Keysight U2761A Mode D'emploi page 43

Output Termination
This configuration applies to output amplitude and offset voltage only. The
Keysight U2761A has a fixed series output impedance of 50 to the device
output connector. If the actual load impedance is different from the specified
value, the amplitude and offset levels will be incorrect.
– The range of the output termination is 1  to 10 k, or Infinite. The default
– The output termination setting is stored in volatile memory and upon power-off
– If you specify a 50 termination but are actually terminating into an open
– If you change the output termination setting, the output amplitude and offset
– You cannot specify the output amplitude in dBm if the output termination is
Keysight U2761A User's Guide
value is 50 .
or after a remote interface reset, the setting will return to a default value.
circuit, the actual output will be twice the value specified.
For example, if you set the offset to 100 mVDC (and specify a 50 load) but
are terminating the output into an open circuit, the actual offset will be
200 mVDC.
levels are automatically adjusted (no error will be generated).
For example, if you set the amplitude to 5 Vpp and then change the output
termination from 50 to "high impedance", the amplitude value will double to
10 Vpp. If you change from "high impedance" to 50 , the displayed amplitude
value will drop to half.
currently set to "high impedance". The units are automatically converted to
Vpp.
Features and Functions 2
43