HP 3326A User manual

HEWLETT
PACKARD
CERTIFICATION
Hewlett-Packard Company certifies that this product met its publishedspecifications at the time of shipment
from the factory. Hewlett-Packardfurther certifies that its calibration measurements are traceable to the United
States NationalBureauof Standards, to theextent allowedbythe Bureau's calibration facility, andtothe calibra-
tion facilities of other International Standards Organization members.
WARRANTY
This Hewlett-Packardproduct is warranted against defects in material and workmanship for a period of one
year from date of shipment. Duringthe warranty period, Hewlett-PackardCompany 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 returnthe productto Buyer. However,
Buyer shall pay all shipping charges, duties, and taxes for products returned to -hp- from another country.
HPsoftware and firmware products which are designated by HPfor use witha hardware product, when properly
installed on that hardware product, are warranted not tofail to execute their programming instructions due
to defects in materials and workmanship. If HP receives noticeof such defects duringtheir warranty period,
HPshall repair or replace software mediaand firmware which do notexecute their programming instructions
due to such defects. HP does not warrant that the operation of the software, firmware or hardware shall 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-suppliedsoftware or interfacing, unauthorized modificationor misuse, operation outside of the
environmental specifications for the product, or improper site preparation or maintenance.
NOOTHER WARRANTY IS EXPRESSED OR IMPLIED.HEWLETT-PACKARD SPECIFICALLY DISCLAIMSTHE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
EXCLUSIVE REMEDIES
THE REMEDIES PROVIDED HEREIN ARE BUYER'S SOLE AND EXCLUSIVE REMEDIES. HEWLETT-PACKARD
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 maintenanceagreements andother customer assistance agreements are available for Hewlett-Packard
products.
For any assistance, contact your nearest Hewlett-Packard Sales andService Office. Addresses are provided at
the back of this manual.

Reproduced With Permission Courtesy Agilent Technologies, Inc.

HEWLETT
PACKARD
SAFETY SUMMARY
The followinggeneral safety precautions must be observed duringall phases of operation, service, and repair
of this instrument. Failure to comply withthese precautionsor with specific warnings elsewhere inthis manual
violates safety standards of design, manufacture, and intended use of the instrument. Hewlett-Packard Com-
pany assumes no liability for the customer's failure to comply with these requirements. This is a Safety Class
1 instrument.
GROUND THE INSTRUMENT
To minimize shock hazard, the instrument chassis and cabinet must be connected to an electrical ground.
The instrument is equipped with a three conductor ac power cable. The power cable must either be plugged
into an approved three-contact electrical outlet or used with a three-contact to two-contact adapter with the
groundingwire(green)firmly connectedto an electrical ground(safety ground) at the power outlet.The power
jack and mating plugof the power cable meet International ElectrotechnicalCommission
(lEC) safety standards.
DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE
Donotoperate the instrument in the presence of flammable gases or fumes. Operationof any electrical instru-
ment in such an environment constitutes a definite safetv hazard.
KEEP AWAY FROM LIVE CIRCUITS
Operating personnel must not remove instrument covers. Component replacement and internal adjustments
must be made by qualified maintenance personnel. Donot replace componentswith power cable connected.
Under certain conditions, dangerous voltages may exist even with the power cable removed. To avoid injuries,
always disconnect power and discharge circuits before touching them.
DO NOT SERVICE OR ADJUST ALONE
Donotattempt internal service or adjustment unless another person, capable of rendering first aid and resus-
citation, is present.
DO NOT SUBSTITUTE PARTS OR MODIFY INSTRUMENT
Becauseof the danger of introducingadditional hazards, do not install substitute parts or perform any unautho-
rized modification to the instrument. Return the instrument to a Hewlett-Packard Sales and Service Office
for service and repair to ensure that safety features are maintained.
DANGEROUS PROCEDURE WARNINGS
Warnings, such as the example below, precede potentiallydangerous procedures throughout this manual. Instruc-
tions contained in the warnings must be followed.
Dangerous voltages, capable of causing death, are present inthis instrument. Use
extreme caution when handling, testing, and adjusting.

