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O P E R A T I N G A N D S E R V I C E M A N U A L
HP 11793A
MIC R 0WAVE
CONVERTER
September 1990
11793-90011
HEWLETT
111111111111111111111111111111111111111111111111111111111111l111
l PACKARD
CERTlFlCATlON
Hewlett-Packard Company certifies that this product met its published specifications ut the time of shipment
from the factory. Hewlett-Packard further certifies that its calibration measurements are traceable to the United
States National Bureau of Standards, to the extent allowed by the Bureau's calibration facility, and to the
calibration facilities of other International Standards Organization members.
WARRANTY
This Hewlett-Packard instrument product is warranted against defects in material and workmanship for a period
of one year from date of shipment. During the warranty period, Hewlett-Packard 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 HP. Buyer shall
prepay shipping charges to HP and HP shall pay shipping charges to return the product to Buyer. However, Buyer
shall pay all shipping charges, duties, and taxes for products returned to HP from another country.
HP warrants that its software and firmware designated by HP for use with an instrument will execute its
programming instructions when properly installed on that instrument. HP 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 modificationor misuse, operation outside of the environmental
specifications for the product, or improper site preparation or maintenance.
NO OTHER WARRANTY IS EXPRESSED OR IMPLIED. HP SPECIFICALLY DISCLAIMS THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
EXCLUSIVE REMEDIES
THE REMEDIES PROVIDED HEREIN ARE BUYERS SOLE AND EXCLUSIVE REMEDIES. HP SHALL
NOT BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES, WHETHER BASED ON CONTRACT, TORT, OR ANY OTHER LEGAL THEORY.
ASSISTANCE
Product maintenance agreements and other customer assistance agreements are available for Hewlett-Packard
products.
For any assistance, contact your nearest Hewlett-Packard Sales and Service Office. Addresses are provided at
the back of this manual.
Agilent Technologies. Inc www agilent corn
24001 E Mission
Liberty take, WA 99019
.'::is:. Ag iIent TechnoIog ies
-
e .
, .
::
.*a*..
. Innovating the HP Way
June 8,2000
Dear Customer,
As of November 1, 1999, four of Hewlett-Packard's businesses, test and measurement,
semiconductor products, health care solutions, and chemical analysis became a new company,
Agilent Technologies. Now, many of your Hewlett-Packard products and services are in the care of
Agilent Technologies.
At Agilent Technologies, we are working diligently to make this transition as smooth as possible for
you. However, as a result of this transition, the products and related documentation contained in this
shipment may be labeled with either the Hewlett-Packard name and logo, the Agilent Technologies
name and logo, or a combination of both. Information in this package may refer to Hewlett-Packard
(HP), but applies to your Agilent Technologies product. Hewlett-Packard and Agilent branded
products with the same model number are interchangeable.
Whatever logo you see, the information, products, and services come from the same reliable source.
If you have questions about Agilent Technologies products and services, please visit our website at
httR://www.aqilent.com.
Sincerely,
Rebranding Team
HP 11793A
MICROWAVE
CONVERTER
SERIAL NUMBERS
This manual applies directly to instruments with serial
numbers prefixed 2520A.
With changes described i Paragraph 31, this manal
n
also applies to instruments with serial numbers pre-
fixed 2407A.
For additional important information about serial
numbers, see INSTRUMENTS COVERED BY THIS
MANUAL in Paragraph 4.
First Edition
OHEWLElT-PACKARD COMPANY 1985
EAST 24001 MISSION AVENUE, TAF C-34, SPOKANE, WASHINGTON, U.S.A., 99220
Operating and Service Manual Part No. 11793-90011
Microfiche Operating and Service Manual Part No. 11793-90012 Printed. MAY 1985
1 Regulatory Information
(Updated March 1999)
1
Regulatory Information (Updated March 1999)
Safety Considerations
GENERAL
This product and related documentation must be reviewed for familiarization with safety
markings and instructions before operation.
This product has been designed and tested in accordance with IEC Publication 1010,
"Safety Requirements for Electronic Measuring Apparatus," and has been supplied in a
safe condition. This instruction documentation contains information and warnings which
must be followed by the user to ensure safe operation and to maintain the product in a safe
condition.
SAFETY EARTH GROUND
A uninterruptible safety earth ground must be provided from the main power source to the
product input wiring terminals, power cord, or supplied power cord set.
SAFETY SYMBOLS
A Indicates instrument damage can occur if indicated operating limits are exceeded.
A Indicates hazardous voltages.
1- Indicates earth (ground) terminal
WARNING A WARNING note denotes a hazard. It calls attention to a procedure,
practice, or the like, which, if not correctly performed or adhered to,
could result in personal injury. Do not proceed beyond a WARNING
sign until the indicated conditions are fully understood and met.
