Agilent Technologies EXG Bedienungsanleitung PDF herunterladen (Seite 8)

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0.5

0.4

0.3

0.2

0.1

–0.1

–0.2

–0.3

–0.4

–0.5

Elapsed time (minutes)

Delta from initial (dB)

Amplitude repeatablity +5 dBm ALC on

850 MHz

1900 MHz

2200 MHz

3500 MHz

5800 MHz

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 (such as 5 dB steps).

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 should not be confused with

absolute level accuracy.

Relative level accuracy at 850 MHz initial power +10 dBm

Final power (dBm)

Power error (dB)

0 –20 –40 -60 –80 –100 –120 –140

0.5

0.4

0.3

0.2

0.1

–0.1

–0.2

–0.3

–0.4

–0.5

Upper std dev (1 σ)

Mean

Lower std dev (1 σ)

ALC linearity 1900 MHz, CW, relative to 0 dBm

Amplitude (dB)

–20 –15 –10 –5 0 5 10

0.3

0.2

0.1

–0.1

–0.2

–0.3

Error (dB)

Upper std dev (1 σ)

Mean

Lower std dev

(1 σ )

ALC linearity 850 MHz, CW, relative to 0 dBm

Amplitude (dB)

–20 –15 –10 –5 0 5 10

0.3

0.2

0.1

–0.1

–0.2

–0.3

Error (dB)

Upper std dev (1 σ)

Mean

Lower std dev

(1 σ)

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