Noise Com UFX7000 Series Скачать руководство пользователя страница 8 | Manualshive

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Noise Com UFX7000 Series Скачать руководство пользователя страница 8

NOISE COM, INC

IV.

OPERATION

4-1

INTRODUCTION

The NOISE/COM PNGI uses a powerful single-chip microprocessor
to accurately control the amplitude, bandwidth, and combining
of its internal broad-band noise source and an externally

applied user generated signal.

Commands to the PNGI can be entered via a front-panel
dedicated keypad. Alternately, commands can be down loaded

from any computer using the GPIB (HP-IB) IEEE-488
instrumentation bus (as a talker), or by the optional RS-232,
RS-422, or RS-423 adapters allowing connection to any

asynchronous serial interface. A front panel alphanumeric
display and lighting status indicators give the operator

visual verification of the programming process and functional
state of the device.

The PNGI includes a special non-volatile memory which will

retain various programmed parameters after the unit has been
powered-off, and restore them to the state they were in when
the instrument was last used. These preserved functions

include GPIB listener address and user programmed control
sequences specifying attenuation levels, signal bandwidth,

time delays and incremental attenuation step values.

A "Reset" button has been provided. Use of this button will
return the instrument to the power turn on state. At power
turn on, the programmable attenuator is at 127 dB and standby

is off.

When the instrument is powered up the LCD display will show
the following for several seconds:

NOISE COM, INC

PROGRAMMABLE NOISE

GENERATOR III

TYPE 2

The type code refers to the status of various factory

installed options.

Document M016301

Pg 10

Rev. 2 2/26/03

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

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Содержание UFX7000 Series

Страница 1: ...cess underutilized and idle equipment along with credit for buybacks and trade ins Custom engineering so your equipment works exactly as you specify Critical and expedited services Leasing Rentals Demos In stock Ready to ship TAR certified secure asset solutions Expert team I Trust guarantee I 100 satisfaction All trademarks brand names and brands appearing herein are the property of their respect...

Страница 2: ... INSTALLATION 3 1 Initial Inspection 3 2 GPIB IEEE 488 BUS Interconnection 3 3 GPIB Address 3 4 RS 232 RS 422 RS 423 Interconnection IV OPERATION 4 1 Introduction 4 2 Front Panel Controls 4 3 Remote Operation V PERFORMANCE VERIFICATION VI ADJUSTMENT CALIBRATION VII SERVICE 7 1 Common Parts 7 2 Parts List 7 3 Figures 1 2 and 3 VIII WARRANTY Document M016301 Pg 2 Rev 2 2 26 03 Artisan Technology Gro...

Страница 3: ...e appears in the window when access door is closed DO NOT attempt to rotate wheel in place 5 Replace fuse carrier into right hand side slot this is the only active side with the white arrow facing to the right Close access door THIS INSTRUMENT IS SUPPLIED WITH A FUSE FOR THE VOLTAGE SELECTED ALL SIGNAL AND CONTROL CABLES CONNECTED SHOULD NOT EXCEED 3 Meters 9 Feet IN LENGTH FOR PROPER OPERATION TH...

Страница 4: ...ans of front panel controls or alternately they can be controlled remotely by means of a controller via IEEE 488 GPIB BUS RS 232 RS 422 or RS 423 option available These Instruments operate remotely only in the listen mode The case is 17 wide 5 25 high and 12 5 deep It is equipped with front panel handles and fold down feet Rack mounting brackets for 19 rack mounting are available Brackets are moun...

Страница 5: ...ise output Noise output will be 6 dB below standard output specified 6 The following items may be added to Item 5 Option Items 1 4 and a 127 dB 1 dB step attenuator All of the preceeding items are programmable These option items will be located in the input connector arm of the RF circuit 7 The marker input option permits injection of a signal into the output line The marker input is decoupled app...

Страница 6: ...with 0 1 second resolution Programmable Attenuator Standard 0 127 dB in 1 dB steps Programmable Attenuator Optional 127 9 dB in 0 1 dB steps Bandwidth selection Optional band switching filter to customer specification Consult Noise Com Standby Position Power is switched into a dummy load Reset A logic reset button is provided Second Output Optional SPDT Switch to connect either of two outputs Docu...

