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HP4402.book : chapt5_2.fm 4 Wed Apr 23 15:29:05 1997
Specifications
Power Meter Specifications
5-4 HP EPM-442A User’s Guide
Accuracy
Instrumentation
Absolute: ±0.02 dB (Logarithmic) or ±0.5% (Linear). (Refer to the power
sensor linearity specification in your power sensor manual to assess
overall system accuracy.)
Relative: ±0.04 dB (Logarithmic) or ±1.0% (Linear). (Refer to the power
sensor linearity specification in your power sensor manual to assess
overall system accuracy.)
Zero Set (digital settability of zero): Power sensor dependent (refer to
Table 5-1). For HP ECP-series power sensors, this specification applies
when zeroing is performed with the sensor input disconnected from the
POWER REF.
Table 5-1: Zero Set Specifications
Power Sensor Zero Set
HP 8481A ±50 nW
HP 8481B ±50 µW
HP 8481D ±20 pW
HP 8481H ±5 µW
HP 8482A ±50 nW
HP 8482B ±50 µW
HP 8482H ±5 µW
HP 8483A ±50 nW
HP 8485A ±50 nW
HP 8485D ±20 pW
HP R8486A ±50 nW
HP R8486D ±30 pW
HP Q8486A ±50 nW
HP Q8486D ±30 pW
HP W8486A ±200 nW
HP 8487A ±50 nW
HP 8487D ±20 pW
HP ECP-E18A ±50 pW
HP ECP-E26A ±50 pW