Eaton 2075 User manual

OPERATION MANUAL
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Tel. [phone]
FAX 5516
EATON 2075
NOISE-GAIN
ANALYZER
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REVISED DECEMBER 1985
Eaton Corporation
Electronic Instrumentation Division
Los Angeles. California 90066
II

WARRANTY
Eaton Corporation, Electronic Instrumentation Division, (SELLER) warrants each new
instrument tobe free from defects in material and workmanship, effective after delivery to
the original purchaser as follows:
Electrical and Electronic Measuring Instruments ...... 1 Year
Re pair or replacement (at our option) without eh arge (F.O. B. factory) will be effected when
our examination satisfactorily indicates that defects are due to workmanship or materials.
Electron tubes, semiconductors, batteries, fuses, lamps, thermoelements, and Ratio
Tran potentiometers are excluded from warranty coverage. Warranty returns must first be
authorized by the factory.
lf the instrument or any portion thereof, has been abused, misused, damaged by accident or
negligence, or if any serial number or seal has been removed or altered, the warranty is
void.
This warranty is in lieu of all other warranties, express or implied INCLUDING THE
IMPLIED WARRANTY OF MERCHANTABILITY, or fitness for a particular purpose. In no
event shall the SELLER be liable for INCi DENTAL OR CONSEOUENTIAL damages. The
SELLER neither assumes, nor authorizes any person to assume for it, any other liability in
connection with sales of instruments manufactured by SELLER.
With respect to repairs, the foregoing warranty shall apply for a period of ninety days to
the repaired portion.
REPAIR AND MAINTENANCE
Instruments should be returned only on prior authorization from the Representative or
the factory. You will be advised of detailed shipping instructions at that time. Return the
instrument to the factory prepaid. Validity of warranty will be determined by the factory.
Chargeable repairs: lf requested, an estimate of charges will be made prior to repairs.
Please provide us with the following information in order to expedite the processing of
your instrument:
1. Model or Type 5.
2. Serial Number
3. Description of trouble (1) 6.
4. Approximate date instrument
was placed in operation. 7.
Approximate number of
hours in use.
Maintenance action previously
requested or performed
Other comments.
111
lnclude data on symptoms. measurements taken. suspected locat1on ot trouble. ma1ntenance act1on taken and any other
relevant data
SERVICE
Additional service information can be made available by calling any of these Eaton Sales
and Service Centers:
Elmhurst, IL [phone]
Fairfield, NJ [phone]
Los Angeles, CA - [phone]
Oakton, VA [phone]
Sunnyvale, CA (408) 733-657 4
FRANCE • Argenteuil • Telephone: [phone] • Telex: 609036
UNITED KINGOOM • Wokingham • Telephone: [phone] • Telex: 847238
GERMANY • Munich • Telephone: [phone] • Telex: 529420

EATON2075
Paragraph
1-1
1-2
1-3
1-4
1-5
1-6
1-7
1-8
1-9
2-1
2-2
2-3
2-4
2-5
2-6
2-7
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2-10
2-11
3-1
3-2
3-3
3-4
3-5
3-6
3-7
3-8
3-9
3-10
3-11
3-12
3-13
3-14
3-15
3-16
3-17
TABLE OF CONTENTS
TABLE OF CONTENTS
Tide
SECTION 1-GENERAL INFORMATION
Scope and Organization
of the Manual .................................... .
Introduction
......................................................... .
Purpose and Use
of Equipment. ......................................... .
Calibration Cycle
..................................................... .
Equipment Supplied
................................................... .
Equipment Required But Not Supplied
.................................... .
Optional Accessories
.................................................. .
Specifications
........................................................ .
Safety Precautions
.................................................... .
SECTION
2- INSTALLATION
Introduction
......................................................... .
Unpacking and Physical Inspection
...................................... .
AC Power Requirements
............................................... .
Operational Inspection
................................................. .
Operating Temperature
................................................ .
Selection
of Relay DC Voltage .......................................... .
Equipment Mounting
.................................................. .
Rack Mounting the Eaton 2075
.......................................... .
Equipment Interconnections
............................................ .
Reference Card
...................................................... .
Pre-Operational Adjustments
........................................... .
SECTION 3- OPERATION
Introduction
......................................................... .
Capabilities
of the Eaton 2075 .......................................... .
Controls and Indicators
................................................ .
Power-On Conditions, Preset, and Total System Reset
....................... .
Continuous Measurement Mode and the Hold Function
...................... .
Fixed Frequency Operation
............................................. .
Swept Frequency Operation
............................................ .
Uncorrected and Corrected Measurements
................................ .
Entry
of Frequency and ENR Values ..................................... .
Selecting the
Correct Test Configuration .................................. .
Procedure for Test Configuration 1
...................................... .
Procedure for Test Configuration 2- Double Sideband
...................... .
Procedure for Test Configuration 2- Single Sideband
....................... .
Procedure for Test Configuration
3- Single Sideband ....................... .
Procedure for Test Configuration
4- Double Sideband ...................... .
Procedure for Test Configuration
4- Single Sideband ....................... .
Procedure for Test Configuration
5- Single Sideband ....................... .
1-1
1-2
1-2
1-2
1-3
1-3
1-3
1-4
1-7
2-1
2-1
2-1
2-3
2-5
2-3
2-5
2-5
2-7
2-8
2-8
3-1
3-1
3-3
3-16
3-20
3-21
3-22
3-24
3-26
3-27
3-31
3-33
3-37
3-41
3-45
3-49
3-53

