Teledyne LeCroy HFP1500 - Manual (Page 21)

Operator’s Manual
922252-00 Rev A 15
The HFP1500 has true offset capability. This allows you to remove a DC bias voltage from the input
signal while maintaining DC coupling. By using probe offset rather than the ’position’ control on the
oscilloscope, the full dynamic range of the probe remains centered around the offset level,
preventing the oscilloscope from being overdriven and causing inaccurate measurements.
Figure 2
Dynamic Range and Offset Effects
With ±8 V dynamic range and ±12 V offset, the HFP1500 has a measurement range of ±20 V.
When the HFP1500 is used with a Teledyne LeCroy oscilloscope equipped with ProBus interface, the
probe offset is controlled with the channel OFFSET knob.
NOTE: At higher frequencies the maximum linear input voltage is reduced. Refer to Specifications,
for the derating curve.
Probe offset is controlled with the channel OFFSET knob in LC series oscilloscopes with software
version 8.7.0 or higher. The current offset is displayed above the graticule for a few seconds after a
change has been made.