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

More documents

Recommendations

Info

Internal Timebase: Aging Rate Performance Tkst (Option lE5 Only) Internal Timebase: Aging Rate Performance Test (Option lE5 Only) Description This procedure checks the accuracy of the internal timebase. The time required for a specific phase change is measured both before and after a specified waiting period. The aging rate is inversely proportional to the absolute value of the difference in the measured times. The overall accuracy of the internal timebase is a function of: TBC &AR fTE fLE where: TBC = timebase calibration TE = temperature effects AR = aging rate LE = line effects After the timebase is adjusted, the timebase frequency should stay within the aging rate if the following things happen: The timebase oven does not cool down. The instrument keeps the same orientation with respect to the earth’s magnetic field. The instrument stays at the same altitude. The instrument does not receive any mechanical shock. If the timebase oven cools (the instrument power switch is set to off), you may have to readjust the timebase frequency after a new warm-up cycle. Typically, however, the timebase frequency returns to within f 1 Hz of the original frequency. Note The internal timebase can be tested after reconnecting AC power for 10 minutes, but for best accuracy, test again after the instrument has been on for 24 hours. Frequency changes due either to a change in orientation with respect to the earth’s magnetic field, or to a change in altitude, usually go away when the instrument is returned to its original position. A frequency change due to mechanical shock usually appears as a fixed frequency error. Performance Tests 8-35
Internal Timebase: Aging Rate Performance Test (Option lE5 Only) Connect the Test Equipment 8-36 Performance Tests Note Configure the Oscilloscope OSCILLOSCOPE ;ANNEL l) FHANNEL 2, LJNJNR8~~~: 1 4 ;~TPUT PORT 1 OUTPUT II I II PR I MARY FREQUENCY STANDARD Figure S-22. Internal Timebase: Aging Rate Test Setup 1. Connect the equipment as shown in Figure 8-22. an68obc 2. Preset all instruments and let them warm up for at least one hour. If the oscilloscope does not have a 50 61 input impedance, connect channel 1 through a 50 62 feedthrough. On the oscilloscope, adjust the external triggering for a display of the 10 MHz REF OUTPUT signal from the synthesizer. 1. Channel 1: Display: On Volts/Division: 500 mV Input Coupling: dc Input Impedance: 50 D (or use a 50 D feedthrough) 2. Channel 2: Display: Off Input Coupling: dc Input Impedance: 50 D (or use a 50 62 feedthrough) 3. Timebase: Time/Division: 5 ns
Page 1 and 2:
Operation and Service Guide HP 8648
Page 3 and 4:
Certification Warranty Hewlett-Pack
Page 5 and 6:
Instrument Support Center Hewlett-P
Page 7 and 8:
General Safety Considerations Warni
Page 9 and 10:
Contents 1. Operation Quick Overvie
Page 11 and 12:
Message During Servicing . . . . .
Page 13 and 14:
POWer Subsystem . . . . . . . . . .
Page 15 and 16:
AM Modulator . . . . . . . . . . .
Page 17 and 18:
Figures 2-l. HP 8648 Status Registe
Page 19 and 20:
7-68. Using the Open Dialog Box to
Page 21 and 22:
8-29. AM Accuracy Performance Test
Page 23 and 24:
Operation “Operation” contains
Page 25 and 26:
The following table describes the p
Page 27 and 28:
7. Modulation Source Press CMOD ON/
Page 29 and 30:
Operation Examples This section pro
Page 31 and 32:
Turn on the RF Output 3. Press C-1
Page 33 and 34:
