6 Input/Output
6.1 RF Source
When using VXT M9410A/11A/15A/16A with Remote Radio Heads (such as the
Keysight M1740A mmWave Transceiver for 5G), the choices in the dropdown menu
appear as:
Head h RFHD p
For example, if you have two Radio Heads (numbered 1 and 2), each of which have
two RF half-duplex ports, the choices for these ports will appear as below:
Head and Port Choice in dropdown SCPI parameter
Head 1, port RF Tx/Rx 1 Head 1 RFHD 1 RRH1RFHD1
Head 1, port RF Tx/Rx 2 Head 1 RFHD 2 RRH1RFHD2
Head 2, port RF Tx/Rx 1 Head 2 RFHD 1 RRH2RFHD1
Head 2, port RF Tx/Rx 2 Head 2 RFHD 2 RRH2RFHD2
When using the E7770A Common Interface Unit, outputs may come from the DUT IF
OUT ports on the rear of the CIU or the half-duplex ports on the front of the CIU
labeled DUT IF In/Out. You would select GUI parameter IF Out n or SCPI parameter
IFOutn for the DUT IF OUT ports or GUI parameter IFHD n or SCPI parameter IFHDn
for the DUT IF In/Out ports. See "RF Input Port" on page 2035 “Parameters for VXT
M9410A/11A/15A/16A and EXM when used with Radio Heads/CIU” for more
details.
Remote Command
[:SENSe]:FEED:RF:PORT:OUTPut RFOut | RFIO1 | RFIO2 | RFIO3 | RFIO4 | RFHD |
RFFD | A1 | A2 | A3 | B1 | B2 | B3 | IFIO1 | IFIO2 | GEN | TR | RRHhRFHDp |
IFOutn | IFHDn | NONE
For details of each option, see "Port Options" on page 1923
[:SENSe]:FEED:RF:PORT:OUTPut?
Example Set output to RF Output:
:FEED:RF:PORT:OUTP RFO
Set output to Radio Head 1, RF Tx/Rx Port 2:
:FEED:RF:PORT:OUTP RRH1RFHD2
Dependencies Only appears in models that support multiple output ports. If the SCPI command is sent with
unsupported parameters in any other model, an error is generated, -221, “Settings conflict; option not
installed”
RFHD and RFFD are only available on VXT. Option HDX is required to enable RFHD port. Option FDX is
required to enable RFFD port
For E7760B: Ports IFIO1 and IFIO2 are available if Option RF2 is installed. Ports A1, A2, A3, B1, B2, B3
are available if Option RF3 is installed. Attempting to select a port for which the option is not present
generates the error, -241, “Hardware missing; Output not available”
A port cannot be selected as an Output while it is occupied as an Input. If the SCPI command is sent
while the port is occupied, an error is generated, -221, “Settings conflict; Output Port is not available
while occupied by Input”
Additionally, the mmWave ports are divided into two banks: the A Bank and the B Bank. A port cannot
be selected as an Output if any port on the same bank is occupied as an Input. If the SCPI command is
sent for this situation, an error is generated, -221 “Settings conflict; Output Port is not available while
Short Range Comms & IoT Mode User's &Programmer's Reference 1922
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