Страница 7: ...ns are as follows 1 No more than 15 Instruments may be installed on the bus 2 Total accumulative cable length in meters may not exceed two times the number of bus instruments or 20 meters whichever is less 3 3 GPIB IEEE 488 BUS ADDRESS The programmable noise generating instrument as shipped from the factory is preset to address 5 3 4 RS 232 RS 422 RS 423 INTERCONNECTION optional RS 232 interconnec...

Страница 8: ...GI includes a special non volatile memory which will retain various programmed parameters after the unit has been powered off and restore them to the state they were in when the instrument was last used These preserved functions include GPIB listener address and user programmed control sequences specifying attenuation levels signal bandwidth time delays and incremental attenuation step values A Re...

Страница 9: ... without options then the display would indicate the noise attenuation of 127 dB unless a 2 GHz unit then 79 dB is the maximum attenuation and the noise filter at position 1 The internal Noise Attenuator NA and Signal Attenuator for an externally applied signal SA are each set to the maximum attenuation permitted by the PNG Type The internal Noise Filter NF and Signal Filter SF are set to position...

Страница 10: ...s pressed the New Setting will be burned into non volatile memory replacing the previous value The MAIN INFORMATION DISPLAY will re appear Permissible values for the GPIB BAUD parameter are 0000 through 0031 which represent GPIB addresses and the discrete values 0150 0300 0600 1200 2400 4800 and 9600 which represent Baud Rates for the optional RS 232 485 Asynchronous Serial Interface Selecting a v...

Страница 11: ... the first column key which corresponds to the parameter to be changed An Information Display similar to one the samples below will be appear The bar underlining the New Setting 000 0 or 0 is a cursor inviting the user to alter this parameter A new value may be entered from the keyboard followed by ENTER If only the ENTER key is pressed without entering any new digits the original value will not b...

Страница 12: ...case the first filter is actualized with filter setting 3 the second filter is setting 4 etc INCREMENTING DECREMENTING ATTENUATORS The Noise and Signal Attenuators may be incremented or decremented by the programmed STEP size using only two key strokes To use this feature first set the Step Size to the appropriate value Pressing the STEP key will cause the following Information Display to appear T...

Страница 13: ... instructions which can be stored in memory and called for execution when needed The size of a program the number of instructions it may contain is limited by the amount of memory available for storage Programs in the PNG III are organized like snippets of movie film each having up to sixteen 16 frames As in a movie each FRAME can describe a different piece of the action FRAMES played in sequence ...

Страница 14: ... the next sequential frame will appear for editing THE LAST FRAME IN A PROGRAMMED SEQUENCE MUST HAVE THE EXIT COMMAND The EXIT Command will be saved in the PNG s non volatile memory and terminate the Program Editing Session The session may be terminated prematurely by pressing the RESET button however the currently displayed frame if altered will not be posted to non volatile memory Two new functi...

Страница 15: ...eated indefinitely The required programming steps are as follows PRG STP KEYSTROKES COMMENTS 0 00 ENT ENT PRG 0 STP 00 STEP 0 0 2 0 ENT SET NS 002 0 0 01 NOISE FILT 2 ENT SET NF 2 0 02 NA 0 0 0 0 ENT SET NA 0 000 0 03 DELY 0 0 0 5 0 ENT DELAY 5 0 SEC 0 04 INC NOISE ATTEN ENT NA NA NS 2 0 0 05 DELY 0 0 0 5 0 ENT DELAY 5 0 SEC 0 06 INC NOISE ATTEN ENT NA NA NS 4 0 0 07 DELY 0 0 0 5 0 ENT DELAY 5 0 S...

Страница 16: ...ograms longer than 16 steps makes the used program space unusable for programs that would normally fit into the over flow space Bear in mind too that the GOTO command can only branch within the true space of the current program and that the programming language does not yet support conditional branch instructions EXECUTING A STORED PROGRAM SEQUENCE To execute a previously stored program sequence p...

Страница 17: ...ommands and data from a controlling device and respond with acceptance handshaking when required Commands may be entered individually 1 command per line or in groups several commands per line with a maximum of 64 characters including CR LF per line Commands not having proper syntax or excessive length will be ignored It is the user s responsibility to insure that only valid and proper values are e...

Страница 18: ...that directly addresses the Attenuators or Filters is executed NA NF XA XF the MAIN INFORMATION DISPLAY will show the change to the most recently effected channel Noise or external COMMANDS NAnnnn or NAnnn n Sets the Noise Attenuator to nnn n dB NSnnnn or NSnnn n Sets the Noise Step size to nnn n dB NF000n or NF n Sets the Noise Filter to position n NAI Increments the Noise Attenuator by the Noise...