Using the Increment 3. Enter a freq
Page 35 and 36:
Saving Instrument In this ten step
Page 37 and 38:
egseq9.dw la-l 0 Operation Examples
Page 39 and 40:
I Deleting a Register In this examp
Page 41 and 42:
Renumbering the In this example, yo
Page 43 and 44:
Inserting a Register in In this exa
Page 45 and 46:
Offsetting the RF Output from a Ref
Page 47 and 48:
la-20 Operation Examples 6. Change
Page 49 and 50:
la-22 Operation Examples Adjusting
Page 51 and 52:
Setting the Modulated 2. Press the
Page 53 and 54:
Setting Up Pager The following step
Page 55 and 56:
Selecting the Data 3. Set DATA RATE
Page 57 and 58:
Selecting the Pager Capcode (Addres
Page 59 and 60:
Selecting the Roaming 11. Set ROAMI
Page 61 and 62:
Frequency/Amplitude Frequency and A
Page 63 and 64:
Function Function hmckeys.drw 1. FR
Page 65 and 66:
Function Setting Up the Pager Encod
Page 67 and 68:
Function Setting the Format The for
Page 69 and 70:
Function lb-10 Operation Reference
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Function I- / I I / 1’gMRl 0 non
Page 79 and 80:
Page 81 and 82:
Function 1 b-22 Operation Reference
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Function mmiii\ FREQUENCY 1 b-32 Op
Page 93 and 94:
Function PN15 Setting the Data Rate
Page 95 and 96:
Pulse Modulation Pulse Modulation N
Page 97 and 98:
Increment Set Increment Set 1 b-38
Page 99 and 100:
1 b-40 Operation Reference 2. Backs
Page 101 and 102:
Instrument Preset lb-42 Operation R
Page 103 and 104:
Instrument Preset 1 b-44 Operation
Page 105 and 106:
Memory Memory The memory keys allow
Page 107 and 108:
Memory 3. Register Recall The recal
Page 109 and 110:
Modulation Source Modulation Source
Page 111 and 112:
Modulation Source Note 5. EXT AC EX
Page 113 and 114:
RF output RF Output 1. RF ON/OFF Pr
Page 115 and 116:
Rear Panel Operation Rear Panel 1.
Page 117 and 118:
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 and 170:
Changing Parameters While Encoding
Page 171 and 172:
HP-IB Capabilities The instrument i
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
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 228 and 229:
Page 230 and 231:
Page 232 and 233:
Replaceable Parts Introduction Asse
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
Page 282 and 283:
emember, you must restart MS Window
Page 284 and 285:
2. Once the User Information dialog
Page 286 and 287:
d. Select the Add button to add the
Page 288 and 289:
Running the Tests and Adjustments ,
Page 290 and 291:
Printing the Test and Adjustment Re
Page 292 and 293:
. In the Password field (item 2), t
Page 294 and 295:
in measurements using the power sen
Page 296 and 297:
Editing Test Equipment Editing of t
Page 298 and 299: j&tapsckt... Test Equipment... Prin
Page 300 and 301: Removing Device Drivers Removal of
Page 302 and 303: Figure 7-63. Adding a Test Driver U
Page 304 and 305: Adding Datapacks The addition of da
Page 306 and 307: Removing Datapacks Removal of datap
Page 308 and 309: HP-IB Address In the HP8648 Motherb
Page 310 and 311: FhRud hth Ih* PDllam 0°C 1 you ham
Page 312 and 313: Caution “lea tdaMtion , RoEoed -
Page 314 and 315: Performance lksts Calibration Cycle
Page 316 and 317: HP 438 Power Meter Instrumentation
Page 318 and 319: Performance Tkst Descriptions The p
Page 320 and 321: Connect the Test Equipment Note Con
Page 322 and 323: HP 8648B/C/D Option lE2 Only Connec
Page 324 and 325: ‘l&t Record HP 8648BKYD Only Conn