TABLE OF CONTENTS EATON 2075
ii
Paragraph
3-18
3-19
3-20
3-21
3-22
3-23
3-24
3-25
3-26
3-27
3-28
3-29
3-30
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3-32
3-33
3-34
3-35
3-36
3-37
3-38
3-39
3-40
3-41
3-42
3-43
3-44
3-45
3-46
3-47
3-48
3-49
3-50
3-51
TABLE OF CONTENTS (Continued)
Title
Procedure for Test Configuration
6- Single Sideband ....................... .
Additional Types
of Measurements ....................................... .
Effective Input Noise Temperature (Te) Measurement
....................... .
Y-Factor (Y) Measurement
............................................. .
Operating Noise Temperature (T0p) Measurement
.......................... .
Power (dB) Measurements
............................................. .
ENR Measurement ................................................... .
Noise Measure (M) Measurement
....................................... .
Manual Measurements
................................................. .
Manual Measurement
of Noise Figure and Gain ............................ .
Manual Measurement
of Y-Factor ....................................... .
Calibrated Noise Source
............................................... .
Noise Drive Voltage and Indicator
....................................... .
ENR Tables ......................................................... .
Calibration
.......................................................... .
Frequency Calibration
................................................. .
Second Stage Calibration
.............................................. .
Input Gain Selection
.................................................. .
IF Attenuators Calibration
............................................. .
Selection
of Sideband Parameters ........................................ .
Bandwidth Compensation
.............................................. .
Determining the Bandwidth Ratio
of the First and Second Stages .............. .
Compensation
For Loss or Gain ......................................... .
Tcold Compensation ................................................... .
Oscilloscopes and Recorders to Display Data
.............................. .
Selecting an External Local Oscillator
.................................... .
Controlling External Local Oscillators
.................................... .
Writing a Custom Program
For Controlling a Local Oscillator ................ .
Special Functions
..................................................... .
Error Messages ...................................................... .
Store-Recall Registers
................................................. .
Smoothing Function
................................................... .
100 kHz Display Resolution ............................................ .
Software Revisions
................................................... .
3-57
3-62
3-63
3-63
3-64
3-65
3-66
3-67
3-67
3-67
3-69
3-70
3-71
3-72
3-74
3-74
3-75
3-77
3-78
3-78
3-82
3-84
3-86
3-88
3-89
3-95
3-95
3-96
3-101
3-106
3-110
3-110
3-113
3-113

EATON 2075
Paragraph
4-1
4-2
4-3
4-4
4-5
4-6
4-7
4-8
4-9
4-10
4-11
5-1
5-2
5-3
5-4
5-5
5-6
5-7
5-8
5-9
5-10
TABLE OF CONTENTS
TABLE OF CONTENTS (Continued)
Title
SECTION
4-GPIB OPERATION
Introduction
......................................................... .
GPIB General Information
............................................. .
GPIB Operating Modes
................................................ .
Setting the GPIB Address .............................................. .
GPIB Compatibility
................................................... .
Remote and Local Modes
.............................................. .
GPIB Message Types
................................................. .
Interface Bus Messages
................................................ .
Device Messages
..................................................... .
Data Messages
....................................................... .
Status Messages
...................................................... .
SECTION
5- PERFORMANCE VERIFICATION TESTS
Introduction
......................................................... .
Test Equipment Required
.............................................. .
Performance Verification Procedures
..................................... .
Power-On Test
....................................................... .
Noise Drive Voltage Test
............................................... .
IF Attenuators Calibration
............................................. .
Final Detector Bias Test
............................................... .
Second Stage Calibration
.............................................. .
Final Detector Linearity Test
........................................... .
Scope/Plotter Output Test
.......................... , ................... .
4-1
4-1
4-3
4-3
4-3
4-4
4-4
4-4
4-8
4-12
4-16
5-1
5-1
5-2
5-2
5-2
5-3
5-3
5-4
5-5
5-7
iii