CAUTION A CAUTION note denotes a hazard. It calls attention to a n operation
procedure, practice, or the like, which, if not correctly performed or adhered
to, could result in damage to or destruction of part or all of the product. Do
not proceed beyond an CAUTION note until the indicated conditions are fully
understood and met.
2 Chapter 1
Regulatory Information (Updated March 1999)
Safety Considerations for this Instrument
WARNING This product is a Safety Class I instrument (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 of the product is likely to make the
product dangerous. Intentional interruption is prohibited.
Whenever it is likely that the protection has been impaired, the
instrument must be made inoperative and be secured against any
unintended operation.
If this instrument is to be energized via an auto transformer (for
voltage reduction), make sure the common terminal is connected to
the earth terminal of the power source.
If this product is not used as specified, the protection provided by
the equipment could be impaired. This product must be used in a
normal condition (in which all means for protection are intact) only.
No operator serviceable parts in this product. Refer servicing to
qualified personnel. To prevent electrical shock, do not remove
covers.
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.
The opening of covers or removal of parts is likely to expose
dangerous voltages. Disconnect the product from all voltage sources
while it is being opened.
The power cord is connected to internal capacitors that my remain
live for 5 seconds after disconnecting the plug from its power supply.
For Continued protection against fire hazard, replace the line fuse(s)
only with 250 V fuse(s) or the same current rating and type (for
example, normal blow or time delay). D o not use repaired fuses or
short circuited fuseholders.
Always use the three-prong ac power cord supplied with this
product. Failure to ensure adequate earth grounding by not using
this cord may cause product damage.
This product is designed for use in Installation Category I1 and
Pollution Degree 2 per IEC 1010 and IEC 664 respectively. FOR
INDOOR USE ONLY.
This product has autoranging line voltage input, be sure the supply
voltage is within the specified range.
3
Regulatory information (Updated March 1999)
To prevent electrical shock, disconnect instrument from mains (line)
before cleaning. Use a dry cloth or one slightly dampened with water
to clean the external case parts. Do not attempt to clean internally.
Ventilation Requirements: When installing the product in a cabinet,
the convection into and out of the product must not be restricted.
The ambient temperature (outside the cabinet) must be less than the
maximum operating temperature of the product by 4" C for every 100
watts dissipated in the cabinet. If the total power dissipated in the
cabinet is greater than 800 watts, then forced convection must be
used.
Product Markings
CE - the CE mark is a registered trademark of the European Community. A CE mark
accompanied by a year indicated the year the design was proven.
CSA - the CSA mark is a registered trademark of the Canadian Standards Association.
4 Chapter 1
Model Safety Considerations
SAFETY CONSIDERATIONS
GENERAL I WARNING 1
This product and related documentation must be
reviewed before operation for familiarization with
safety markings and instructions. Interrupting the protective (grounding) conductor
This product is a Safety Class I instrument (pro- (inside or outside the instrument) or disconnecting
vided with a protective earth terminal). the protective earth terminal will cause a potential
shock hazard that could result in personal injury.
BEFORE APPLYING POWER (Grounding one conductor of a two conductor outlet
is not sufficientprotection).
Verify that the product is set to match the available
line voltage and the correct fuse is installed.
Whenever it is likely that the protection has been
SAFETY EARTH GROUND impaired, the instrument must be made inopera-
tive and be secured against any unintended
An uninterruptible safety earth ground must be operation.
provided from the main power source to the prod-
uct input wiring terminals, power cord, or supplied
power cord set. If this instrument is to be energized via an auto-
transformer (for voltage reduction), make sure the
SAFETY SYMBOLS common terminal is connected to the earth termi-
A Instruction manual symbol: the product
will be marked with this symbol when it is
necessary for the user to refer to the instruction
nal of the power source.
Servicing instructions are f o r use by
manual (refer to Table of Contents). service-trained personnel only. To avoid dangerous
f-
electric shock, do not perform any servicing unless
Indicates hazardous voltages. qualified to do so.
1 Indicates earth (ground) terminal.
,
Adjustments described in the manual are per-
The WARNING sign denotes a formed with power supplied to the instrument
hazard. I t calls attention to a while protective covers are removed. Energy avail-
procedure, practice, or the like, which, if not cor- able at many points may, if contacted, result in per-
rectly performed or adhered to, could result in per- sonal injury.
sonal injury. Do not proceed beyond a WARNING
sign until the indicated conditions are fully under-
stood and met. Capacitors inside the instrument may still be
charged even if the instrument has been discon-
The CAUTION sign denotes a nected from its source of supply.
hazard. It calls attention to an
operating procedure, practice, or the like, which, if
not correctly performed or adhered to, could result For continued protection against fire hazard, re-
in damage to or destruction of part or al of the
l place the line fuse(s) only with 250V fuse(s) of the
product. Do not proceed beyond a CAUTION sign same current rating and type (for example, normal
until the indicated conditions are fully understood blow, time delay, etc.). Do not use repaired fuses
and met. or short-circuited fuseholders.
