Rigol DSA875 Manual do Utilizador descarregar pdf (Página 8)

RIGOL

DSA800 Options and Accessories

Preamplifier

PA-DSA832 (100 kHz to 3.2 GHz) / PA-DSA875 (100 kHz to 7.5 GHz) option provides

preamplifier for DSA832 / DSA875. When the signal under measurement is small,

turning on the preamplifier can reduce the displayed average noise level; therefore,

you can distinguish small signals from the noise.

Press AMPT at the front panel. Then, press RF Preamp to turn on or off the

preamplifier. An icon will be displayed on the left of the screen when the

preamplifier is on. As seen from the measurement result figures when the

preamplifier is off and on, small input signals can be measured by the analyzer when

the preamplifier is on.

PA Off

PA On

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Rigol DSA875 Manual do Utilizador Página 8