![Keysight E6640A Скачать руководство пользователя страница 1609](http://html1.mh-extra.com/html/keysight/e6640a/e6640a_measurement-applications-user-and-programmer-reference_19616451609.webp)
11 Occupied Bandwidth Measurement
View/Display
View/Display
Accesses a menu of functions that enable you to set the view and display parameters for the current
measurement.
There is a single results view available for this measurement. For more details, and samples of screen
content for each supported mode, see
below.
The following result descriptions are available:
Occupied Bandwidth
The occupied bandwidth result is f2 – f1, where f1 and f2 are calculated.
Total Power
The total power is the power integrated in the specified span setting.
Transmit Freq Error
The transmit freq error (transmit frequency error) result is calculated as the difference between (f2+f1)/2
and the tuned center frequency of the signal, where f1 and f2 are calculated.
x dB Bandwidth
The x dB result is a bandwidth measured between two points on the signal which are a certain number of
dBs down from the highest signal point within the OBW Span. For example, If the ‘x dB’ parameter is set to
–26 dB, and the ‘Occupied BW Span’ is set to 10 MHz, then the maximum signal power level is first
determined from the 10 MHz wide trace sweep. Next, the two furthest frequencies below (xdb_f1) and
above (xdb_f2) the frequency of the maximum level occurrence are found where the signal level is 26 dB
below the peak level. This calculation also uses linear interpolation to find the lower and upper carrier
boundary point within the width of a sweep point (the span divided by the number of sweep points).
The x dB bandwidth is calculated to be xdb_f2 – xdb_f1.
Spectrum View
An asterisk next to the x dB bandwidth value indicates the results may not have been determined with
optimal analyzer settings. If this result (emission bandwidth) is your primary interest, select Meas Setup,
Max Hold, On. Then, change the detector mode to Peak. Acquiring peak data ensures accuracy of the
result.
For SA, WCDMA, C2K, 1xEVDO, WIMAX OFDMA, WLAN modes:
W-CDMA & HSPA Measurement Applications Reference
1609
Содержание E6640A
Страница 80: ...Table of Contents lxxx W CDMA HSPA Measurement Applications Reference ...
Страница 188: ...3 Programming the Test Set Common Commands 188 W CDMA HSPA Measurement Applications Reference ...
Страница 189: ...4 Input Output Functions Undefined variable Primary ProductName W CDMA HSPA Measurement Applications Reference 189 ...
Страница 231: ...5 Mode Functions Undefined variable Primary ProductName W CDMA HSPA Measurement Applications Reference 231 ...
Страница 256: ...5 Mode Functions Mode Setup 256 W CDMA HSPA Measurement Applications Reference ...
Страница 257: ...6 System Functions Undefined variable Primary ProductName W CDMA HSPA Measurement Applications Reference 257 ...
Страница 324: ...6 System Functions System 324 W CDMA HSPA Measurement Applications Reference ...
Страница 325: ...7 Trigger Functions Undefined variable Primary ProductName W CDMA HSPA Measurement Applications Reference 325 ...
Страница 369: ...8 Channel Power Measurement Auto Couple W CDMA HSPA Measurement Applications Reference 369 ...
Страница 376: ...8 Channel Power Measurement File File See File on page 258 376 W CDMA HSPA Measurement Applications Reference ...
Страница 389: ...8 Channel Power Measurement Marker W CDMA HSPA Measurement Applications Reference 389 ...
Страница 429: ...8 Channel Power Measurement Mode Mode See Mode on page 232 W CDMA HSPA Measurement Applications Reference 429 ...
Страница 435: ...8 Channel Power Measurement Print Print See Print on page 263 W CDMA HSPA Measurement Applications Reference 435 ...
Страница 629: ...8 Channel Power Measurement System System See System on page 264 W CDMA HSPA Measurement Applications Reference 629 ...
Страница 664: ...9 ACP Measurement Auto Couple 664 W CDMA HSPA Measurement Applications Reference ...
Страница 669: ...9 ACP Measurement BW W CDMA HSPA Measurement Applications Reference 669 ...
Страница 672: ...9 ACP Measurement File File See File on page 258 672 W CDMA HSPA Measurement Applications Reference ...
Страница 754: ...9 ACP Measurement Mode Mode See Mode on page 232 754 W CDMA HSPA Measurement Applications Reference ...
Страница 758: ...9 ACP Measurement Mode Setup Mode Setup See Mode Setup on page 251 758 W CDMA HSPA Measurement Applications Reference ...
Страница 762: ...9 ACP Measurement Print Print See Print on page 263 762 W CDMA HSPA Measurement Applications Reference ...
Страница 960: ...9 ACP Measurement System System See System on page 264 960 W CDMA HSPA Measurement Applications Reference ...
Страница 973: ...9 ACP Measurement View Display DTMB and CMMB Exciter W CDMA HSPA Measurement Applications Reference 973 ...
Страница 984: ...9 ACP Measurement View Display 984 W CDMA HSPA Measurement Applications Reference ...
Страница 1001: ...10 Spectrum Emission Mask Measurement W CDMA HSPA Measurement Applications Reference 1001 ...
