6 Input/Output
6.1 RF Source
port bank is occupied by Input”
Lastly, if RF3 is present, and RF4 is absent, a mmWave port cannot be selected as an Output if the
Input Port is occupied by wwWave Transceiver with a different frequency range. If the SCPI command
is sent for this situation an error is generated, -221 “Settings conflict; Output Port is not available
while occupied by Input of incompatible frequency”
Ports GEN and TR are only available.in modular analyzers, and only when the M9470A module is
installed, such as in M8920A. Option HDX is required to enable the T/R port
When any output is selected in a measurement that does not support it, the "No result; Meas invalid
with this output" error condition occurs, and the measurement returns invalid data when queried
Preset Unaffected by Mode Preset, but set to default by Source Preset or Restore System Defaults -> All
State Saved Saved in State
Backwards
Compatibility SCPI
:FEED:RF:PORT:OUTPut IFIO1
IFIO1 is treated as IFO1 and sets the IF output to be the port labeled DUT IF Out on the CIU rear
panel. This is for compatibility with earlier implementations on EXM and VXT when using the E7770A
Common Interface Unit
Port Options
Value Notes
RF Output
RFOut
On EXM with hardware M9430A, if RF Output is selected as RF Output Port, use the settings in the Half
Duplex Config menu to determine which port (RFIO3 or RFIO4) will be used
On EXM with hardware M9431A, this setting is not supported. If the SCPI command is sent with this
setting, an error is generated, -221, “Settings conflict; option not installed”
RFHD
RFHD port is exclusive for RF Input and RF Output. If HD Port is chosen as RF Input port, pressing this
key, or sending SCPI to set it, generates error message: “-221, Settings conflict; RFHD is being used as
RF Input Port”
Option HDX is required to enable RFHD port
RFFD
Option FDX is required to enable RFFD port
GEN
Selects the Gen port on M8920A/20B
T/R
TR
Selects the T/R port on M8920A/20B
RRHhRFHDp
Used to select a port on a Radio Head (such as the Keysight M1740A mmWave Transceiver) as an
output
RRHhRFHDp corresponds to Head h, port RF Tx/Rx p. For example, RRH1RFHD2 = the port labeled RF
Tx/Rx 2 on Head 1
6.1.3 Half Duplex Output Port
Specifies whether RFIO3 or RFIO4 is the Half Duplex Output port.
Remote Command
[:SENSe]:HDUPlex:PORT:OUTPut RFIO3 | RFIO4
1923 Short Range Comms & IoT Mode User's &Programmer's Reference
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