HP 8648 A/B/C/D - Changpuak.ch

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Replaceable Parts Introduction Assembly Replacements Note To order parts, contact your local Hewlett-Packard sales and service office. A list of the offices is given on page v, at the front of this book. In the U.S.A. it is also possible to call 800-227-8164 and they will take your parts order. If you need help finding the correct part number, you can call HP Parts Identification at 916-783-0804 in the U.S.A. For most parts, you can either order a new assembly or an exchange assembly. Exchange assemblies are factory repaired, inspected, and tested. If you order an exchange assembly you must return the defective assembly part. After the removal or replacement of assemblies, it may be necessary to perform related adjustments and performance test procedures prior to calibrating the signal generator. For more information, refer to “Post Repair,” located in Chapter 5 of this manual. This section provides tables describing the assemblies and their related procedures. 6 Replaceable Parts 6-1
OP TION lEP/lE2 \ \ I W15/W18 \ \ \ \ \\v- 1 NOTE: ’ I Al REAR VIEW Al MPI W15 on Option 1EP AIJI W18 on Option lE2 (4 Places) A3J 1 P8 (4 Places) MP15 (2 Places) HP 8648A Replaceable Parts.
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Operation and Service Guide HP 8648
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Certification Warranty Hewlett-Pack
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Instrument Support Center Hewlett-P
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General Safety Considerations Warni
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Contents 1. Operation Quick Overvie
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Message During Servicing . . . . .
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POWer Subsystem . . . . . . . . . .
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AM Modulator . . . . . . . . . . .
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Figures 2-l. HP 8648 Status Registe
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7-68. Using the Open Dialog Box to
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8-29. AM Accuracy Performance Test
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Operation “Operation” contains
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The following table describes the p
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7. Modulation Source Press CMOD ON/
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Operation Examples This section pro
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Turn on the RF Output 3. Press C-1
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Using the Increment 3. Enter a freq
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Saving Instrument In this ten step
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egseq9.dw la-l 0 Operation Examples
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I Deleting a Register In this examp
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Renumbering the In this example, yo
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Inserting a Register in In this exa
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Offsetting the RF Output from a Ref
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la-20 Operation Examples 6. Change
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la-22 Operation Examples Adjusting
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Setting the Modulated 2. Press the
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Setting Up Pager The following step
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Selecting the Data 3. Set DATA RATE
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Selecting the Pager Capcode (Addres
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Selecting the Roaming 11. Set ROAMI
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Frequency/Amplitude Frequency and A
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Function Function hmckeys.drw 1. FR
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Function Setting Up the Pager Encod
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Function Setting the Format The for
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Function lb-10 Operation Reference
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Function I- / I I / 1’gMRl 0 non
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Function 1 b-22 Operation Reference
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Function mmiii\ FREQUENCY 1 b-32 Op
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Function PN15 Setting the Data Rate
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Pulse Modulation Pulse Modulation N
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Increment Set Increment Set 1 b-38
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1 b-40 Operation Reference 2. Backs
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Instrument Preset lb-42 Operation R
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Instrument Preset 1 b-44 Operation
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Memory Memory The memory keys allow
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Memory 3. Register Recall The recal
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Modulation Source Modulation Source
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Modulation Source Note 5. EXT AC EX
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RF output RF Output 1. RF ON/OFF Pr
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Rear Panel Operation Rear Panel 1.
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Remote Interface Remote Interface (
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Memory Interface Memory Interface (
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Operation Messages Front Panel Oper
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011 017 Amplitude exceeds ATTN HOLD
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HP-IB - Command Errors -101 -102 -1
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HP-IB Execution Errors HP-IB Device
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HP-IB Programming Background This s
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Programming Examples Examples are p
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Programming Pager 188 I~IJTF’IJT
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Command Statement Description Query
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%ble 2-1. Programming Command State
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‘Ihble 2-1. Programming Command S
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Ftwer6e Pwmr UnspecMed Amplkde Ext.
