Eaton 2075 User manual

OPERATION MANUAL
Manual No. 1-500783-385
EATON 2075
NOISE-GAINANALYZER
- -
1.
. E:T*N 2075 NOISE-GAIN ANALY7FR
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REVISED DECEMBER 1985
Eaton Corporation
Electronic InstrumentationDivision
Los Angeles, California 90066

WARRANTY
Eaton Corporation, Electronic Instrumentation Division, (SELLER)warrants each new
instrumentto
be freefromdefectsinmaterialandworkmanship,effectiveafterdeliveryto
the original purchaser as follows:
Electrical and Electronic Measuring Instruments
. . . . . . 1 Year
Repairorreplacement(atouroption)withoutcharge(F.0.B. factory)willbeeffectedwhen
ourexaminationsatisfactorily indicatesthatdefectsareduetoworkmanshipormaterials.
Electron tubes, semiconductors, batteries, fuses, lamps, thermoelements, and Ratio
Tranpotentiometersareexcludedfromwarrantycoverage.Warrantyreturnsmustfirstbe
authorized by thefactory.
Iftheinstrumentoranyportionthereof, hasbeenabused,misused,damagedbyaccidentor
negligence, or if anyserial number or seal has been removedor altered, the warranty is
void.
This warranty is in lieu of all other warranties, express or implied INCLUDING THE
IMPLIEDWARRANTY OF MERCHANTABILITY,orfitness for aparticular purpose.Inno
eventshalltheSELLER beliablefor INCIDENTALOR CONSEQUENTIALdamages.The
SELLERneitherassumes,norauthorizesanypersontoassumeforit,anyotherliabilityin
connectionwith sales of instruments manufacturedbySELLER.
With respect to repairs, the foregoing warranty shall apply for a period of ninety days to
the repaired portion.
REPAIR AND MAINTENANCE
lnstruments should be returnedonly on priorauthorization from the Representativeor
thefactory. You will beadvisedof detailed shipping instructionsat that time. Returnthe
instrument tothe factory prepaid. Validity of warranty will be determined by the factory.
Chargeable repairs: If requested, an estimate of chargeswill be made prior to repairs.
Pleaseprovide us with the following information inorder to expeditethe processingof
your instrument:
1.
MO&I or Type
5. Approximate numberof
2. Serial Number hours in use.
3. Descriptionof trouble
(') 6. Maintenanceaction previously
4. Approximate date instrument requested or performed
was placedinoperation. 7. Other comments.
(I' Include data on symptoms. measurements taken. suspected location of trouble. maintenanceaction taken and any other
relevant data.
SERVICE
Additionalserviceinformationcanbemadeavailable bycallinganyof these Eaton
Sales
and Service Centers:
Elmhurst, IL
- [phone]
Fairfield, NJ
- (201 ) 227-8990
LosAngeles, CA
- [phone]
Oakton, VA - [phone]
Sunnyvale, CA
- [phone]
FRANCE
a Argenteuil Telephone: [phone] Telex: 609036
UNITED KINGDOM Wokingham Telephone: [phone] Telex: 847238
GERMANY Munich
a Telephone: [phone] Telex: 529420

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

TABLE OF CONTENTS EATON 2075
Paragraph
.....
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 (Top)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
ENRTables ..........................................................
Calibration ...........................................................
Frequencycalibration ..................................................
...............................................
Second Stage Calibration
Input Gain Selection
...................................................
..............................................
IF Attenuators Calibration
.........................................
Selectionof Sideband Parameters
...............................................
Bandwidth Compensation
Determining the Bandwidth Ratio of the First and Second Stages
...............
Compensation For Loss or Gain ..........................................
TcoldCompensation ....................................................
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-RecallRegisters
Smoothing Function
....................................................
.............................................
100 kHz Display Resolution
Software Revisions
....................................................
Page
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EATON 2075 TABLE OF CONTENTS
TABLE OF CONTENTS (Continued)
Paragraph Title
SECTION
4 . GPIB OPERATION
..........................................................
Introduction
GPIB General Information
..............................................
GPIBOperating Modes .................................................
SettingtheGPIB Address ...............................................
....................................................
GPIB Compatibility
Remoteandbcal Modes ...............................................
GPIBMessageTypes ..................................................
.................................................
Interface Bus Messages
......................................................
DeviceMessages
........................................................
DataMessages
.......................................................