..
11
Microwave Converter Model 11793A
MODEL 11793A
IF INPUT CABLE
(HP Part Number 11793-60006)
FREQUENCY CONTROL CABLE
(HP Part Number 8120-1838)
-- LO INPUT CABLE
(HP Part Number 11793-60009)
LINE POWER CABLE
Figure 1. HP Model I I 7 9 3 A Microwave Converter with Accessory Cables
0
Model 1 1793A Microwave Converter
1. GENERAL INFORMATION
This Operating and Service Manual contains information about initial inspection, operation, performance
tests, adjustments, troubleshooting and repair of the HP Model 1 1793A Microwave Converter.
2, Specifications
The HP 1 1793A Microwave Converter does not have "hard specifications" against which the instrument
can be tested for performance standards or limits. Instead, the Local Oscillator (LO) Requirements are
listed in Table 1. These requirements are the performance standards or limits against which the
instrument can be tested. The supplemental characteristics listed in Table 2 are not warranted
requirements but are typical characteristics included as additional information for the user.
LO Amplitude Range Frequency (GHz) Conditions
+8 dBm to +13 dBm 2 to 18 Without Option 001, 011 or 021
$7 dBm to +13 dBm 18 to 26.5 Without Option 001, 011 or 021
0 dBm to +5 dBm 18 to 26.5 With Option 001, 011 or 021
Table 2. Supplemental Characteristics
RF Input Connector: Precision 3.5 mm male
LO Input Connector: Precision 3.5 mm male
IF Output Connector: Type-N female
Rear Panel Control Connector: BNC female
Dimensions:
Height: 88 mm (3.5 in.)
Width: 425 mm (16.7 in.)
Depth: 528 mm (20.8 in.)
HP System II Module Size:
Height: 88 mm (3.5 in.)
Width: 1 Modular Width
Depth: 508 mm (20 in.)
1
Microwave Converter Model 11793A
3. Safety Considerations
This product is a Safety Class I instrument; that is, one provided with a prctective earth terminal. The
Microwave Converter and all related documentation must be reviewed before operation for complete
familiarization with safety markings and instructions. Refer to the Safety Considerations page found a t
the beginning of this manual for a summary of the safety information. Safety information pertinent to
the task a t hand (that is, installation, operation, performance testing, or service) is found throughout this
manual.
4. Instruments Covered by This Manual
This instrument has a two-part serial number. The first four digits and the letter comprise the serial
number prefix. The prefix is the same for all identical instruments; it changes only when a change is made
to the instrument. The last five digits form a sequential suffix which is unique to each instrument. The
contents of this manual apply directly to instruments having the serial prefix listed under Serial Numbers
on the title page.
An instrument manufactured after the printing of this manual may have a serial prefix that is not listed
on the title page. This unlisted serial prefix indicates that the manual for this instrument is supplied with
a Manual Changes supplement that documents the differences.
In addition to change information, the supplement may contain information for correcting errors in the
manual. To keep this manual as current and accurate as possible, Hewlett-Packard recommends that you
periodically request the latest Manual Changes supplement. The supplement is identified with the manual
print date and part number that appear on the title page. Complimentary copies of the supplement are
available on request from your nearest Hewlett-Packard office.
For information concerning a serial prefix not listed on the title page or in the Manual Changes
supplement, contact your nearest Hewlett-Packard office.
5. Description
The HP Model 11793A Microwave Converter down-converts microwave input signals in the range from
1.3 to 26.5 GHz. For frequencies below 1.3 GHz, signals are routed directly to the input of the measuring
instrument. Instruments suitable for lower frequency measuring are the HP 890 1B Modulation Analyzer
or the HP 8902A Measuring Receiver.
For input signals above 1.3 GHz, the Microwave Converter routes the signal through an internal mixer
which mixes the input signal with an external local oscillator. The difference frequency (that is, the
intermediate frequency or IF) is filtered, amplified, and then appears a t the IF OUTPUT connector. The IF
should be between 10 and 700 MHz.