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Example: Generate a Service Request
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Unspecified Power This instrument p
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Line 50 Clears all status registers
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ABORt Subsystem ABORt (Option 1EP O
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Note FM Subsystem To set or change
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PAGing Subsystem [SOURceI (Option 1
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The contents of data to be filled i
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Note The data to be sent by the :DE
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[SOURce] : PAGing C : FORMatI :{FLE
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[SOURceI : PAGing C : FORMat] :
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[SOURceI :PAGing [:FORMat] :(FLEXIF
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PM Subsystem [SOURceI :PM [:DEViati
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STATUS Subsystem STATUS :QUEStionab
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Changing Parameters While Encoding
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HP-IB Capabilities The instrument i
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HP 8656157 Compatible Language The
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9-0~till Code* RC RL RP RO Rl R2 R3
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Installation Unpacking Your 1. Unpa
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Replacing the Fuse If a fuse failur
Page 181 and 182: Turning On the Signal Generator Con
Page 183 and 184: Specifications Options This chapter
Page 185 and 186: output 10 MHZ, typically > 0.5 Vm l
Page 187 and 188: Nonharmonics (2 5 kHz offset, < + 4
Page 189 and 190: Resolution < 2001 MHz 2 2001 MHz De
Page 191 and 192: Environmental Operating temperature
Page 193 and 194: output Front Panel BNC Nominally 1
Page 195 and 196: Regulatory Information IS0 9002 Com
Page 197 and 198: Service Ship]ping Your This chapter
Page 199 and 200: Instrument rrequency Counter +equen
Page 201 and 202: Post-Repair ‘able 5-2. Adjustment
Page 203 and 204: ‘Ihble 5-3. Adjustments and Perfo
Page 205 and 206: Theory of Operation Introduction Us
Page 207 and 208: Overview The HP 8648A/B/C/D signal
Page 209 and 210: A2 Power Supply The power supply is
Page 211 and 212: A6 Output (HP 8648A) The output ass
Page 213 and 214: A 13 Pulse Modulator (HP 8648B/C/D
Page 215 and 216: Troubleshooting Checklist 0 Li Ll D
Page 217 and 218: Modulation Test Points and Power Su
Page 220: jA30 PAGER ENCODER (OPT 1EP) ! ,~,
Page 224 and 225: 502 Service Error Messages 506 Desc
Page 226 and 227: 5c-4 Service Error Messages 512 Des
Page 234 and 235: Al AlAl AlA AlA AlA AlJl AlMPl 41MP
Page 236 and 237: w14 WI5 W16 w17 Wl8 Item able 6-1.
Page 238 and 239: I ,I/.” All MI-LO LIP12 I MP25 Fi
Page 240 and 241: A10 All Al2 Al3 Al4 Bl Fl MPl MP2 M
Page 242 and 243: Adjustments This chapter documents
Page 244 and 245: 2 Crimp , Connector ( 6 ) &Pin Conn
Page 246 and 247: Internal Reference Oscillator Adjus
Page 248 and 249: Pager Encoder Timebase Frequency Ad
Page 250 and 251: AM Level and Distortion HP 86488 On
Page 252 and 253: AM Level HP 8648B/C/D Only Descript
Page 254 and 255: Detector Offset HP 8648A Only Descr
Page 256 and 257: AM Level: FE HP 8648B/C/D Only (Not
Page 258 and 259: Predistortion and Detector Offset H
Page 260 and 261: Output Level: Frequency Extension C
Page 262 and 263: A3 Motherboard Figure 7-21. Locatio
Page 264 and 265: Motherboard Audio Path All HP 8648A
Page 266 and 267: DCFM All HP 8648A/B/C/D Description
Page 268 and 269: HF Power Level Accuracy All HP 8648
Page 270 and 271: 1 \ # I J @g@ ggjJ;o P~EEB~B~QH 6dB
Page 272 and 273: LF Power Level Accuracy All HP 8648
Page 274 and 275: FSK Deviation Option 1EP Only FSK D
Page 276 and 277: Service Support Software The Servic
Page 278 and 279: 4. Continue with the setup by selec
Page 280 and 281: Note 8. Continue with the setup by
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emember, you must restart MS Window
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2. Once the User Information dialog
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d. Select the Add button to add the
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Running the Tests and Adjustments ,
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Printing the Test and Adjustment Re
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. In the Password field (item 2), t
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in measurements using the power sen
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Editing Test Equipment Editing of t
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j&tapsckt... Test Equipment... Prin
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Removing Device Drivers Removal of
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Figure 7-63. Adding a Test Driver U
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Adding Datapacks The addition of da
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Removing Datapacks Removal of datap
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HP-IB Address In the HP8648 Motherb
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FhRud hth Ih* PDllam 0°C 1 you ham
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Caution “lea tdaMtion , RoEoed -
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Performance lksts Calibration Cycle
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HP 438 Power Meter Instrumentation
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Performance Tkst Descriptions The p
