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Operating and Service Manual
Special Supplement
Agilent Technologies
N8975A Option K99
Blockdown Converter
This manual provides documentation for the following instrument:
N8975A Option K99
Manufacturing Part Number: N8975-90009
Printed in USA
December 2012
Revision B
Notice
The information contained in this document is subject to change
without notice.
Agilent Technologies makes no warranty of any kind with regard to this
material, including but not limited to, the implied warranties of
merchantability and fitness for a particular purpose. Agilent
Technologies shall not be liable for errors contained herein or for
incidental or consequential damages in connection with the furnishing,
performance, or use of this material.
Safety Information
The following safety notes are used throughout this manual.
Familiarize yourself with each of the notes and it's meaning before
operating this instrument.
WARNING Warning denotes a hazard. It calls attention to a procedure
which, if not correctly performed or adhered to, could result in
injury or loss of life. Do not proceed beyond a warning note
until the indicated conditions are fully understood and met.
CAUTION Caution denotes a hazard. It calls attention to a procedure that, if not
correctly performed or adhered to, could result in damage to or
destruction of the instrument. Do not proceed beyond a caution sign
until the indicated conditions are fully understood and met.
WARNING This is a Safety Class 1 Product (provided with a protective
earthing ground incorporated in the power cord). The mains
plug shall only be inserted in a socket outlet provided with a
protected earth contact. Any interruption of the protective
conductor inside or outside of the product is likely to make the
product dangerous. Intentional interruption is prohibited.
2
WARNING The power cord is connected to internal capacitors that may
remain live for 5 seconds after disconnecting the plug from it's
power supply.
WARNING The detachable power cord is the instrument disconnecting
device. It disconnects the mains circuits from the mains supply
before other parts of the instrument. The front panel switch is
only a standby switch and is not a LINE switch (disconnecting
device).
WARNING The opening of covers or removal of parts is likely to expose
dangerous voltages. Disconnect the product from all voltage
sources before starting to open.
WARNING These servicing instructions are for use by qualified personnel
only. To avoid electrical shock, do not perform any servicing
unless you are qualified to do so.
3
Warranty
This Agilent Technologies instrument product is warranted against
defects in material and workmanship for a period of one year from date
of shipment. During the warranty period, Agilent Technologies
Company will, at its option, either repair or replace products which
prove to be defective.
For warranty service or repair, this product must be returned to a
service facility designated by Agilent Technologies. Buyer shall prepay
shipping charges to Agilent Technologies and Agilent Technologies shall
pay shipping charges to return the product to Buyer. However, Buyer
shall pay all shipping charges, duties, and taxes for products returned
to Agilent Technologies from another country.
Agilent Technologies warrants that its software and firmware
designated by Agilent Technologies for use with an instrument will
execute its programming instructions when properly installed on that
instrument. Agilent Technologies does not warrant that the operation of
the instrument, or software, or firmware will be uninterrupted or
error-free.
LIMITATION OF WARRANTY
The foregoing warranty shall not apply to defects resulting from
improper or inadequate maintenance by Buyer, Buyer-supplied
software or interfacing, unauthorized modification or misuse, operation
outside of the environmental specifications for the product, or improper
site preparation or maintenance.
NO OTHER WARRANTY IS EXPRESSED OR IMPLIED. AGILENT
TECHNOLOGIES SPECIFICALLY DISCLAIMS THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE.
EXCLUSIVE REMEDIES
THE REMEDIES PROVIDED HEREIN ARE BUYER'S SOLE AND
EXCLUSIVE REMEDIES. AGILENT TECHNOLOGIES SHALL NOT
BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL,
OR CONSEQUENTIAL DAMAGES, WHETHER BASED ON
CONTRACT, TORT, OR ANY OTHER LEGAL THEORY.