LIST OF ILLUSTRATIONS EATON 2075
iv
1-1
2-1
2-2
2-3
2-4
2-5
3-1
3-2
3-3
3-4
3-5a
3-5b
3-6
3-7a
3-7b
3-8a
3-8b
3-9a
3-9b
3-lOa
3-lOb
3-lla
3-1 lb
3-12a
3-12b
3-13a
3-13b
3-14a
3-14b
3-15a
3-15b
3-16
3-17
3-18
3-19
3-20
3-21
3-22
3-23
3-24
3-25
LIST OF ILLUSTRATIONS
Title
Eaton 2075 Noise Gain Analyzer
........................................ .
AC Voltage Selection Card
............................................. .
Extemal Relay Voltage Selection
........................................ .
Installation
of Rack Mounts ............................................ .
Installation
of Slide Mounts ............................................ .
GPIB Connector
..................................................... .
Front Panel Controls and Indicators
...................................... .
Rear Panel Controls and lndicators
...................................... .
Uncorrected and Corrected Measurements
................................ .
Test Configuration Downconversion Modes
............................... .
Test Configuration
1- Calibration ....................................... .
Test Configuration
1- Extemal Relays for Calibration ....................... .
Test Configuration 1- Extemal Relays for Calibration
....................... .
Test Configuration 2- Calibration-Double Sideband
....................... .
Test Configuration
2- Measurement- Double Sideband ...................... .
Test Configuration 2
-Calibration -Single Sideband ........................ .
Test Configuration 2- Measurement-Single Sideband
...................... .
Test Configuration 3
-Calibration ....................................... .
Test Configuration 3- Measurement
..................................... .
Test Configuration 4 - Calibration-Double Sideband
....................... .
Test Configuration
4- Measurement-Double Sideband ...................... .
Test Configuration
4- Calibration-Single Sideband ........................ .
Test Configuration 4 -
Measurement- Single Sideband ...................... .
Test Configuration 5
-Calibration ....................................... .
Test Configuration 5- Measurement
..................................... .
Test Configuration
6- Calibration ....................................... .
Test Configuration
6- Measurement ..................................... .
T0P
Setup-Calibration ................................................ .
T
~P Setup- Measurement .............................................. .
ENR Setup-Calibration ............................................... .
ENR Setup-Measurement ............................................. .
Manual Y-Factor Measurement
.......................................... .
Example
of Calibrated Noise Source Data ................................. .
ENR Table 1, 2, or 3 .................................................. .
Setup With Extemal Relays for Calibration
................................ .
Example 1 Sideband Selection
.......................................... .
Example 2 Sideband Selection
.......................................... .
Example 3 Sideband Selection
.......................................... .
Example 4 Sideband Selection
.......................................... .
Bandwidth Compensation Example 1
..................................... .
Bandwidth Compensation Example 2
..................................... .
1-1
2-2
2-4
2-5
2-6
2-8
3-4
3-15
3-25
3-30
3-31
3-31
3-31
3-34
3-34
3-38
3-38
3-42
3-42
3-46
4-36
3-50
3-50
3-54
3-54
3-58
3-59
3-64
3-64
3-66
3-66
3-69
3-71
3-73
3-76
3-79
3-80
3-81
3-81
3-82
3-83

EATON 2075
3-26
3-27
3-28
3-29
3-30
3-31
3-32
4-1
4-2
4-3
4-4
4-5
4-6
4-7
4-8
4-9
4-10
5-1
LIST OF ILLUSTRATIONS
LIST OF ILLUSTRATIONS (Continued)
Title
Insertion Loss Measurement With Power Meter
............................ .
Insertion Loss Measurement With 2075
................................... .
Loss Compensation
................................................... .
Error Caused by Tcold Deviation From 290 K .............................. .
Test Pattern 2 Oscilloscope Display
...................................... .
Noise Figure and Gain Oscilloscope Display ............................... .
Smoothing Indicator
.................................................. .
General Purpose Interface Bus
.......................................... .
Sample Data Output
.................................................. .
Status Byte
.......................................................... .
Flowchart For Data Collection in Test Configuration 1 Using SRQ Data Ready
.. .
Programming Example For Data Collection in Test Configuration 1 Using SRQ
On Data Ready With HP 85 Controller
................................... .
Sample Results
From Program of Figure 4-5 .............................. .
Setup in Test Configuration 2
........................................... .
Flowchart For SRQ on Ready
To Tune ................................... .
Flowchart For SRQ on Data Ready
...................................... .
Sample Program
..................................................... .
Output Test Pattern 2
.................................................. .
3-84
3-85
3-87
3-89
3-91
3-92
3-111
4-2
4-14
4-17
4-18
4-19
4-21
4-21
4-23
4-26
4-28
5-8
V

