HP 54540 Series - Operating Characteristics

Vertical
Specifications and Characteristics
Operating Characteristics
Operating Characteristics
Deflection Factors All input channels: With a single screen selected,
you can adjust deflection factors from 1 mV/div to 5 V/div ina 1-2-5
sequence with the knob. You can make fully calibrated vernier
adjustments using direct keypad entry or the using the knob with Fine
selected.
Probe Attenuation Factors You can enter values from 0.9 to 1000 to
scale the oscilloscope for external probes or attenuators attached to the
channel inputs. When probe tip calibration is performed, this value is
calculated automatically. The front-panel, probe compensation output
source impedance is 500 Q, so with low probe impedances, automatic
calibration accuracy is dependent on the impedance of the probe.
Input Impedance 1 MO or 50, selectable for channels and the
external trigger.
Bandwidth Limit (HF Reject) A low-pass filter with a —3 dB point at
about 30 MHz for both triggering and signal display. You can select HF
reject for each front-panel input individually, whether vertical or external
trigger.
LF Reject A high-pass filter with a —3 dB point at about 400 Hz for the
triggering and vertical signal. You can selected LF reject for each
front-panel input individually, whether vertical or external trigger.
ac Coupling A high-pass filter with a -3 dB point at about 10 Hz for
both triggering and signal display. You can selected ac coupling for each
front-panel input individually, whether vertical or external trigger.
ECL/TTL Presets For ECL and TTL levels, you can preset the vertical
deflection factor, coupling, offset, and trigger level independently on any
vertical input channel. It is not available for the external trigger input.
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