Specifications for Frequency and Power Characteristics
Repeatability and linearity
Repeatability | Repeatability |
1900 MHz CW, 5 dBm, attenuator hold On, ALC On | 1900 MHz CW, 5 dBm, attenuator hold Off, ALC Off |
0.1 |
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| 0.5 |
0.09 |
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| Typical unit | 0.45 |
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0.08 |
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| Limits | 0.4 |
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0.07 |
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| 0.35 |
0.06 |
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| 0.3 |
0.05 |
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| 0.25 |
0.04 |
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| 0.2 |
(dB)Powererror |
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| (dB)errorPower |
0.03 |
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| 0.15 |
0.02 |
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| 0.10 |
0.01 |
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| 0.05 |
0 |
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| 0 |
0 | 20 | 40 | 60 | 80 | 100 | 120 |
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0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
Elapsed time (minutes) | Elapsed time (minutes) |
Repeatability measures the ability of the instrument to return to a given power setting after a random excursion to any other frequency and power setting. It is a relative measurement that reflects the difference in dB between the maximum and minimum power readings for a given setting over a specific time interval. It should not be confused with absolute power accuracy, which is measured in dBm.1
Relative level accuracy
Initial power 7 dBm
| 0.4 |
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| Lower limit |
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| 0.3 | Lower STD deviation |
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| Mean |
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| Upper STD deviation |
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| 0.2 | Upper limit |
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| 0.1 |
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(dB) | 0 |
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error |
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Power |
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| 0 |
Final power (dBm)
Relative level accuracy measures the accuracy of a step change from any power level to any other power level. This is useful for large changes (i.e. 5 dB steps).1
1. Repeatability and relative level accuracy are typical for all frequency ranges.
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