Страница 1009: ...10 Spectrum Emission Mask Measurement Auto Couple W CDMA HSPA Measurement Applications Reference 1009 ...
Страница 1013: ...10 Spectrum Emission Mask Measurement File File See File on page 258 W CDMA HSPA Measurement Applications Reference 1013 ...
Страница 1090: ...10 Spectrum Emission Mask Measurement Mode Mode See Mode on page 232 1090 W CDMA HSPA Measurement Applications Reference ...
Страница 1096: ...10 Spectrum Emission Mask Measurement Print Print See Print on page 263 1096 W CDMA HSPA Measurement Applications Reference ...
Страница 1134: ...10 Spectrum Emission Mask Measurement Save 1134 W CDMA HSPA Measurement Applications Reference ...
Страница 1295: ...10 Spectrum Emission Mask Measurement System System See System on page 264 W CDMA HSPA Measurement Applications Reference 1295 ...
Страница 1332: ...10 Spectrum Emission Mask Measurement View Display 1332 W CDMA HSPA Measurement Applications Reference ...
Страница 1343: ...11 Occupied Bandwidth Measurement Auto Couple W CDMA HSPA Measurement Applications Reference 1343 ...
Страница 1350: ...11 Occupied Bandwidth Measurement File File See File on page 258 1350 W CDMA HSPA Measurement Applications Reference ...
Страница 1398: ...11 Occupied Bandwidth Measurement Mode Mode See Mode on page 232 1398 W CDMA HSPA Measurement Applications Reference ...
Страница 1404: ...11 Occupied Bandwidth Measurement Print Print See Print on page 263 1404 W CDMA HSPA Measurement Applications Reference ...
Страница 1598: ...11 Occupied Bandwidth Measurement Sweep Control 1598 W CDMA HSPA Measurement Applications Reference ...
Страница 1599: ...11 Occupied Bandwidth Measurement System System See System on page 264 W CDMA HSPA Measurement Applications Reference 1599 ...
Страница 1610: ...11 Occupied Bandwidth Measurement View Display For TD SCDMA mode only 1610 W CDMA HSPA Measurement Applications Reference ...
Страница 1611: ...11 Occupied Bandwidth Measurement View Display For Bluetooth mode only W CDMA HSPA Measurement Applications Reference 1611 ...
Страница 1620: ...11 Occupied Bandwidth Measurement View Display 1620 W CDMA HSPA Measurement Applications Reference ...
Страница 1668: ...12 Code Domain Measurement Auto Couple 1668 W CDMA HSPA Measurement Applications Reference ...
Страница 1672: ...12 Code Domain Measurement File File See File on page 258 1672 W CDMA HSPA Measurement Applications Reference ...
Страница 1762: ...12 Code Domain Measurement Mode Mode See Mode on page 232 1762 W CDMA HSPA Measurement Applications Reference ...
Страница 1766: ...12 Code Domain Measurement Mode Setup Mode Setup See Mode Setup on page 251 1766 W CDMA HSPA Measurement Applications Reference ...
Страница 1769: ...12 Code Domain Measurement Print Print See Print on page 263 W CDMA HSPA Measurement Applications Reference 1769 ...
Страница 1937: ...12 Code Domain Measurement System System See System on page 264 W CDMA HSPA Measurement Applications Reference 1937 ...
Страница 2019: ...13 Modulation Accuracy Composite EVM Measurement Auto Couple W CDMA HSPA Measurement Applications Reference 2019 ...
Страница 2350: ...13 Modulation Accuracy Composite EVM Measurement View Display 2350 W CDMA HSPA Measurement Applications Reference ...
Страница 2354: ...14 QPSK EVM Measurement 2354 W CDMA HSPA Measurement Applications Reference ...
Страница 2364: ...14 QPSK EVM Measurement Auto Couple 2364 W CDMA HSPA Measurement Applications Reference ...
Страница 2369: ...14 QPSK EVM Measurement File File See File on page 258 W CDMA HSPA Measurement Applications Reference 2369 ...
Страница 2418: ...14 QPSK EVM Measurement Mode Mode See Mode on page 232 2418 W CDMA HSPA Measurement Applications Reference ...
Страница 2422: ...14 QPSK EVM Measurement Mode Setup Mode Setup See Mode Setup on page 251 2422 W CDMA HSPA Measurement Applications Reference ...
Страница 2426: ...14 QPSK EVM Measurement Print Print See Print on page 263 2426 W CDMA HSPA Measurement Applications Reference ...
Страница 2593: ...14 QPSK EVM Measurement System System See System on page 264 W CDMA HSPA Measurement Applications Reference 2593 ...
Страница 2630: ...15 Power Control Measurement File File See File on page 258 2630 W CDMA HSPA Measurement Applications Reference ...
Страница 2677: ...15 Power Control Measurement Mode Mode See Mode on page 232 W CDMA HSPA Measurement Applications Reference 2677 ...
Страница 2682: ...15 Power Control Measurement Print Print See Print on page 263 2682 W CDMA HSPA Measurement Applications Reference ...
Страница 2849: ...15 Power Control Measurement System System See System on page 264 W CDMA HSPA Measurement Applications Reference 2849 ...