4
Content
CONTENT 1-0
CHAPTER 1. GENERAL INFORMATION 1-1
SECTION 1.01 INTRODUCTION 1-1
SECTION 1.02 SPECIFICATIONS 1-2
SECTION 1.03 SAFETY CONSIDERATION 1-3
SECTION 1.04 DESCRIPTION 1-3
SECTION 1.05 OPTIONS 1-3
SECTION 1.06 ACCESSORIES SUPPLIED 1-3
SECTION 1.07 EQUIPMENT REQUIRED BUT NOT SUPPLIED 1-4
SECTION 1.08 CHASSIS SLIDE MOUNT KIT 1-4
SECTION 1.09 RECOMMENDED TEST EQUIPMENT 1-5
SECTION 1.10 SYMBOLS AND LABELS 1-6
CHAPTER 2. INSTALLATION 2-1
SECTION 2.01 INTRODUCTION 2-1
SECTION 2.02 INITIAL INSPECTION 2-1
SECTION 2.03 POWER REQUIREMENTS 2-2
SECTION 2.04 LINE VOLTAGE AND FUSE SELECTION 2-2
SECTION 2.05 POWER CABLES 2-2
SECTION 2.06 MATING CONNECTORS 2-3
SECTION 2.07 OPERATING ENVIRONMENT 2-4
SECTION 2.08 BENCH OPERATION 2-4
SECTION 2.09 RACK MOUNTING 2-4
SECTION 2.10 STORAGE AND SHIPMENT ENVIRONMENT 2-4
SECTION 2.11 PACKAGING 2-5
CHAPTER 3. OPERATION 3-1
SECTION 3.01 INTRODUCTION 3-1
SECTION 3.02 PANEL FEATURES 3-1
SECTION 3.03 FRONT PANEL FEATURES 3-1
(a) RF Input (J1) 3-1
(b) RF Output (J2) 3-1
(c) Power (S1) 3-1
SECTION 3.04 REAR PANEL FEATURES 3-2
(a) Power (MP1) 3-2
(b) Fuse 3-2
SECTION 3.05 OPERATING CHARACTERISTICS 3-2
SECTION 3.06 OPERATOR'S MAINTENANCE 3-2
GENERAL OPERATING INSTRUCTIONS 3-4
SECTION 3.08 TURN-ON PROCEDURE 3-4
SECTION 3.09 DOWN CONVERTER OPERATION 3-5
SECTION 3.10 SETUP AND CALIBRATION PROCEDURE 3-5
1-0
SECTION 3.11 SALES AND SERVICE OFFICES 3-6
CHAPTER 4. PERFORMANCE TESTS 4-1
SECTION 4.01 INTRODUCTION 4-1
SECTION 4.02 EQUIPMENT REQUIRED 4-1
SECTION 4.03 PERFORMANCE TEST RECORD 4-1
SECTION 4.04 CALIBRATION CYCLE 4-1
SECTION 4.05 PERFORMANCE TEST PROCEDURES 4-2
SECTION 4.06 FREQUENCY RANGE AND NOISE FIGURE 4-2
(a) Specification 4-2
(b) Equipment 4-2
SECTION 4.07 LO FREQUENCY ACCURACY 4-7
(a) Specification 92 GHz 50 MHz 4-7
CHAPTER 5. ADJUSTMENTS 5-1
CHAPTER 6. SERVICE 6-1
SECTION 6.01 INTRODUCTION 6-1
SECTION 6.02 SERVICE SHEETS 6-1
SECTION 6.03 SAFETY CONSIDERATIONS 6-1
(a) Before Applying Power 6-1
SECTION 6.04 SERVICING THE INSTRUMENT 6-3
SECTION 6.05 POZIDRIVE SCREWDRIVERS 6-3
SECTION 6.06 HARDWARE 6-3
SECTION 6.07 ASSEMBLY LOCATIONS 6-3
SECTION 6.08 PARTS AND CABLE LOCATIONS 6-3
SECTION 6.09 TEST POINT LOCATIONS 6-4
SECTION 6.10 COVER REMOVAL 6-4
SECTION 6.11 CLEANING INTERVALS 6-4
SECTION 6.12 SIX MONTH CLEANING 6-4
SECTION 6.13 TWELVE MONTH CLEANING 6-5
SECTION 6.14 OVERALL TROUBLESHOOTING 6-6
SECTION 6.15 PRINCIPLES OF OPERATION 6-6
SECTION 6.16 TROUBLESHOOTING 6-6
SECTION 6.17 CHECK LIST 6-7
CHAPTER 7. OPERATING THE DOWN CONVERTER WITH THE 8970B/8971C
NF SYSTEM 7-1
CHAPTER 8. SERVICE REPLACEABLE PARTS 8-1
SECTION 8.01 INTRODUCTION 8-1
SECTION 8.02 SERVICE REPLACEABLE PARTS LIST 8-1
1-0
Chapter 1. General Information
Section 1.01 Introduction
This Operating and Service Manual contains information required to install, operate, test and
service the Model N8975A Option K99 Block Down Converter. Throughout this manual the
Model N8975A Option K99 will also be referred to as the Down Converter.
The Down Converter Operating and Service Manual has eight sections consisting of:
Section 1 General Information
Section 2 Installation
Section 3 Operation
Section 4 Performance Tests
Section 5 Adjustments
Section 6 Service
Section 7 Operating with 8970B/8971C
Section 8 Replaceable Parts
1-1
Section 1.02 Specifications
Instrument specifications for the Down Converter are listed in Table 1-1. These specifications
are the performance standards against which the instrument may be tested. Supplemental
characteristics are listed in Table 1-2. Supplemental characteristics are not warranted
specifications, but are typical characteristics included as additional information for the user.
