1EF36: Level Error Calculation for Spectrum Analyzers
- Abstract
- Level or power measurement of especially modulated signals using spectrum analyzers is becoming more and more important . Whereas the first choice in terms of accuracy for power measurement of any carrier (modulated or non-modulated) is a power meter, power measurement of spurious or in the adjacent channel of a transmission system needs a selective power meter with high dynamic range. A power meter, however, is a non-selective device with limited dynamic range and is not appropriate for these types of measurements. The first choice is a spectrum analyzer because of its versatile use as a general-purpose instrument. Compared to a power meter its power measurement accuracy is worse. In general this can be overcome by substitution methods using a power meter, an attenuator and a signal generator. But substitution is time-consuming and requires more investment in test equipment than a single instrument. Therefore it is most important to have a spectrum analyzer like the FSE, which can fulfill at least most of the requirements in terms of measurement accuracy.
- Keywords
- FSE, Microwave
- Last Modified
- 13.01.1998
| File Name | Version | Last Modified | File Size | |
|---|---|---|---|---|
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1EF36_0E.pdf Application Note - English version |
13.01.1998 | 24 KBytes | ||
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ERROR.xls Excel spreadsheet for error calculation |
1 | 16.12.1997 | 33 KBytes | |