LIST OF TABLES EATON
2075
vi
Table
1-1
1-2
1-3
1-4
2-1
3-1
3-2
3-3
3-4
3-5
3-6
3-7
3-8
3-9
3-10
4-1
4-2
4-3
4-4
4-5
LIST OF TABLES
Title
Equipment Supplied
................................................... .
Optional Accessories
.................................................. .
Performance Specifications
............................................. .
Supplemental Specifications
............................................ .
GPIB Connector Pin-out
............................................... .
Front Panel Controls and Indicators
...................................... .
Rear Panel Controls and Indicators
...................................... .
Power-On, Preset, and Total System Reset Parameters
....................... .
Selecting the
Correct Test Configuration .................................. .
Additional Types
of Measurements ....................................... .
Output Display Special Functions
........................................ .
Control Programs For Externat Local Oscillators
........................... .
ASCII Codes
........................................................ .
Special Functions
..................................................... .
Error Messages ...................................................... .
GPIB Functional Capabilities
........................................... .
GPIB Function Reference Table
......................................... .
Eaton 2075 GPIB Device Codes
......................................... .
Eaton 2075 GPIB Front Panel Codes
..................................... .
Selection
of Data Message Contents ...................................... .
1-3
1-3
1-4
1-6
2-8
3-5
3-15
3-18
3-29
3-62
3-90
3-95
3-99
3-102
3-107
4-4
4-6
4-9
4-11
4-12

EATON 2075 GENERAL INFORMATION
SECTION 1
GENERAL INFORMATION
1-1. SCOPE AND ORGANIZATION OF THE
MANUAL
This manual contains information and procedures
required to install and operate the Eaton 2075-2A
Noise-Gain Analyzer. The rnanual is divided into five
sections
as follows:
Section
1: General Description
Section
2: Unpacking and Installation
Section
3: Operation In Local Mode
Section 4: GPIB Operation
Section
5: Performance Verification Procedures
NOTE
Eaton 2075 is the generic rnodel
designation for the Noise-Gain Ana-
lyzer. lt
was first released as the Eaton
2075-2; the most recent version is the
Eaton 2075-2A. Both versions are
identical in form, fit and function except
that in the Eaton 2075-2A the basic input
frequency range has been extended. The
Eaton 2075-2 has an input frequency
range
of 10 MHz to 1800 MHz. The
basic input frequency range
of the Eaton
2075-2A
is 10 MHz to 1850 MHz, per its
specifications. However the unit is
tunable to, and can actually be operated
at, up to
1900 MHz. The actual rnodel
nurnber
is located on the identification
label on the rear panel. The instrurnent is
hereinafter referred to as the Eaton
2075.
- 7 8 9
• 4 5 6
0 1 2 3
Figure 1-1. EATON 2075 NOISE-GAIN ANALYZER
1-1