SAFETY SYMBOLS
General Definitions of Safety Symbols Used On Equipment or In Manuals.
Instruction manual symbol: the productwill be marked with this sym-
bolwhen it is necessary for the user to refer tothe instruction manual
in order to protect against damage to the instrument.
Indicates dangerous voltage (terminals fed from the interior by vol-
tage exceeding
1000 volts must be so marked).
Protective conductor terminal. For protection against electrical shock
in case of a fault. Used with field wiring terminals to indicate the
terminal which must be connected to ground before operating
equipment.
Low-noiseor noiseless, clean ground(earth)terminal. Used for a sig-
nal common, as well as providing protectionagainst electrical shock
in case of a fault.A terminal marked with this symbol must be con-
nectedtoground inthe manner described in the installation(operat-
ing) manual, and before operating the equipment.
Frame or chassis terminal.A connectiontothe frame (chassis)of the
equipment which normally includes all exposed metal structures.
Alternating current (power line).
Direct current (power line).
Alternating or direct current (power line)
The WARNING sign denotes a hazard. Itcalls attention to a proce-
WARNING
dure, practice, condition or the like, which, if not correctly performed
a or adhered to, could result in injury or death to personnel.
The CAUTION sign denotes a hazard. Itcalls attention to an operat-
ingprocedure, practice, condition 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.
NOTE
The NOTE sign denotes important information. Itcalls attention to
procedure, practice, condition or the like, which is essential to
highlight.

TABLE OF CONTENTS
.
HP 3326A TURN ON AND WARM UP . . 1-2
CH A AND CH B OUTPUTS
.... .... .... 1-5
SELECTING AN OPERATING MODE
, , , ..... 1-6
SELECTING THE OUTPUT FUNCTION
.... ....... 1-12
DATA ENTRY AND MODIFICATION
...... ...... 1-14
THE ENTRY KEYS
....... 1-20
LINEAR FREQUENCY SWEEP
. . . . . 1-29
DISCRETE FREQUENCY SWEEP
. . .... 1-39
MODULATION
........ ...... 1-44
SAVING
I RECALLING AN INSTRUMENT STATE. AND MEMORY OPERATIONS 1-50
CALIBRATION AND SELF TEST
. . ........ . . 1-53
HP-IB STATUS KEYS
I INDICATORS / CONNECTOR ...
1-57
EXTERNAL TRIGGER
. . . . ... ... 1-59
MARKER
1 Z-BLANK (PEN LIFT) 1 X-DRIVE OUTPUTS . . .... 1-59
SYNC A OUTPUT
... . . ... 1-63
20-33 MHz L.O.OUTPUT (EXTENDED FREQUENCY)
... 1-64
PHASE LOCK TO EXT REFIOVEN STABILIZED FREQUENCY OPTION
....... 1-66
Chapter 2 . HP-IB Operation
DESCRIPTION OF THE HP-IB ... ... . . . . ..... 2-1
HP 3326A HP-IB CAPABILITY
........ ... .... 2-2
HP-IB INTERFACE MANAGEMENT LINES
. . ....... 2-2
TALK
I LISTEN ADDRESSES . . ....... 2-2
VIEWING THE HP 3326A HP-IB ADDRESS
. . 2-4
CHANGING THE HP 3326A HP-IB ADDRESS 2-4
BUS MESSAGES
. . . 2-4
SERVICE REQUEST
.... ......... 2-6
THE STATUS BYTE
........ ..... 2-7
MASKING THE STATUS BYTE
....... . . 2-8
Chapter 3 . HP 3326A HP-IB Commands
REMOTE FRONT PANEL OPERATION .... .... 3-1
COMMAND SYNTAX
.... . . ... 3-1
BUS MODES
. . .... 3-3
VIEWING THE HP 3326A HP-IB ADDRESS
........ 3-3
CHANGING THE HP 3326A HP-IB ADDRESS
...... 3-4
INTERROGATING THE HP 3326A FOR SETUP PARAMETERS
. . .... 3-4
.....
DISPLAYING THE HP 3326A SETUP PARAMETERS .... 3-4
MODIFYING PARAMETERS
........ . . 3-5
DISPLAY CONTROL
............ ... 3-6
SAVING OR RESTORING AN HP 3326A SETUP
.... 3-6
HP 3326A IDENTIFICATION
...... ........ 3-7
TRIGGERED SWEEPS
..... ...... . . 3-8
READING AND MASKING THE STATUS BYTE
.... . . . . 3-8
ERROR CODES
. . . . ..... 3-10
HP 3325A COMPATIBILITY
. . ... 3-12
UNITS
.................. ... 3-13
HP 3326A MNEMONICS SUMMARIES
........... 3-13
Appendices
APPENDIX A A1
APPENDIX
B B1
APPENDIX C lns~deRear Cover

