OUTPut:LOAD {50|INFinity|MINimum|MAXimum}
Select the output termination for output amplitude and offset voltage.
The function generator has a fixed output impedance of 50 ohms on the
OUTPUT terminal. You can specify whether
you are terminating the
output into a 50 ohm load or an open circuit. Incorrect impedance
matching between the function generator and your load will result in
an amplitude or offset which does not match the specified signal level.
[ Stored in volatile memory ]
INF sets the output termination to “high impedance”. MIN selects
50
W. MAX selects “high impedance”. The default is “50”.
The amplitude (or dc offset) is automatically adjusted (and no error is
generated) if you change the output termination. For example, if you
set the amplitude to 10 Vpp and then change the termination from
50 ohms to “high impedance”, the displayed amplitude will double
to 20 Vpp. If you change from “high impedance” to 50 ohms, the
displayed amplitude will drop in half.
If you specify a 50 ohm termination but are actually terminating into
an open circuit, the displayed output will be twice the value specified.
For example, if you set the offset to 100 mVdc (and specify a 50 ohm
termination) but are actually terminating the output into an open
circuit, the actual displayed offset will be 200 mVdc.
OUTPut:LOAD? [MINimum|MAXimum]
Query the output impedance. Returns “50” or “9.9E+37”.
OUTPut:SYNC {OFF|ON}
Disable or enable output from the SYNC terminal. The default is “ON”.
When the sync signal is disabled, the output level on the SYNC terminal is
indeterminate (it might be a
TTL “high” or a TTL “low”).
[ Stored in volatile memory ]
See “SYNC Signal” on page 68 in chapter 3 for more information on the
SYNC signal provided for each of the output functions.
OUTPut:SYNC?
Query the state of the SYNC terminal. Returns “0” (
OFF) or “1” (ON).
4
Chapter 4 Remote Interface Reference
Output Configuration Commands
151
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