HP Saw E4419B Manual do Utilizador descarregar pdf (Página 87)

HP4402.book : chapter2.fm 47 Fri Feb 12 15:32:45 1999

Power Meter Operation

Setting Measurement Limits

HP E4419B User’s Guide 2-47

Figure 2-12: Limits Checking Application

Figure 2-13: Limits Checking Results

In this application a swept frequency signal is applied to the input of the

Device Under Test. The power meter measures the output power. The

limits have been set at +4 dBm and +10 dBm. A fail occurs each time the

output power is outside these limits as shown in Figure 2-12.

Setting Window Limits

The power meter can be conﬁgured to verify the current measurement in

either window against predeﬁned upper and/or lower limit values. The

range of values that can be set for the upper and lower limits and the

Power Meter

Swept Source

CHANNEL A

INPUT

OUT

Device

Under Test

OUT

+4 dBm

+10 dBm

Amplitude

Frequency

Fail

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HP Saw E4419B Manual do Utilizador Página 87