Table 1 - 1 Specifications
Characteristics Performance Conditions
Limits
Input Frequency 96.5 110GHz
Output Frequency 4.5 - 18GHz
LO Frequency 92GHz 50MHz
Noise Figure 24dB Maximum
<20dB Typical
Temperature
Range
Specification 15 to 35 C
Range
Operating Range 0 to 50 C
Storage -40 to +70 C
Table 1 - 2 Supplemental Characteristics
Characteristics Performance Limits Conditions
Conversion Gain 18dB Nominal @103GHz
Humidity 20 - 80% R.H. @40 C
Altitude 2000 Meters MAX (6562ft)
Power Consumption 70VA Max. 50 - 60Hz
100-240V
Dimensions 88.5mm H x 212.6mm W x Excluding front and rear
348.3mm D panel protrusions
Weight Net 4.5Kg (9.9lbs)
Shipping 8.4Kg (18.5lbs)
CAUTION This instrument is designed for use in a Pollution Degree 2 environment as
defined in IEC 60664
1-2
Section 1.03 Safety Consideration
This instrument has been designed and tested in accordance with IEC publication 61010-1:2001,
Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use,
and has been supplied in a safe condition. The instruction documentation contains information
and warnings that must be followed by the user to ensure safe operation and to maintain the
instrument in a safe condition.
WARNING This is a safety Class 1 product (provided with a protective earthing ground
incorporated in the power cord). The mains plug shall only be inserted in a
socket outlet provided with a protective earth contact. Any interruption of
the protective conductor inside or outside the instrument is likely to make the
instrument dangerous. Intentional interruption is prohibited.
Section 1.04 Description
The N8975A Option K99 Block Down Converter is designed to be used with the N8975A Noise
Figure Analyzer. The option K99 extends the frequency range of the N8975A by down
converting the 96.5GHz to 110GHz frequency band. In addition to the N8975A a suitable Noise
Source is required for a complete Noise Figure measurement system.
The Down Converter uses an internal 92GHz LO for down conversion of the 96.5GHz to
110GHz input. The resulting 4.5GHz to 18GHz signal is processed by the N8975A Noise Figure
Analyzer to give information about the noise figure and gain of a Device Under Test(DUT).
Section 1.05 Options
There are no electrical or mechanical options to the N8975A option K99 Down Converter.
Section 1.06 Accessories Supplied
The N8975A option K99 Down Converter is supplied with a three wire power cable. Different
cables are available for different power mains configurations. Check with you local Agilent
Technologies office for descriptions and part numbers for these cables.
A rack mount kit is supplied for mounting the N8975A option K99 in a standard 19inch EIA
rack. The part number for the rack mount kit is 5063-9240.
A RF cable, part number 08971-60127 is supplied. This cable is used to connect the Down
Converter RF OUTPUT to the N8975A INPUT.
1-3
An WR10 2 straight waveguide adapter is supplied. This is supplied to allow any type of
WR10 waveguide based noise source to connect to the Down Converter RF Input for calibration.
Section 1.07 Equipment Required but not Supplied
To form a noise figure measurement system for measurements in the 96.5 to 110GHz band the
additional equipment required is:
N8975A Noise Figure Analyzer
Suitable Noise Source
Section 1.08 Chassis Slide Mount Kit
This kit is used to install one or more instruments in a sliding support shelf,
Order shelf part number 5063-9255, and slide kit 1494-0015(for a single instrument, also order
filler panel 5002-3999).
1-4
Section 1.09 Recommended Test Equipment
Table 1-3 lists the test equipment recommended for use in testing, adjusting and servicing the
Down Converter. The Critical Specification column describes the essential requirement for each
piece of test equipment. Other equipment may be substituted if it meets or exceeds the critical
specifications.
The recommended model column may suggest more than one model. The first model shown is
usually the least expensive, single-purpose model. Alternate models are suggested, with
additional features, that would be a better choice in some applications.
Table 1 - 3 Recommended Test Equipment
Instrument Critical Specification Recommended
Model
Noise Figure Analyzer Noise Figure N8975A
Measurements 4.5-18GHz
Synthesizer 10MHz 20GHz 83623A
Millimeter Source WR10 waveguide 83558A
(Frequency Multiplier) termination
75 110 GHz
Noise Source (1 - 50 346C Option K01
GHz)
Noise Source (75 110 ENR> 9dB NC5110 (Noise Com)
GHz) or other equivalent
Spectrum Analyzer Signal Analysis 2-18GHz E4407B, 8566A/B
WR10 Waveguide WR10 WR10 2 Straight
Adapter (supplied) Waveguide
1-5
Section 1.10 Symbols and Labels
The Caution, risk of danger symbol. The product is marked with this symbol
when it is necessary for the user to refer to the instructions in the supplied
documentation.
The out position of a bistable push control switch
The In position of a bi-stable push control switch
The Stand-by symbol
The ON symbol
Indicates a Protective Conductor Terminal that must be connected to
earth ground before operating the equipment protects against
electrical shock in case of a fault.
Warning Warning denotes a hazard. It calls attention to a procedure which, if not
correctly performed or adhered to, could result in injury or loss of life. Do
not proceed beyond a warning note until indicated conditions are fully
understood and met.
Caution Caution denotes a hazard. It calls attention to a procedure which, if not
correctly performed or adhered to, could result in damage to or destruction
of the instrument. Do not proceed beyond a caution note until the
indicated conditions are fully understood and met.
ICES/NMB-001 This ISM device complies with Canadian ICES-001.
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