GENERAL INFORMATION
This manual has been organized to allow the new user
of the Eaton 2075 to quickly and easily begin test
operations. Read Section 1
to obtain a familiarity with
the test instrument. Follow the procedures of Section 2
for installation.
The Eaton 2075 can be used in any of 6 test
configurations, depending on the desired test
application. Section 3 is organized to quickly bring the
user to the correct test configuration and its
procedure. Figure
3-1 and Table 3-1 may be studied to
obtain a familiarity with the controls and indicators.
Paragraph 3-10 and Table 3-4 guide the user in
selecting the correct test configuration. Paragraphs 3-
11 through 3-18 are the procedures to be used with
each configuration. Each procedure includes the
keystroke sequences necessary for each step. The
remaining pages of Section 3 cover, in greater detail,
specific subjects relevant to operation
of the 2075.
Section 4 covers operation when the 2075
is controlled
by an
external computer via a General Purpose
Interface Bus.
Section 5 includes information and procedures used
to
verify that the 2075 is performing correctly.
1-2. INTRODUCTION
This section of the manual contains a general
description of the Eaton 2075 Noise-Gain Analyzer
including: purpose and function, equipment
requirements, available options, specifications, and
safety precautions.
1-3. PURPOSE AND USE OF EQUIPMENT
The 2075 Noise-Gain Analyzer is a programmable,
microprocessor-controlled instrument designed
specifically to make precise measurements of noise
and gain characteristics
of RF devices. The analyzer
can be controlled
in its local mode using its front panel
controls, or in the remote mode, by an external
controller via
an IEEE-488 GPIB (General Purpose
Interface Bus).
1-2
EATON 2075
The analyzer can make the following measurements:
Corrected Noise Figure and Gain
Uncorrected Noise Figure
Corrected Effective Input Noise
Temperature and Gain
Effective Input Noise Temperature
Corrected Effective Operating Noise
Temperature and Gain
(F + G)*
(F)*
(T
0P + G)
Effective Operating Noise Temperature (Top)
Noise Measure (includes Gain) (M)*
Y Factor
Power
Excess Noise Ratio
(Y)*
(PWR dB)*
(ENR)*
*Can be displayed
in dB or as a dimensionless ratio
The specified input frequency range
of the 2075
extends from
10 MHz to 1850 MHz. However, the unit
is actually tunable and operable to 1900 MHz. In its
simplest test configuration the analyzer will make
measurements of RF devices with output frequencies
in this range. More complex test configurations,
requiring one or two stages
of external downconver-
sion, allow measurements
of devices with output
frequencies
as high as 65.535 GHz. The 2075 has the
capability for controlling the local oscillator used
in
the external downconversion process.
1-4. CALIBRATION CYCLE
At six month intervals the Performance Verification
Procedures in Section 5
of this manual should be
performed to ensure the continued optimum
performance of the 2075.
At one year intervals the instrument should be fully
calibrated using the alignment and adjustment
procedures from the maintenance manual. These
procedures should be performed by qualified
personnel experienced in calibration and servicing of
electronic instrumentation.

EATON 2075
1-5. EQUIPMENT SUPPLIED
The items listed in Table
1-1 are furnished with the
2075 Noise-Gain Analyzer.
Table 1-1. Equipment Supplied
QTY. DESCRIPTION PART NO.
1 AC Power Cord, 1-910166-001
2 meters
1 External Relay Plug 1-910417-101
1 Fuse,
1. 0 Amp, slow- 1-924000-019
blow (for 220V operation)
1 Operation Manual 500783-385
1 Maintenance Manual 500783-386
GENERAL INFORMATION
1-6. EQUIPMENT REQUIRED BUT NOT
SUPPLIED
One or more noise sources are required for operation
of the 2075. The type needed depends on the user
applications. Also, one
or more GPIB cables are
required to operate the 2075
if an external controller is
used, or if the 2075 is used to control an external local
oscillator. Noise sources and GPIB cables are listed
in
Table 1-2 under Optional Accessories.
In addition, filters, mixers, and one or two external
local oscillators
may be required if the Device Under
Test is to be measured at frequencies above 1850
MHz. See Sections
3-10 through 3-18 to determine the
proper setup and equipment requirements.
Test equipment is required for the performance
of the
Performance Verification Procedures. The required
test equipment is listed in Table
5-1 of this manual.
1-3