Page 326 and 327: AM Accuracy Performance Tkst (Optio
Page 328 and 329: Phase Modulation Distortion Perform
Page 330 and 331: Residual FM Performance Test Connec
Page 332 and 333: Harmonics Performance Tkst Connect
Page 334 and 335: DC FM Frequency Error Performance T
Page 336 and 337: Configure the HP 8648 1. Turn the R
Page 338 and 339: ‘I&ble 8-1. High Power Level Accu
Page 340 and 341: Pulse Modulation Rise Time Performa
Page 342 and 343: Pager Encoder Timebase Accuracy Per
Page 344 and 345: Note FSK Deviation Accuracy Perform
Page 346 and 347: Symbol 0 0 0=0-Q Marker Desired Dev
Page 350 and 351: Measure the Phase Change Time Note
Page 352 and 353: Power Level Accuracy Performance Te
Page 354 and 355: HP 8648A ‘l&t Record ‘lhble 8-3
Page 356 and 357: ‘able 8-5. FM Accuracy Performanc
Page 358 and 359: ‘Ihble 8-7. FM Distortion Perform
Page 360 and 361: Amplitude (am) -6 HP 8648A Test Rec
Page 362 and 363: EIP 8648A Test Record Table 8-9. AM
Page 364 and 365: RF Frequency HP 8648A (MW 10 100 24
Page 366 and 367: Amplitude WW 4 -6 ‘able 8-14. Spu
Page 368 and 369: HP 8648A Test Record Note If the au
Page 370 and 371: EIP 8648A Test Record ‘able 8-16.
Page 372 and 373: Frequency NW 999.9 HP 8648A Test Re
Page 374 and 375: HP 8648B ‘I&t Record ‘able 8-20
Page 376 and 377: RF Frequency HP 8648B WW 1500 1500
Page 378 and 379: HP 8648B Test Record ‘Ihble 8-26.
Page 380 and 381: HP 8648B Test Record ‘I’kble 8-
Page 382 and 383: BP 8648B Test Record ‘Ihble 8-29.
Page 384 and 385: IIP 8648B Test Record ‘Ihble 8-31
Page 386 and 387: ‘Ihble 8-35. Spurious Performance
Page 388 and 389: EIP 8648B Test Record Note If the a
Page 390 and 391: Frequency WW 400 HP 8648B Test Reco
Page 392 and 393: HP 8648B Test Record ‘able 8-37.
Page 394 and 395: HP 8648B Test Record If the automat
Page 396 and 397: HP 8648B Test Record ‘Ihble S-43.
Page 398 and 399:
HP 8648C Test Record I%ble 8-46. HP
Page 400 and 401:
HP 8648C Test Record 8-88 Performan
Page 402 and 403:
FIP 8648C Test Record E-90 Performa
Page 404 and 405:
Page 406 and 407:
Page 408 and 409:
Page 410 and 411:
Page 412 and 413:
HP 8648C Test Record 8-l 00 Perform
Page 414 and 415:
HP 8648C Test Record E-102 Performa
Page 416 and 417:
HP 8648C Test Record E-104 Performa
Page 418 and 419:
BP 8648C Test Record Note If the au
Page 420 and 421:
IIP 8648C Test Record E-108 Perform
Page 422 and 423:
ElP 8648D Test Record ‘Ihble 8-71
Page 424 and 425:
HP 8648D Test Record I I I I 1500 1
Page 426 and 427:
HP 8648D Test Record RF Frequency H
Page 428 and 429:
HP 8648D Test Record 8-l 16 Perform
Page 430 and 431:
EIP 8648D Test Record 8-l 18 Perfor
Page 432 and 433:
HP 8648D Test Record 8.120 Performa
Page 434 and 435:
Page 436 and 437:
EIP 8648D Test Record 8-l 24 Perfor
Page 438 and 439:
Page 440 and 441:
HP 8648D Test Record 8-128 Performa
Page 442 and 443:
HP 8648D Test Record 8.130 Performa
Page 444 and 445:
Supplemental Verification Tksts The
Page 446 and 447:
CW Frequency Accuracy Supplemental
Page 448 and 449:
Page 450 and 451:
Page 452 and 453:
Test Record 9 kHz RF’ Level Accur
Page 454 and 455:
Index A Al theory of operation, 5a-
Page 456 and 457:
computer requirements, 7-35 configu
Page 458 and 459:
INT 1 kHz, lb-51 INT 400 Hz, lb-51
Page 460 and 461:
HP 8648B/C/D, 5-5 power, 3-2 cable,
Page 462 and 463:
T service information, 5-l support
Page 464:
U uninstalling the software, 7-41 u
show all

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

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?