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Connect the Test Equipment Note Con
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HP 8648B/C/D Option lE2 Only Connec
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‘l&t Record HP 8648BKYD Only Conn
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AM Accuracy Performance Tkst (Optio
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Phase Modulation Distortion Perform
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Residual FM Performance Test Connec
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Harmonics Performance Tkst Connect
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DC FM Frequency Error Performance T
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Configure the HP 8648 1. Turn the R
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‘I&ble 8-1. High Power Level Accu
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Pulse Modulation Rise Time Performa
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Pager Encoder Timebase Accuracy Per
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Note FSK Deviation Accuracy Perform
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Symbol 0 0 0=0-Q Marker Desired Dev
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Internal Timebase: Aging Rate Perfo
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Measure the Phase Change Time Note
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Power Level Accuracy Performance Te
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HP 8648A ‘l&t Record ‘lhble 8-3
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‘able 8-5. FM Accuracy Performanc
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‘Ihble 8-7. FM Distortion Perform
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Amplitude (am) -6 HP 8648A Test Rec
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EIP 8648A Test Record Table 8-9. AM
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RF Frequency HP 8648A (MW 10 100 24
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Amplitude WW 4 -6 ‘able 8-14. Spu
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HP 8648A Test Record Note If the au
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EIP 8648A Test Record ‘able 8-16.
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Frequency NW 999.9 HP 8648A Test Re
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HP 8648B ‘I&t Record ‘able 8-20
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RF Frequency HP 8648B WW 1500 1500
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HP 8648B Test Record ‘Ihble 8-26.
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HP 8648B Test Record ‘I’kble 8-
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BP 8648B Test Record ‘Ihble 8-29.
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IIP 8648B Test Record ‘Ihble 8-31
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‘Ihble 8-35. Spurious Performance
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EIP 8648B Test Record Note If the a
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Frequency WW 400 HP 8648B Test Reco
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HP 8648B Test Record ‘able 8-37.
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HP 8648B Test Record If the automat
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HP 8648B Test Record ‘Ihble S-43.
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HP 8648C Test Record I%ble 8-46. HP
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HP 8648C Test Record 8-88 Performan
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FIP 8648C Test Record E-90 Performa
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HP 8648C Test Record 8-l 00 Perform
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HP 8648C Test Record E-102 Performa
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HP 8648C Test Record E-104 Performa
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BP 8648C Test Record Note If the au
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IIP 8648C Test Record E-108 Perform
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ElP 8648D Test Record ‘Ihble 8-71
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HP 8648D Test Record I I I I 1500 1
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HP 8648D Test Record RF Frequency H
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HP 8648D Test Record 8-l 16 Perform
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EIP 8648D Test Record 8-l 18 Perfor
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HP 8648D Test Record 8.120 Performa
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EIP 8648D Test Record 8-l 24 Perfor
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HP 8648D Test Record 8-128 Performa
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HP 8648D Test Record 8.130 Performa
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Supplemental Verification Tksts The
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CW Frequency Accuracy Supplemental
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Test Record 9 kHz RF’ Level Accur
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Index A Al theory of operation, 5a-
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computer requirements, 7-35 configu
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INT 1 kHz, lb-51 INT 400 Hz, lb-51
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HP 8648B/C/D, 5-5 power, 3-2 cable,
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T service information, 5-l support
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U uninstalling the software, 7-41 u
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HP 8648 A/B/C/D - Changpuak.ch

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