Status Messages
SECTION
5 -PERFORMANCE VERIFICATION TESTS
..........................................................
Introduction
...............................................
Test Equipment Required
Performance Verification Procedures
......................................
........................................................
Power-OnTest
Noise Drive Voltage Test
................................................
IF Attenuators Calibration ..............................................
Final Detector Bias Test ................................................
Second StageCalibration ...............................................
Final Detector Linearity Test ............................................
...............................................
ScopeIPlotterOutput Test
Page
.
iii
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LIST OF ILLUSTRATIONS EATON 2075
LlST OF ILLUSTRATIONS
Figure Title
Page
Eaton 2075 Noise Gain Analyzer .........................................
1-1
..............................................
AC Voltage Selection Card 2-2
.........................................
External Relay Voltage Selection 2-4
.............................................
Installation of Rack Mounts 2-5
.............................................
Installation of Slide Mounts 2-6
......................................................
GPlB Connector 2-8
.......................................
Front Panel Controls and Indicators
3-4
.......................................
Rear Panel Controls and Indicators
3-15
.................................
Uncorrected and Corrected Measurements 3-25
................................
Test Configuration Downconversion Modes 3-30
........................................
Test Configuration 1 -Calibration 3-31
........................
Test Configuration 1 -External Relays for Calibration 3-31
........................
Test Configuration 1 -External Relays for Calibration 3-31
........................
Test Configuration 2 -Calibration - Double Sideband 3-34
.......................
.
Test Configuration 2 -Measurement Double Sideband 3-34
.........................
. Test Configuration 2 -Calibration Single Sideband 3-38
.......................
.
Test Configuration 2 -Measurement Single Sideband 3-38
........................................
Test Configuration 3 -Calibration 3-42
......................................
Test Configuration 3 -Measurement 3-42
........................
.
Test Configuration 4 -Calibration Double Sideband 3-46
.......................
. .
Test Configuration 4 Measurement Double Sideband 4-36
.........................
.
Test Configuration 4 -Calibration Single Sideband 3-50
.......................
.
Test Configuration 4 -Measurement Single Sideband 3-50
........................................
Test Configuration 5 -Calibration 3-54
......................................
Test Configuration 5-Measurement 3-54
........................................
Test Configuration 6 -Calibration 3-58
......................................
Test Configuration 6 -Measurement 3-59
..................................................
Topsetup -- hilibration 3-64
...............................................
.
To Setup Measurement 3-64
................................................
E~R Setup-Calibration 3-66
..............................................
.
ENR Setup Measurement 3-66
...........................................
Manual Y-Factor Measurement 3-69
..................................
Example of Calibrated Noise Source Data
3-71
...................................................
ENR Table 1, 2, or 3
3-73
.................................
Setup With External Relays for Calibration
3-76
...........................................
Example 1 Sideband Selection 3-79
...........................................
Example 2 Sideband Selection 3-80
...........................................
Example 3 Sideband Selection 3-81
...........................................
Example 4 Sideband Selection 3-81
......................................
Bandwidth Compensation Example 1 3-82
......................................
Bandwidth Compensation Example 2 3-83
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EATON 2075 LIST OF ILLUSTRATIONS
Figure
.....
LlST OF ILLUSTRATIONS (Continued)
Title
Insertion Loss Measurement With Power Meter
.............................
....................................
Insertion Loss Measurement With 2075
....................................................
Loss Compensation
Error Caused by TcoldDeviation From 290
K ...............................
.......................................
Test Pattern 2 Oscilloscope Display
................................
Noise Figure and Gain Oscilloscope Display
Smoothing Indicator
...................................................
General Purpose Interface Bus ...........................................
Sample Data Output ...................................................
StatusByte ...........................................................
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 ...................................................
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LlST OF TABLES EATON 2075
Table
LlST OF TABLES
Title Page
.
Equipment Supplied .................................................... 1-3
Optional Accessories ................................................... 1-3
Performance Specifications
.............................................. 1-4
............................................. Supplemental Specifications 1-6
GPIB Connector Pin-out
................................................ 2-8
Front Panel Controls and Indicators .......................................
Rear Panel Controls and Indicators .......................................
Power.On, Preset. and Total System Reset Parameters ........................
Selectingthe Correct Test Configuration ...................................
Additional Types of Measurements ........................................
Output Display Special Functions .........................................