The Microwave Converter requires a +8 dBm leveled output from the LO. For LOs with insufficient
power above 18 GHz, an optional internal amplifier ( 1 8 GHz to 26.5 GHz) is available. The measuring
instrument controls switching of the RF path and of the LO amplifier via a rear-panel connection on the
Microwave Converter.
2
Model 11793A Microwave Converter
6. Options and Accessories
Electrical Options
The options are summarized in Table 3. The following list describes each option:
Option 001. Adds an 18 to 26.5 GHz LO amplifier t o the standard instrument.
Option 010. Moves the LO INPUT to the right side of the front panel.
Option 011. Moves the LO INPUT to the right side of the front panel and adds the 18 to 26.5 GHz
LO amplifier.
Option 020. Moves all front-panel connectors to the rear panel.
Option 021. Moves all front-panel connectors to the rear panel and adds the 18 to 26.5 GHz LO
amplif ier.
I
Table 3. HP 11793A Option Guide
Front-Panel Placement Rear Panel
LO of LO Input Placement for
Amplifier Len Side Right Side All Connectors
1 I
Not installed Standard Option 010 Option 020
installed Option 001 Option 011 Option 021
Mechanical Options
Instruments with Serial Prefix 2407A have System 11 cabinet parts and hardware that are English thread.
Instruments with Serial Prefix 2520A and higher have System I1 cabinet parts and hardware that are
METRIC thread.
When ordering Option 907, 908, or 909 for instruments with serial number prefix 2407A (English
thread), use the HP part number in parenthesis.
Option 907 (Front-Handle Kit). Ease of handling is increased with front-panel handles. To retrofit a
standard instrument, order HP part number 5061-9688 (5061-0088).
Option 908 (Rack-Flange Kit). All necessary hardware and installation instructions are included t o
enable mounting of the Microwave Converter in a rack with 482 mm (standard 19 in.) spacing. To retrofit
a standard instrument, order HP part number 5061-9674 (5061-0074) which has standard 4.45 cm (1.75
in.) hole spacing.
Option 909 (Rack-Flange and Front-Handle Combination Kit). This kit is not simply a front-handle kit
and rack-flange kit packaged together. The combination is made up of unique parts which include both
functions. To retrofit a standard instrument, order HP part number SO6 1-9675 (SO6 1-0075) which has
4.45 cm (1.75 in.) hole spacing and is a standard flange.
Microwave Converter Model 11793A
Option 907 Option 908 Option 909
Front Handle Kit Rack Flange Kit Rack Flange and Front
Handle Combination Kit
Figure 2. Rack Mounting Options
Accessories Supplied
The accessories supplied with the Microwave Converter are shown in Figure 1.
a. The line power cable may be supplied in several plug configurations, depending on the destination of
the original shipment. Refer to the Paragraph 12 "Power Cables" in this manual.
b. Fuses with a 0.7SA rating for both 1 1 5 and 230 Vac (HP part number 21 10-0063) are supplied.
C. The control cable ( HP part number 8 120- 18 38) is a 30 cm (1 2 in.) flexible cable with male BNC 50
ohm connectors on each end. It connects to the frequency offset mode output of the measuring
instrument.
d. The LO cable (HP part number 11793-60009) is a 36 cm (14.5 in.) flexible cable with 3.5 mm
female end connectors. The LO cable includes a 3.5 mm male to Type-N male adapter. The cable
connects to tlie output of the LO source. Options 001, 01 1, and 021 delete the adapter.
e. The IF cable (HP part number 11793-60006) is a 25 cm (10 in.) flexible cable with Type-N male 50
ohm end connectors. The cable connects to the RF input of the measuring instrument.
4
Model 11793A Microwave Converter
7. Recommended Test Equipment
Table 4 lists the test equipment recommended to check, adjust, and troubleshoot the Microwave
Converter. The Minimum Specifications column describes the essential requirements for each piece of test
equipment. If substitute equipment is used, it must meet or exceed the minimum specifications.
Table 4. Recommended Test Equipment
Instrument Type Minimum Specification Suggested Model
Measuring Instrument Contains specific circuitry to control the HP 11793A. HP 8901B or HP 8902A'
Sensor Module Must have a frequency range of 26.5 GHz and be compatible HP 11792A'
with the measuring instrument.
Microwave LO Source See LO Amplitude Range in Table 1, LO Requirements. Note HP 86738"
that the required output power depends on the LO amplifier
option in the HP 11793A.