GENERAL INFORMATION
1-7. OPTIONAL ACCESSORIES
Table 1-2 lists the optional accessories available for
use with the 2075 Noise-Gain Analyzer. For further
inforrnation, please contact an Eaton sales
representative in your area.
EATON 2075
NOTE
Itern 23, the Slide Mount Kit, rnust be
ordered with the original purchase
of the
2075. This option cannot be added later
unless the unit is returned to the factory.
Table 1-2. Optional Accessories
ITEM MODEL ITEM MODEL
NO. DESCRIPTION NO.
NO. DESCRIPTION NO.
1 Solid State Noise Source 7615
13 Gas Discharge Noise 7091
10 MHz-1500 MHz Source 12.4
GHz-18 GHz,
2 Solid State Noise Source
7616
WR62 output
1 GHz-12.4 GHz
14 Gas Discharge Noise 7053
3 Solid State Noise Source
7617
Source 18 GHz-26.5 GHz,
12.4 GHz-18 GHz WR42 output
4 Solid State Noise Source
7618
15 Gas Discharge Noise 7096
1
GHz-18 GHz Source 26.5 GHz-40 GHz,
5 Solid State Noise Source 7618E WR28 output
10 MHz-18 GHz
16
Hot/Cold Noise Standard 7009
6 Solid State Noise Source 7626 DC-9 GHz
10 MHz-26.5 GHz
17
GPIB Cable, 1 Meter 1-998094-
7 Solid State Noise Source 230450-2
001
with isolator, 1.2 GHz-1.4 Length (IEEE-488)
GHz
18
GPIB Cable, 2 Meter 1-998094-
8 Solid State Noise Source 230450 002
with isolator, 2.7 GHz-2.9 Length (IEEE-488)
GHz
19 GPIB Cable, 4 Meter 1-998094-
9 System Noise Source (High 7650 003
ENR)
10 MHz-18 GHz Length (IEEE-488)
(Custom Specifications) 20 Maintenance Kit for Eaton 1-006586-
10
System Noise Source (High 7660
001
ENR) 10 MHz-18 GHz 2075 (Extender Boards and
(Custorn Specifications) Cables)
11
Triggerable Power Supply
7175
21
Anti-Static Workstation 1-998484-
for Gas Discharge Noise
001
Sources
22
Rack Mount Kit Option 11
12
Gas Discharge Noise 7052 23 Slide Mount Kit (see note 1-998725
Source 8.2 GHz-12.4 GHz, above) (Option
11 also
WR90 output required)
24 PROM ENR Table Ordered
as
(permanent storage of
option with
ENR data for noise source) noise source
1-4

EATON 2075
1-8. SPECIFICATIONS
Specifications for the 2075 are listed in Tables 1-3 and
1-4.
Table 1-3 lists the basic specifications.
Supplemental information consisting of non-
warranted, nominal performance characteristics is
listed in Table 1-4.
GENERAL INFORMATION
Table 1-3. Eaton 2075 Performance Specifications
PERFORMANCE
LIMIT CONDITIONS
CHARACTERISTIC
NOISE FIGURE MEASUREMENT:
Range 0 to 30
dB
Resolution 0.01
dB
Uncertainty
±0.05 dB
1) Noise Figure 0 to 12 dB
2) Temperature + 10 to +40 ° C
3) ENR of 5 to
18 dB
±0.10 dB
1) Noise Figure > 12 dB
2) Temperature < 10 ° C
>40 ° c
GAIN MEASUREMENT:
Range
-20 dB to +50 dB
Resolution 0.01
dB
Uncertainty
±0.2
dB
INPUT:
Frequency Range Specified parameters apply
from
10 MHz to 1850 MHz.
Unit is tunable and operable up
to 1900 MHz
1-5

GENERAL INFORMATION EATON 2075
Table 1-3. Eaton 2075 Performance Specifications (Continued)
PERFORMANCE LIMIT CONDITIONS
CHARACTERISTIC
Frequency Resolution 1 MHz (test configurations
1 -
6)
0.1 MHz (test configuration
1 only)
Tuning Accuracy ±(0.5 MHz + 0.005 times the
tuned frequency
±3 MHz maximum
Second Stage
Noise Figure 7 dB
+. 001 dB/MHz For input power levels below -40 dBm
Input SWR <
1.5:1
Reflection Coefficient
<0.2
Allowable Net
External Gain
>75 dB
ELECTROMAGNETIC COMPATIBILITY:
Conducted and Radiated MIL STD 461A, CISPR Publi- Conducted and radiated interference
Emissions cation
11, and Messempfaenger- complies with MIL STD 461A, Methods
Postverfuegung 526/527179 CE03 and RE02, CISPR Publication
11
(1975), and Messempfaenger Postver-
fuegung 526/527/79 (Kennzeichnung
Mit F-Nummer/Funkschutzzeichen)
Conducted and Radiated MIL STD 461A
1968
Conducted and radiated susceptibility
Susceptibility meets the requirements
of methods
CSOl, CS02, CS06, and RS03
(1 Volt/
meter)
of MIL STD 461A 1968
GENERAL:
Noise Source Drive Voltage 28.0 volts + .05 V Noise Source ON at
up to 100 mA peak
1.0 volt Noise Source OFF
Line Voltage
100 VAC ± 10%
48 to 66 Hz
110 VAC ± 10%
48 to 66 Hz
220
VAC ± 10%
48 to 66 Hz
240
VAC ± 10%
48 to 66 Hz
Power Dissipation 200
VA maximum
Operating Temperature 0 to
55 ° C
Storage Temperature
-55 to +75 ° C
Height
146 mm (5.75 in.) 51 A in. vertical rack space
Width 425 mm (16.8 in.)
Depth 354 mm (14.0 in.)
Weight
11.5 kg (25.5 lbs.)
1-6