Control Programs For External Local Oscillators ............................
ASCIICodes .........................................................
Special Functions ......................................................
ErrorMessages .......................................................
GPIB Functional Capabilities ............................................ 4-4
GPIB Function Reference Table
.......................................... 4-6
Eaton 2075 GPIB Device Codes .......................................... 4-9
Eaton 2075 GPIB Front Panel Codes ...................................... 4-11
Selection of Data Message Contents
....................................... 4-12
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EATON 2075 GENERAL INFORMATION
SECTION I
GENERAL INFORMATION
1-1. SCOPE AND ORGANIZATIONOF THE
MANUAL
This nianual contains information and procedures
required to install and operate the Eaton 2075-2A
Noise-Gain Analyzer. The manual is divided into five
sections as follows:
Section
1: General Description
Section 2: Unpacking and Installation
Section
3: Operation In Local Mode
Section
4: GPlB Operation
Section 5: Performance Verification Procedures
NOTE
Eaton 2075 is the generic model
designation for the Noise-Gain Ana-
lyzer. It 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 model
number is located on the identification
label on the rear panel. The instrument is
hereinafter referred to as the Eaton
2075.
Figure 1-1. EATON 2075 NOISE-GAIN ANALYZER
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GENERAL INFORMATION EATON
2075
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 proceduresof 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.
Section4 coversoperationwhen 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).
The analyzer can make the following measurenlents:
e
Corrected Noise Figure and Gain
(F + G)*
Uncorrected Noise Figure (F) *
Corrected Effective Input Noise
Temperature and Gain (T,
+ G)
Effective Input Noise Temperature (T,)
Corrected Effective Operating Noise
Temperature and Gain (Top
+ G)
Effective Operating Noise Temperature (Top)
Noise Measure (includes Gain) (M)*
Y Factor
Power
(Y)*
(PWR dB)*
Excess Noise Ratio (ENR)*
*Can be displayed in dB or as a dimensionless ratio
The specified input frequency range of the 2075
extendsfrom 10 MHz to 1850MHz. 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
frequenciesas high as 65.535 GHz. The 2075 has the
capability for controlling the local oscillator used in
the external downconversion process.
1-4. CALIBRATIONCYCLE
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.
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EATON 2075 GENERAL INFORMATION
QTY. DESCRIPTION PART NO.
I AC Power Cord, 1-910166-001
2 meters
I External Relay Plug 1-910417-101
1 Fuse, 1.0Amp, slow- 1-924000-0 1 9
blow (for 220V operation)
I Operation Manual 500783-385
1 Maintenance Manual 500783-386
1-5. EQUIPMENT SUPPLIED 1-6. EQUIPMENT REQUIRED BUT NOT
SUPPLIED
Thc items listed in Table 1-1 are furnished with the
2075 Noise-Gain Analyzer. One or more noise sources are required for operation
of the 2075. The type needed depends on the user
Table 1-1. Equipment Supplied applications. Also, one or more GPIB cables are
required tooperatethe 2075
if an externalcontroller is
used, or if the 2075 is used to control an external local
oscillator. Noise sourcesand 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 ~f this manual.
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GENERALINFORMATION EATON 2075
1-7. OPTIONAL ACCESSORIES NOTE
Table 1-2 lists the optional accessories available for Iten1 23, the Slide Mount Kit. must be
use with the 2075 Noise-Gain Analyzer. For further ordered with the original purchase of the
information, please contact an Eaton sales 2075. This option cannot be added later
representative in your area. unless the unit is returned to the factory.
Tabte 1-2. Optional Accessories
ITEM MODEL
NO. DESCRIPTION NO.
1 Solid State Noise Source 7615
10 MHz-1500 MHz
2 Solid State Noise Source 7616
1 GHz-12.4 GHz
3 Solid State Noise Source 7617
12.4 GHz-18 GHz
4 Solid State Noise Source 7618
1GHz-18 GHz
5 Solid State Noise Source 7618E
10 MHz-18 GHz
6 Solid State Noise Source 7626
10 MHz-26.5 GHz
7 Solid State Noise Source 230450-2
with isolator, 1.2 GHz-1.4
GHz
8 Solid State Noise Source 230450
with isolator, 2.7 GHz-2.9
GHz
9 System Noise Source (High 7650
ENR) 10 MHz-I8 GHz
(Custom Specifications)
10 System Noise Sobrce (High 7660
ENR) 10 MHz-18 GHz
(Custom Specifications)
11 Triggerable Power Supply 7175
for Gas Discharge Noise
Sources
12 Gas Discharge Noise 7052
Source 8.2 GHz-12.4 GHz,
WR90 output
13 Gas Discharge Noise 709
1
Source 12.4GHz-18 GHz,
WR62 output
ITEM MODEL
NO. DESCRIPTION NO.
