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

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2-42 HP-IB Programming The arbitrary messages can contain the following data. FLEX/FLEX-TD: Frame Information and Block data POCSAG: Message Codeword data In other words, the arbitrary messages cannot contain the following data, and the HP 8648A Option 1EP automatically generates these data. FLEX/FLEX-TD: Sync 1 and Sync 2 data POCSAG: Pre-amble and the Synchronization Codeword data The data of each buffer memory segment can only be entered from the external controller using the [SOURceI :PAGing [:FORMatl :(POCSIFLEXIFTD) :ARBitrary :DEFine HP-IB command. Refer to “PAGing Subsystem (Option 1EP Only)” for the details of this command usage. Note Since the arbitrary message cannot set the data rate and the modulation settings, set them using the following commands. For FLEX/FLEX-TD PAG:(FLEXlFTD>:RATE (16001320016400) DM:FORM (FSK2lFSK4) DM:DEV 4.8 KHZ DM:STAT (ONll) For POCSAG PAG:POCS:RATE (51211200124003 DM:FORM FSK2DM:DEV 3 KHZ DM:STAT (ON113 When transmitting the arbitrary message, the start and stop segment numbers of the buffer memory can be specified. The start and stop values are set in the Message Menu (START FRAME and STOP FRAME for FLEX/FLEX-TD; START BATCH and STOP BATCH for POCSAG) from the frontpanelorbythe [SOURceI :PAGing [:FORMatl :(POCSIFLEXIFTD) :ARBitrary :STARt and :STOP HP-IB commands from the external controller. For example, when the start and stop segment numbers of the buffer memory are 8 and 11 respectively, and the encoding mode is burst (the number of times is 2), the actual transmitted data is illustrated as follows. -----------------_--____________________------- Buffer Memory I 8 I 9 110 Ill I 8 I 9 110 Ill I Segment No. I _____ I _____ I _____ I _____ l-----l _____ I--_-_I_-_--1
HP-IB Capabilities The instrument is designed to be compatible with a controller that interfaces in terms of the bus codes summarized in the table. This table describes each of the interface functions that are available with this instrument as defined by the IEEE 488.2-1987. Capability 1 Code &.lker T6, TEO I Listener 1 L4, LEO Service Request 1 SRl Device Clear DC1 Device Trigger ‘Ihble 2-3. IEEE 488.2 Capabilities Full Capability Full Capability Full Capability Full Capability No Capability Full Capability No Capability No Capability Comment Tristate (1 Mbps max) HP-IB Programming 2-43
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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 (
Page 119 and 120: Memory Interface Memory Interface (
Page 121 and 122: Operation Messages Front Panel Oper
Page 123 and 124: 011 017 Amplitude exceeds ATTN HOLD
Page 125 and 126: HP-IB - Command Errors -101 -102 -1
Page 127 and 128: HP-IB Execution Errors HP-IB Device
Page 129 and 130: HP-IB Programming Background This s
Page 131 and 132: Programming Examples Examples are p
Page 133 and 134: Programming Pager 188 I~IJTF’IJT
Page 135 and 136: Command Statement Description Query
Page 137 and 138: %ble 2-1. Programming Command State
Page 139 and 140: ‘Ihble 2-1. Programming Command S
Page 141 and 142: Ftwer6e Pwmr UnspecMed Amplkde Ext.
Page 143 and 144: Example: Generate a Service Request
Page 145 and 146: Unspecified Power This instrument p
Page 147 and 148: Line 50 Clears all status registers
Page 149 and 150: ABORt Subsystem ABORt (Option 1EP O
Page 151 and 152: Note FM Subsystem To set or change
Page 153 and 154: PAGing Subsystem [SOURceI (Option 1
Page 155 and 156: The contents of data to be filled i
Page 157 and 158: Note The data to be sent by the :DE
Page 159 and 160: [SOURce] : PAGing C : FORMatI :{FLE
Page 161 and 162: [SOURceI : PAGing C : FORMat] :
Page 163 and 164: [SOURceI :PAGing [:FORMat] :(FLEXIF
Page 165 and 166: PM Subsystem [SOURceI :PM [:DEViati
Page 167 and 168: STATUS Subsystem STATUS :QUEStionab
Page 169: Changing Parameters While Encoding
Page 173 and 174: HP 8656157 Compatible Language The
Page 175 and 176: 9-0~till Code* RC RL RP RO Rl R2 R3
Page 177 and 178: Installation Unpacking Your 1. Unpa
Page 179 and 180: 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
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jA30 PAGER ENCODER (OPT 1EP) ! ,~,
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502 Service Error Messages 506 Desc
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5c-4 Service Error Messages 512 Des
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Replaceable Parts Introduction Asse
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Al AlAl AlA AlA AlA AlJl AlMPl 41MP
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w14 WI5 W16 w17 Wl8 Item able 6-1.
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I ,I/.” All MI-LO LIP12 I MP25 Fi
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A10 All Al2 Al3 Al4 Bl Fl MPl MP2 M
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Adjustments This chapter documents
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2 Crimp , Connector ( 6 ) &Pin Conn
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Internal Reference Oscillator Adjus
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Pager Encoder Timebase Frequency Ad
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AM Level and Distortion HP 86488 On
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AM Level HP 8648B/C/D Only Descript
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Detector Offset HP 8648A Only Descr
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AM Level: FE HP 8648B/C/D Only (Not
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Predistortion and Detector Offset H
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Output Level: Frequency Extension C
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A3 Motherboard Figure 7-21. Locatio
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Motherboard Audio Path All HP 8648A
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DCFM All HP 8648A/B/C/D Description
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HF Power Level Accuracy All HP 8648
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1 \ # I J @g@ ggjJ;o P~EEB~B~QH 6dB
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LF Power Level Accuracy All HP 8648
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FSK Deviation Option 1EP Only FSK D
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Service Support Software The Servic
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4. Continue with the setup by selec
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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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