EATON 2075 GENERAL INFORMATION
Table 1-4. Supplemental Specifications
CHARACTERISTIC NOMINAL
OR TYPICAL VALUE
Bandwidth
5.0 MHz Noise Bandwidth
Maximum Safe Input Level
+20 dBm RF or ±20 VDC
External Relays Drive Voltages and
Currents
+5 VDC, 5 VA maximum
+
15 VDC, 4.5 VA maximum
+30 VDC, 15 VA maximum
Controller Functions HP 8672A, HP 8350A, Wiltron 6600 Series Sweep Generators,
General Format
ENR Tables Storage Capacity 3 Tables, each can store up to
31 frequencies with corresponding
ENR values, plus 1 PROM table can store l ENR value for all
frequencies (4 tables total). An additional, optional PROM table
can be ordered with the noise source.
Frequency Display Displays Frequency in MHz, 4 GPIB annunciators are:
SRQ Service Request
RMT Remote
TALK Talk
LISTEN Listen
4 Parameter Annunciators are:
LO Local Oscillator
RF Radio Frequency
IF Intermediate Frequency
ENTER Enter Frequency Prompt
Gain Display Displays Gain and other values. The 8 Annunciators are:
LOSS Gain
is less than zero dB
ENR Excess Noise Ratio
T (F) Temperature in Fahrenheit
T (C) Temperature
in Centigrade
T (K) Temperature
in kelvins
ENTER Enter Value Prompt
dB
Units are .displayed in dB
RATIO Units are displayed as Ratio
Noise Figure Display Displays Noise Figure and other values. The 8 Annunciators are:
F Noise Figure
y Y-Factor
Te(K) Effective Input Noise Temperature
in kelvins
dBPWR
Power and ENR
M Noise Measure
Top
Operating Noise Temperature
dB
Units displayed are in dB
RATIO Units displayed as Ratio
Analog Gain Meter Analog Indicator for Gain. Variable range
is set by entering upper
and lower limits.
1-7

GENERAL INFORMATION
EATON 2075
Table 1-4. Supplemental Specifications (Continu.ed)
CHARACTERISTIC NOMINAL
OR TYPICAL VALUE
Analog Noise Meter Analog Indicator for Noise Figure. Variable range is set by
entering upper and lower limits.
Scope/Plotter Output Rear panel connectors supply drive signals for external .
Connectors X,
Y, Z oscilloscope
or X-Y plotter. Variable range is set by entermg upper
and lower limits. Output voltage range is 0 to 6 volts for X and Y.
zaxis output is positive going TTL, 0 to 5 volts signal for
blanking the oscilloscope.
IF Output -25 dBm to -55 dBm, 5 MHz Bandwidth
DET Output .2 volts to approx. + 5 volts, high impedance output
1-9. SAFETY PRECAUTIONS
1 WARNING 1 . l d .
Th1s
symbo es1gnates precau-
tionary actions which must be followed to avoid the
possibility
of injury and death.
1-8
1 WARNING 1
1. If this instrument is to be energized
via an auto-transformer for voltage
reduction, make sure that the
common terminal is connected to
the earth pole
of the power source.
2.
The power cable plug shall be
inserted into a socket outlet
provided with a protective earth
contact. The protective action must
not be
negated by the use of an
extension cord without a protective
conductor (ground).
3.
Before switching on the instru-
ment, the protective earth terminal
of the instrument must be
connected to the protective
conductor of the power cord. This
is accomplished
by ensuring that
the instrument's internal earth
terminal is correctly connected to
the instrument's chassis and that the
power cord
is wired correctly.
4.
Whenever it is likely that the
protection has been impaired, the
instrument must be made
inoperable and secured against any
unintended operation.
5. Any interruption
of the protective
ground conductor inside
or outside
the instrument,
or disconnection of
the protective earth terminal is
likely to make the instrument
dangerous. Intentional interruption
is prohibited.
6. Make sure that only fuses with the
required rated voltage and current,
and
of the specified type (normal-
blow, slow-blow) are used for
replacement. The use of repaired
fuses
and the shortcircuiting of
fuseholders must be avoided.
Remove the line cord before
changing fuses.
7. Any adjustment, maintenance, and
repair of the opened instrument
under voltage should be avoided as
much as possible and, where
inevitable, should be carried out
only by a
skilled person who is
aware
of the hazard involved.