CHAPTER I
OPERATIONAND REFERENCE

Chapter 1 . Table of Contents
HP 3326A TURN ONAND WARM UP ........................ 1.2
CHA AND CH B OUTPUTS
................................... 1-5
SELECTING
AN OPERATING MODE .......................... 1-6
SELECTING THE OUTPUT FUNCTION
.......................... 1-12
DATA ENTRY AND MODIFICATION
.......................... 1-14
..........................................
THE ENTRY KEYS 1-20
LINEAR FREQUENCY SWEEP
................................ 1-29
..............................
DISCRETE FREQUENCY SWEEP 1-39
MODULATION
............................................. 1-44
SAVING
I RECALLING ANINSTRUMENT STATE,
AND MEMORY OPERATIONS ............................... 1.50
CALIBRATION AND SELF TEST
................................ 1.53
HP-IB STATUS KEYS
I INDICATORS I CONNECTOR ............... 1.57
EXTERNAL TRIGGER
........................................ 1.59
MARKER
I Z-BLANK (PEN LIFT) I X-DRIVE OUTPUTS ............. 1-59
..........................................
SYNC A OUTPUT 1.63
20-33 MHz L.O. OUTPUT (EXTENDED FREQUENCY) ............ 1-64
PHASE LOCK TO EXT REFIOVEN STABILIZED
......................................
FREQUENCY OPTION 1-66

Qservice ----- This Document is a complete scan from the Original HP - Agilent Manual ----- Qservice

Turn on and Warm up
HP 3326A TURN ON AND WARM UP
Turn On and Power Up Self Tests
Connect the HP 3326A to a suitable power source and depress the POWER switch to
POWER
apply power to the entire HP 3326A. When power is applied,the HP 3326A initially dis-
plays "HP 3326A" followed by a list of the options installed.The HP 3326A then initi-
ates a series of self tests and calibrates internal circuits. During a self test, all indica-
tors (except the EXT REF indicator) and display segments are illuminated then
extinguished, and a series of internal tests are initiated. After each internal test, PASS
or FAIL followed by a test number is displayed to indicate the test results. During a
self test, the outputs are disabled.
When power is removed from the HP 3326A with the POWER key, the
HP 3326A is
in a standby condition. In the standby condition, power is applied to the high stability
frequency reference circuits (Option 001) to maintain frequency accuracy.
Turn On State
The initial state of the HP 3326A at power up is dependent upon the setting of internal
switches. The normal turn on state is the preset state described in "The Preset State
and the INSTR PRESET Key". However, through the use of the internal SAVE switch,
the setup state selected prior to removing power can be selected as the turn on state.
Setting of internal switches must bedone by qualified service personnel.The location
and settings of the SAVE switch are described in the HP 3326A Service Manual.
Warm Up
An HP 3326A without the high stability frequency reference (Option 001) requires 30
minutes of operation to meet all specifications. An HP 3326A with Option 001 requires
15 minutes of operation to meet frequency specifications if power is disconnected for
less than 24 hours. If power is disconnected from the HP 3326A with Option 001 for

Turn on and Warm up
more than 24 hours, up to 72 hours of operation may be required to meet frequency
specifications.The HP 3326A with Option
001 requires 30 minutesof operationto meet
other specifications.
NOTE
Whenpower is removed from the HP 3326A with
the POWERkey, the
HP 3326A is in astandby con-
dition. In the standby condition, power is applied
to the high stability frequency reference circuits
(Option
00 1) to maintain frequency accuracy.
The Preset State and the lnstr Preset Key
INSTR
PRESET
The preset state of the HP 3326A is listed in Figure 1-1. The HP 3326A is restored to
the preset state by pressing the green INSTR PRESET (INSTRument PRESET) key. INSTR
PRESET provides a convenient starting state for establishing an instrument setup. INSTR
PRESETdoes notdestroy instrument states or discrete frequency sweep elements stored
in the internal nonvolatile memory.
HP-IB Example:
"RST"

