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Fluke 85RF-II 500 MHZ High Frequency Probe
-The Fluke 85RF II high frequency probe transforms a DC voltmeter into a high frequency (100 kHz to 500 MHz) AC voltmeter.
-Conversion from AC to DC is done on a one-to-one basis and includes a range of 0.25 to 30 V rms.
-The Probe's DC output is calibrated to be equal to the rms value of a sine wave input.
-The 85RF II can be used with a DC voltmeter that has an input resistance of 10 M omega, ±10%. Voltmeters with higher input resistances are usable if an external shunt is put across the input terminals.
-The shunt value is set to decrease the input resistance to 10 M omega.