EATON 2075
8. Exercise extreme care when
servicing the unit. High voltages
are used.
9. Capacitors inside the instrument
may still be charged even
if the
instrument has been disconnected
from its source.
+++++++++++
! CAUTION !
••••••••••• This symbol designates precau-
tionary actions which must be followed to avoid
damage to all or part
of the instrument.
+++++++++++
! CAUTION !
+++++++++++
1. Verify that the line voltage selector
card on the
rear panel is in the
correct position before connecting
the power.
2. Verify that the socket for the power
line cord is provided with a pro-
tective earth contact.
GENERAL INFORMATION
3. Any interruption of the protective
(grounding) conductor inside
or
outside the instrument is likely to
cause damage to the instrument. To
avoid damage, this instrument and
all line powered devices connected
to it must be connected to the same
earth ground.
4. Make sure that only fuses with the
required rating, and of the
specified type, are used for
replacement. Fuse ratings are
given on the rear panel of the
instrument near the fuseholder.
5.
To avoid the possibility of damage
to test equipment, read completely
through each section before
starting it. Make any preliminary
control settings necessary for
correct test equipment operation.
6. Do not torque the RF connector
to
more than 2 V2 inch-pounds.
1-9

EATON 2075 INSTALLATION
SECTION 2
INSTALLATION
2-1. INTRODUCTION
This section of the manual contains information
required for unpacking, inspecting, and installing the
Eaton 2075 Noise-Gain Analyzer.
2-2. UNPACKING AND PHYSICAL
INSPECTION
Examine the shipping carton for damage before
unpacking the equipment. If the carton has been
damaged, have the carrier's agent present when the
equipment is removed from the carton. Retain the
shipping carton and padding material for the carrier's
inspection
if damage to the equipment is evident after
it has been unpacked.
•••••••••••
! CAUTION !
•••••••••••
Exercise care when removing the
instrument from its shipping container to
ensure that
no damage is incurred at this
time.
See that the equipment is complete as listed on the
packing slip. Visually examine the 2075 for any
evidence of physical damage. If any damage is
evident, or if the contents are not complete,
immediately notify the carrier and also your local
Eaton sales office. After completing the physical
inspection, the Performance Verification Procedures
in Section 5 of this manual should be performed as an
operational or electrical inspection.
2-3. AC POWER REQUIREMENTS
Prior to shipping, the 2075 is configured to operate on
120
VAC, 60 Hz line power. The unit is easily re-
configured for operation using
100, 220, or 240 VAC.
Refer to Figure 2-1 below and perform the following
steps to verify, or to change, the line voltage
configuration:
WARNING 1
Observe all the safety precautions listed
in
paragraph 1-9. In particular,
determine that the line voltage selector
card is set to its correct position.
If it is
necessary to change the card setting, use
the following procedure.
NOTE
For units with serial numbers 286 and
up,
it makes no difference whether the
unit
is configured for 100 or 120 VAC.
Likewise, it makes no difference
whether the unit is configured for 220 or
240 VAC.
2-1

INSTALLATION EATON
2075
Figure 2-1. AC VOLTAGE SELECTION CARD
1. On the rear of the unit, locate the receptacle for hole is provided in the card to accommodate a
the line power cord. The power cord should be hook for easy removal.
unplugged from the receptacle.
6. Rotate the card so that the desired operating
2. Slide the transparent fuse cover
to the left, and voltage is visible on its upper surface. Now
pull the FUSE PULL lever to remove the fuse. position the card for reinsertion with the desired
voltage on the outboard edge.
3. Read the voltage level printed on the voltage
selector card. (This number becomes visible
7.
Reinsert the card. The desired voltage should be
after the fuse is removed.) visible.
4. The unit is normally configured for
120 VAC
8.
Replace the fuse after verifying that its rating is
operation. If the unit is to be operated using this correct. For
100 or 120 VAC, use the 2.0 Amp
line voltage, verify that this value is visible. slow-blow fuse. For 220 or 240
VAC, use the 1.0
Verify that the fuse rating is 2.0 Amps, slow- Amp slow-blow fuse.
blow, and reinsert the fuse.
9.
Slide the transparent fuse cover back into place.
5. To reconfigure for operation at 100, 220, or 240
VAC, remove the voltage selector card. A small
10. Plug the power cord into the receptacle.
2-2