a Bott-In
21
Receiving an Incoming Call and Holding the Line
22
Level and Frequency
23
Principles
23
Instrument Operation
25
Message Circuit Noise
28
Principles
28
How It Is Measured
29
Instrument Operation
30
Noise with Tone (Notched Noise)
31
Principles
31
How It Is Measured
31
Instrument Operation
32
Signal to Noise
33
Principles
33
How It Is Measured
33
Instrument Operation
34
Impulse Noise
35
Principles
35
Instrument Operation
36
P/AR (Peak to Average Ratio)
39
Principles
39
How It Is Measured
40
Instrument Operation
40
Noise to Ground
41
Principles
41
How It Is Measured
41
Instrument Operation
42
General Information
43
Introduction
43
About this Version
43
Specification
44
Safety Information
44
General
44
Safety Symbols
45
Statement of Compliance
47
Electromagnetic Compatibility (EMC) Information
47
Instruments Covered by Manual
49
Options Available
50
Accessories Supplied
51
Accessories Available
51
Specifications
52
Installation
59
Introduction
59
Initial Inspection
59
Preparation for Use
60
Power Requirements
60
Line Fuse
60
Power Cable
61
Battery (Option 001 or Retrofit)
61
Battery
61
Mating Connectors (Front Panel)
62
Operating Environment
62
Cleaning
62
Noise Declaration
63
Storage and Shipment
63
Environment
63
Packaging
63
Performance Tests
65
Introduction
65
Calibration Cycle
65
Recommended Test Equipment
66
Operational Verification
67
Receiver Frequency
68
Receiver Level
69
Weighting Filters
70
Impulse Noise Count
73
Hold Circuit
75
Dynamic Hold Circuit
77
Transmitter Frequency Accuracy
83
Transmitter Level Range
84
Transmitter Level Accuracy
85
Transmitter Flatness at +10 Dbm
86
Transmitter Flatness at -40 Dbm
88
Receiver Frequency Range/Accuracy
94
Receiver Level Accuracy
96
Message Circuit Noise Accuracy
98
Notch Filter Rejection
100
Signal to Noise Ratio Accuracy
101
Impulse Noise Threshold Accuracy
103
Noise to Ground Accuracy
105
Peak to Average Ratio (P/AR) Accuracy
107
Software Downloading
113
Introduction
113
Quick Download Procedure
114
About the DOWNLOAD Program
115
Remote Control
117
Introduction
117
The Serial Port 7~2
118
Serial Port Type
118
Baud Rates
118
Cable Pinout
119
Null Modem
119
Setting up for Remote Control
120
Connecting the TIMS to a Controller
120
Setting the Baud Rate
120
Activating Remote Mode
120
Deactivating Remote Mode
120
Control Commands
121
Query Commands
124
Results Display (DISP?) Format
124
Range Error Messages
125
A Service Accessory 1 (Sal)
127
20 Db Amplifier/4 Khz Filter
127
Performance Test
127
B Service Accessory 2 (SA2)
133
Power Splitter/Adder
133
Performance Test
133
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HP 4934A Specifications
General
Brand
HP
Model
4934A
Category
Measuring Instruments
Language
English
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