Specifications

5-29
System Command Reference Section
Error Detector CLOCK IN
Error Detector CLOCK IN
The SENSE2 and INPUT2 commands control the configuration of or indicate the status of
the error detector's CLOCK IN port.
SENSe2:FREQuency?
SENSe2 FREQ?
SENSe2:FREQ:CW?
SENSe2:FREQ:FIXed?
Any of the above query command forms returns the frequency of the signal at the error
detector clock input.
SENSe2:BANDswitch?
The response to “SENSe2:BANDswitch?” is an integer in the range 0…3 indicating the
frequency band configured by the error detector.
The response should be interpreted within the controller to mean:
0 a through (non-band limited) clock path is configured due to the measured
input frequency being out of range or unstable. In this configuration no
user adjustment of the clock to data delay is available.
1 the configured clock path has a 0.1 GHz to 3.1 GHz pass band.
2 the configured clock path has a 2.9 GHz to 6.1 GHz pass band.
3 the configured clock path has a 5.9 GHz to 13.1 GHz pass band.
Whenever the Agilent 71612 is to be used at a number of frequencies, the functions
embodied in the BASIC language example given in Clock Stabilization on page 9-2
should be employed.
INPut2:TERMination <numeric value>
This node permits the input termination level to be set to 0 Volts (ground) or −2 Volts.
INPut2
:TERMination <numeric value>
TERMination? <NR1>
If input termination and zero-to-one threshold level are to be set up, then the input
termination should be set up first.
The *RST selection is 0 V.