Turn on and Warm up

CH A and CH B Outputs
CH A AND CH B OUTPUTS
CH A and CH B Output Connectors
The CH A (channel A) and CH B (channel B) output connectors are normally located
onthe front panel.Option 003, Rear Panel MainSignal Outputs, replacesthe front panel
channel
A and B outputs with rear panel outputs.
The channel
A connector, in addition to being the output for channel A, is also the ac-
tive output for combined and internal modulation operation. For combined and internal
modulation operation, the channel B output is is used internally and is unavailable at
the CH B connector.
The output impedance is 50
Q from 0 to 100 kHz, with a return loss of greater than
20 dB over the range of 100 kHz to 13 MHz. The output impedance with the high volt-
age option enabled is less than 2
Q from 0to 50 kHz,and less than 10 D over the range
of 50 kHz to 1 MHz. Both outputs share the same ground and may be floated up to
+ 42 volts peak.
Themaximum peak voltage lac + dc)that can be
safely applied between chassis and the outer con-
ductor of the
HP 3326A input and output connec-
tors is
+ 42 volts peak.

Setup For Viewing Output Waveforms
Figure 1-2 illustrates a simple setup to view the HP 3326A outputs and observe the
effects of changing the HP 3326A settings. For example purposes, the selection of an
oscilloscope
is not critical although a dual channel oscilloscope has the advantage of
displaying both channels simultaneously.
SELECTING AN OPERATING MODE
The Mode Key
The MODE key selects the operating mode of the HP 332614. Eachtime the MODE key
is pressed,the operating modesequences through the
2 CHANNEL,2 PHASE, 2 TONE,
and PULSEoperating modes,The modeselected is indicatedby the illuminated indica-
tor.COMBINEDoperation is enabledby pressing the blue SHIFT key prior to the MODE
key.The operating modes affect operating limits, operating characteristics, and selec-
tion of the CH A and CH
B outputs. The effects on the operating characteristics and
limits are included in the applicable sections for the characteristics and limits. When
the 2 PHASE or PULSE mode is selected, the HP 3326A performs an internal phase
calibration. During a mode change, the channel
A and B outputs are disabled.

Z Channel Mode
In the 2 CHANNEL mode, the HP 3326A operates as two independent synthesizers.
Sweepparameters,frequency, amplitude, dc offset,external modulation,sine wave out-
put,and square wave output is independent for each channel.With internal modulation
enabled, the channel
B synthesizer is used to internally modulate the channel A syn-
thesizer. Figure
1-3 illustrates the effect of changing frequency inthe 2 CHANNEL mode.
HP-18 Examples:
"MODE1"
or
"MODE TWOC"
STEP 1
STEP 2
STEP 3
STEP 4

- -*
Selectmg an Operating Mode
7- -"
2 Phase Mode
In the 2 PHASE mode, both channel A and B frequencies are the same (see Figure
1-4). The phaseoffset of channel B with respect to channel A remains constant as fre-
quency is changed.Amplitude, dc offset, external amplitude modulation, sine wave out-
put, and square wave output is independent for each channel,
HP-18 Examples:
"MODE 2"
or
"MODE TWOP"
STEP 1
STEP 2
STEP 3
STEP 4

Selectmg an Operating Mode
In the 2 TONE mode, the channel B frequency tracks changes to the channel A fre-
quency (see Figure
1-5). The maximum frequency difference between channel A and
channel
B is 100 kHz.Amplitude, dc offset,external amplitude modulation, sine wave
output, and square wave output are independent for each channel.
HP-IB Examples:
"MODE3"
or
"MODE TWOT"
STEP 1
STEP 2
STEP 3
STEP 4

ating Mode
Pulse Mode
,-*-m,s ---,*
Inthe PULSE mode,the channel B square wave output IS the complement of the chan-
S ,
nelAsquare wave output (see Figure 1-6). Amplitude, dc offset, and external amplitude
modulat~onare independent for each channel
HP-IB Examples:
"MODE$"
or
"MODE PULS"
STEP 1
STEP 2
STEP 3
STEP 4