14 Gas Discharge Noise 7053
Source 18 GHz-26.5 GHz,
WR42 output
15 Gas Discharge Noise 7096
Source 26.5 GHz-40 GHz,
WR28 output
16 HotICold Noise Standard 7009
DC-9 GHz
17 GPIB Cable, 1 Meter 1-998094-
001
Length (IEEE-488)
18 GPIB Cable,
2 Meter 1-998094-
002
Length (IEEE-488)
19 GPIB Cable, 4 Meter 1-998094-
003
Length (IEEE-488)
20 Maintenance Kit for Eaton 1-006586-
001
2075 (Extender Boards and
Cables)
2 1 Anti-Static Workstation 1-998484-
001
22 Rack Mount Kit Option
11
23 Slide Mount Kit (see note 1-998725
above) (Option
11 also
required)
24 PROM ENR Table Ordered as
(permanent storage of option with
ENR data for noise source) noise source
25 RF connector on rear panel Option 17
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EATON 2075 GENERAL INFORMATION
c
1-8. SPECIFICATIONS
..%
Specifications for the 2075 are listed in Tables 1-3and
1-4. Table 1-3 lists the basic specifications.
Supplemental information consisting of non-
warranted, nominal performance characteristics is
listed in Table
1-4.
Table 1-3.
Eaton 2075 Performance Specifications
PERFORMANCE LIMIT CONDITIONS
CHARACTERISTIC
NOISE FIGURE MEASUREMENT:
Range
Resolution
Uncertainty
0 to 30 dB
0.01 dB
+ 0.05 dB
& 0.10 dB
1) Noise Figure 0 to 12 dB
2) Temperature
+ 10 to +40 " C
3) ENR of 5 to 18 dB
1) Noise Figure > 12 dB
2) Temperature
< 10 " C
>40° C
GAIN MEASUREMENT:
Range
Resolution
Uncertainty
-20 dB to
+ 50 dB
0.01
dB
k0.2 dB
INPUT
Frequency Range a
Specified parameters apply
from 10
MHz to 1850 MHz.
Unit is tunable and operable up
to 1900
MHz
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GENERAL INFORMATION EATON 2075
--
-
-
Table 1-3.
Eaton 2075 Performance Specifications (Continued)
PERFORMANCE LIMIT CONDI'TIONS
CHARACTERISTIC
Frequency Resolution
Tuning Accuracy
Second Stage
Noise Figure
Input SWR
Reflection Coefficient
Allowable Net
External Gain
1 MHz (test configurations
1 - 6)
0.1 MHz (test configuration
1 only)
* (0.5 MHz + 0.005 times the
tuned frequency
* 3 MHz maximum
7 dB + .001 dB1MHz
< 1.5:l
< 0.2
>75
dB
For input power levels below -40 dBm
ELECTROMAGNETIC COMPATIBILITY:
Conducted and Radiated
Emissions
Conducted and Radiated
Susceptibility
MIL STD461A. CISPR Publi-
cation 11, and Messempfaenger-
Postverfuegung 5261527179
MIL STD 461A 1968
Conducted and radiated interference
complies with
MIL STD461A, Methods
CEO3 and RE02, CISPR Publication 11
(1975), and Messempfaenger Postver-
fuegung 5261527179 (Kennzeichnung
Mit
F-Nummer/Funkschutzzeichen)
Conducted and radiated susceptibility
meets the requirements of methods
CSOI, CS02, CS06, and RS03 (1 Volt1
meter) of MIL STD 461A 1968
GENERAL:
Noise Source Drive Voltage
Line Voltage
Power Dissipation
Operating Temperature
Storage Temperature
Height
Width
Depth
Weight
28.0 volts
+ .05 V
1.0 volt
100 VAC k 10%
110 VAC
& 10 %
220 VAC +_ 10%
240 VAC
& 10 %
200 VA maximum
0 to 55 " C
-55 to
+75 " C
146 mm (5.75 in.)