Microwave Signal Frequency Range: 2 to 26.5GHz HP 86738
Source Output Level: -1 to +1 dBm
I To Troubleshoot the Microwave Converter I
[ Instrument Type I Minimum Specification I
Multimeter DC Volts Range: 1OOV
DC Volts Accuracy: 2%
AC Volts Range: lOOV
AC Volts Accuracy: 10% at 50 Hz
RF Test Equipment Troubleshooting of the microwave components of the Microwave Converter requires
measurements to 26.5GHz of gain or insertion loss, SWR, power, conversion loss, and
frequency. Instruments which are required to perform these tasks include: signal genera-
tors and sweepers, network analyzers, spectrum analyzers, and power meters with ac-
companying couplers, pads, line stretchers, etc. Select the appropriate equipment and
use standard test procedures to make these measurements.
8. INSTALLATION
9. Initial inspection
Inspect the shipping container for damage. If the shipping container or cushioning material is damaged,
the shipping materials should be kept until the contents of the shipment have been checked for
completeness and the instrument has been checked mechanically and electrically. If there is mechanical
damage or if the instrument does not pass the performance tests, notify the nearest Hewlett -Packard
office. Keep the damaged shipping materials (if any) for inspection by the carrier and a Hewlett-Packard
representative.
5
Microwave Converter Model 1 1793A
10. Power Requirements
The Microwave Converter requires a power source of 115, 230 Vac (+lo%,-20%),48 to 66 Hz. Power
consumption is 20 VA maximum.
11. Line Voltage Selection
Before the instrument is plugged in, it must De set to the voltage of
the power source, or damage to the instrument may result.
A line voltage switch enables selection of either 11SV or 230V. The line voltage is indicated on this
rear-panel switch. Slide the switch to the proper line voltage for operation.
12. Power Cables
BEFORE CONNECTING THIS INSTRUMENT, the protective earth
terminal o f the instrument must be connected to the protective
conductor of the (Mains) power cord. The Mains plug shall only be
inserted in a socket outlet provided with a protective earth contact.
The protective action must not be negated b y the use of an extension
cord (power cable) without a protective conductor (grounding).
Grounding one conductor o f a two-conductor outlet is not sufficient
protection.
This instrument is provided with a three-wire power cable. When connected to an appropriate ac power
receptacle, this cable grounds the instrument cabinet. The type of power-cable plug shipped with the
instrument depends on the country of destination. See Table 5 for part numbers of the available power
cables and Mains plugs.
13. Mating Connectors
All coaxial connectors (except the RF Input) used with the Microwave Converter are provided on the
three accessory cables supplied with the instrument listed under Paragraph 6, I ' Accessories Supplied 'I. The
RF Input connector should be of the APC 3.5 mm female SO ohm type. Refer to Table 2, Supplemental
Characteristics for the correct type and location for mating each connector.
Use the correct torque wrench when installing sub-miniature
connectors.
Tighten 3.5 mm connectors to 0.7 N.m (6.3 in.Eb). Tighten Type-N
connectors to 0.7 N m (6.3 in.lb).
6
Model 1 1 7 9 3A Microwave Converter
z!q
Table 2-2. AC Power Cables Available
I Cable
Number Plug Length Cable For Use
Description Color In Country
I:".J
(inches)
I 250V 8120-1351 0 Straight'BS1363A 90 Mint Gray United Kingdom,
8120-1703 4 90" 90 Mint Gray Cyprus, Nigeria,
Rhodesia,
0 0 Singapore
I 250V 79 Gray Austrailia,
87 Gray New Zealand
Straight'CEE7-Y11 79 Mint Gray East and West
8120-1692 goo 79 Mint Gray Europe, Saudi
Arabia, Egypt,
(unpolarized in
many nations)
I 125V 8120-1378 5 Straight'NEMA5-15P 80 Black United States,
8120-1398 5 90" 80 Black Canada, Mexico,
8120-1754 7 Straight'NEMA5-15P 36 Black Japan (1OOV or
8120-1378 1 Straight'NEMA5-l5P 80 Jade Gray 200V), Philippines,
8120-1521 6 90" 80 Jade Gray Taiwan
I
8120-1676 2 Straight'NEMA5-15P 36 Jade Gray
250 V 8120-2104 3 Straight'SEVl 01 1 79 Gray Switzerland
1959-24507
Type 12
~~
8120-0698 6 Straight'NEMAG-15P United States,
Canada
8120-1957 2 Straight'DHCK107 79 Gray Denmark
8120-2956 3 90" 79 Gray
I 250V 8120-4211 7 Straight'lEC83-B1 79 Black South Africa, India
8120-1860 6 Straight'CEE22-VI
(Systems Cabinet Use)
'Part number shown for plug is industry identifier for plug only. Number shown for cable is HP Part Number for complete
cable including plug.
E = Earth Ground; L = Line; N = Neutral
7
Microwave Converter Model 11793A
14. Operating Environment
The operating environment should be within the following limitations:
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