Страница 19: ...mp to the Async Port REMOTE CONTROL EXAMPLES NA0123 cr Sets the Noise Attenuator to 012 3 NA12 3 NF0007 cr Sets the Noise Attenuator to 012 3 NA000 0 NS001 0 cr Sets the Noise Attenuator to 000 0 NAI cr When following the above sets the Noise Attenuator to 001 0 db NAI cr When following the above sets the Noise Attenuator to 002 0 db NAD cr When following the above sets the Noise Attenuator back t...

Страница 20: ... or both Valid 2 character Function Codes for PNG III Programs are NA Noise Attenuator XA eXternal signal Attenuator NF Noise Filter XF eXternal signal Filter NS Noise Step XS eXternal signal Step TD Time Delay GO GOTO EX EXIT Note that it is possible to enter a Signal Step size that is different than the Noise Step size when programming via a Remote Port It is important to note that a Noise Step ...

Страница 21: ...Command Line T1 5 5 NF0002 NA120 0 XF0004 XA0000 CR The above Trigger Command would cause the Noise Filter to be set at 2 the Noise Attenuator to be set at 120 0 the eXternal Filter to be set at 4 and the eXternal Attenuator to be set at 000 0 dB This would occur 5 5 seconds after receipt of an anticipated GET command from the GPIB interface When any of the PNG functions are activated as a result ...

Страница 22: ...Power The presented valued will have validity only for those parameters whose features have been installed in the PNG III Typical Format is 1270 1270 0001 0001 0010 0010 0000 0000 0000 0000 0crlf Note that values for Attenuation Step and Time parameters are reported without decimal points It should be recognized that a decimal point is appropriate between the 3rd and 4th digits of these values Doc...

Страница 23: ...2 FREQUENCY RESPONSE Frequency response may be verified by placing a 10 dB attenuator on the output of the programmable noise instrument and viewing on a spectrum analyzer of FFT as appropriate 5 3 Power output may be measured by means of a power meter and thermistor mount for frequencies above 10MHz Below 10MHz a true RMS voltmeter such as HP3400A with 50 ohms shunting the input should be used 5 ...

Страница 24: ...to the calibration facilities of other International Standards Organization members Your Noise Generating Instrument should be returned to Noise Com Inc periodically for adjustment and calibration One year after purchase and at least once a year thereafter is highly recommended to re assure your instrument s accuracy Favorable 3 years Calibration Service Contracts are available For further informa...

Страница 25: ...ranty period provided they are returned to Noise Com Repairs necessitated by misuse of the product are not covered by this warranty NO OTHER WARRANTIES ARE EXPRESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE NOISE COM IS NOT LIABLE FOR CONSEQUENTIAL DAMAGES Document M016301 Pg 32 Rev 2 2 26 03 Artisan Technology Group Qua...

Страница 26: ...OURCE RF SWITCH PROGRAMMABLE ATTENUATOR 0 127 dB BASIC RF CIRCUIT FIGURE 1 Page 29 Rev 2 2 26 03 NOISE COM INC Document M016301 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 27: ... INC 1 LOCAL 9 0 EXEC 8 DELAY 5 DEC 2 GO TO 6 STEP 3 NOISE COM LINE ON OFF RESET SIGNAL INPUT OUTPUT LAT DARK GREY NOISE COM P N 13567 Page 31 Rev 2 2 26 03 NOISE COM INC Document M016301 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 28: ...CTL 2P8T SWITCH CONTROL MICROPROCESSOR WITH RAM ROM AND EEPROM 16 BUTTON KEYPAD 4 DIGIT 7 SEGMENT DISPLAY 8 STATUS LEDS FRONT PANEL BOARD INTERFACE IEEE 488 INTERFACE RS 422 INTERFACE RS 232 INTERFACE RS 232 FIGURE 2 PAGE 30 SIGNAL OR NOISE SIGNAL OR NOISE OUTPUT Rev 2 2 26 03 NOISE COM INC Document M016301 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 29: ...quipment Have surplus equipment taking up shelf space We ll give it a new home Learn more Visit us at artisantg com for more info on price quotes drivers technical specifications manuals and documentation Artisan Scientific Corporation dba Artisan Technology Group is not an affiliate representative or authorized distributor for any manufacturer listed herein We re here to make your life easier How...

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