425 mm (16.8 in.)
354 mm (14.0 in.)
11.5 kg (25.5 Ibs.)
Noise Source ON at up to 100mA peak
Noise Source OFF
48 to 66 Hz
48 to 66 Hz
48 to 66
Hz
48 to 66 Hz
5
'/4 in. vertical rack space
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EATON 2075 GENERAL INFORMATION
f --&
Table 1-4. Supplemental Specifications
CHARACTERISTIC
Bandwidth
Maximum Safe lnput Level
External Relays Drive Voltages and
Currents
Controller Functions
ENR Tables Storage Capacity
Frequency Display
Gain Display
\
Noise Figure Display
Analog Gain Meter
NOMINAL OR TYPICAL VALUE
5.0 MHz Noise Bandwidth
+20 dBm RF or
* 20 VDC
+5 VDC , 5 VA maximum
+ 15 VDC, 4.5 VA maximum
+30 VDC, 15 VA maximum
HP 8672A, HP 8350A, Wiltron 6600 Series Sweep Generators,
General Format
3 Tables, each can store up to 31 frequencieswith corresponding
ENR values, plus
1 PROM table can store I ENR value for all
frequencies(4 tables total). An additional, optional PROM table
can be ordered with the noise source.
Displays Frequency in MHz,
4 GPIB annunciatorsare:
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
Displays Gain and other values. The 8 Annunciators are:
LOSS Gain is less than zero dB
ENR Excess Noise Ratio
T (F) Temperaturein Fahrenheit
T (C) Temperature in Centigrade
T (K) Temperaturein kelvins
ENTER Enter Value Prompt
dB Units are displayed in dB
RATIO Units are displayed as Ratio
Displays Noise Figure and other values. The 8 Annunciators are:
F Noise Figure
Y Y-Factor
T,(K) Effective Input Noise Temperature in kelvins
dB PWR Power and ENR
M Noise Measure
Operating Noise Temperature
dB Units displayed are in dB
RATIO Units displayed as Ratio
Analog Indicator for Gain. Variable range is set by entering upper
and lower limits.
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GENERAL INFORMATION EATON 2075
Table 1-4. Supplemental Specifications (Continued)
[-
1-9. SAFETY PRECAUTIONS
CHARACTERISTIC NOMINAL
OR TYPICAL VALUE
This symbol designates precau-
tionary actions which must be followed to avoid the
possibility of injury and death.
Analog Noise Meter
ScopeIPlotter Output
Connectors
X, Y, Z
IF Output
DET Output
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.
Analog Indicator for Noise Figure. Variable range is set by
entering upper and lower limits.
Rear panel connectors supply drive signals for external
oscilloscope or
X-Y plotter. Variable range is set by entering upper
and lower limits. Output voltage range is
0 to 6 volts for X and Y.
Z axis output is positive going TTL, 0 to 5 volts signal for
blanking the oscilloscope.
- 25 dBm to - 55 dBm, 5 MHz Bandwidth
.2 volts to approx. + 5 volts, high impedance output
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.
. 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.
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EATON 2075 GENERAL INFORMATION
8. Exercise extreme care when
servicing the unit. High voltages
are used.
9. Capacitors inside the instrument
niay 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.
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 1/2 inch-pounds.
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EATON2075 INSTALLATION
SECTION 2
INSTALLATION
2-1. INTRODUCTION 2-3. AC POWER REQUIREMENTS
'This section of the manual contains information Prior to shipping, the 2075 is configured to operate on
required for unpacking, inspecting, and installing the 120 VAC,
60 Hz line power. The unit is easily re-
Eaton 2075 Noise-Gain Analyzer. 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:
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.
I WARNING I
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.
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INSTALLATION EATON 2075
Figure 2-1.
AC VOLTAGE SELECTION CARD
1. On the rear of the unit, locate the receptacle for
the line power cord. The power cord should be
unplugged from the receptacle.
2. Slide the transparent fu'se cover to the left, and
pull the FUSE PULL lever to remove the fuse.
3. Read the voltage level printed on the voltage
selector card. (This number becomes visible
after the fuse is removed.)
hole is provided in the card to accommodate a
hook for easy removal.
6. Rotate the card so that the desired operating
voltage is visible on its upper surface. Now
position the card for reinsertion with the desired
voltage on the outboard edge.
7. Reinsert the card. The desired voltage should be
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.
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