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5.4
Input Impedance
Specifications
DC 50Ω ±1.0 %
EXT DC 50Ω ±1.0 %
DC 1MΩ ±1.0%
EXT 1MΩ ±1.0 %
AC 1.2MΩ ±1.0%
The impedance values for 50Ω coupling are measured with a high precision digital
multimeter. The DMM is connected to the DSO in 4 wire configuration (input and sense),
allowing for accurate measurements.
5.4.1 Channel Input Impedance
a. DC 50Ω
Recall Input Impedance - 50 ohm x1.lss or configure the DSO :
Panel Setups
Channels Trace ON
Input Coupling
Input gain
Time base
Trigger mode
Rev. D Sept 2007
:
Recall FROM DEFAULT SETUP
Channel 1, Channel 2, Channel 3 & Channel 4
:
DC 50Ω on all 4 Channels
:
20 mV/div. on all 4 Channels
50 ηsec/div.
:
:
Auto
Performance Verification 5-3
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Troubleshooting
