Sets the internal bias tee current limit for the specified port. When this limit is exceeded, the Bias Tee trips (turns OFF). <port_no> is the specified internal bias tee port number 2. The query version of this command returns either the measured internal current or the set internal current limit (both are returned in milliampere units). To return the measured internal current for the specified port number, send the query command either with no value specified after the “?” (default condition) or with a value of 0 specified after the “?”. Note that the query result for the measured internal current is valid only if the Bias Tee state is set to internal. If a value of 1 is specified after the “?”, then the query version of this command returns the internal current limit that is set for the given port number.

450 mA when querying the internal current limit (:INPut<port_no>:BIAS:CURRent? 1). The default value for querying the measured current depends upon what is connected to the port.

milliampere (mA)

0 mA to 450 mA

Shift‑3 (Sweep), Configure Ports, Bias Tee Setup, Int Current Limit P2

Returns whether the internal bias tee is tripped. Returns 1 for tripped, otherwise returns 0.

NA (query only)

NA

Enables or disables the bias tee. Query returns OFF|INT. For OFF state, query returns OFF (not 0).

OFF

Shift‑3 (Sweep), Configure Ports, Bias Tee Setup, Bias Tee

Sets the voltage of the internal bias tee for the specified port number. <port_no> is the specified internal bias tee port number (currently, only port 2 is supported). The query version of this command returns either the measured internal bias tee voltage or the set internal bias tee voltage (both are returned in Volt). Note that the measured voltage can be slightly different than the set voltage depending on the load conditions. To return the last measured internal bias tee voltage for the specified port number, send the query command either with no value specified after the “?” (default condition) or with a value of 0 specified after the “?”. Note that the query result for the measured internal bias tee voltage is valid only if the Bias Tee state is set to internal. If a value of 1 is specified after the “?”, then the query version of this command returns the internal bias tee voltage that was set for the given port number.

+ 12 V when querying the internal bias tee voltage that was set (:INPut<port_no>:BIAS:VOLTage? 1). The default value for querying the last measured bias tee voltage may be slightly different depending upon what is connected to the port.

Volt

12 V to 32 V

Shift‑3 (Sweep), Configure Ports, Bias Tee Setup, Int Voltage P2