Anritsu ML2437A - CFVAL Current Cal Factor Value; CHCFG (Channel Input Configuration)

GPIB Operation ML24xxA Native Commands
ML2437A/38A OM/PM PN: 10585-00001 Rev. P 8-27
CFVAL Current cal factor value
CHCFG (Channel input configuration)
Syntax: CFVAL<s>
s: A or B
Remarks: Returns the cal factor value currently being used for the specified
sensor. This will be a fixed value only when in MANUAL cal factor
mode, otherwise the value will depend on the frequency entered when
cal source is FREQUENCY and the scaled frequency when the cal
source is V/GHz.
CFVAL will not return the updated Cal Factor Value if the system is in
TR0 Trigger Hold mode. That is, if you change the Cal Factor Frequency
and want to read back what the unit has set the Cal Factor to when the
system is in TR0 mode, the system will return the last Cal Factor value
before you went into TR0 mode.
Also, you may have to wait for approximately 0.25 s after you change the
Cal Factor Frequency to read back the Cal Factor Value even when not
in TR0, as CFVAL is not updated instantly after you change the Cal
Factor Frequency.
This restriction only applies to the CFVAL GPIB command and does not
effect any measurement taken. If you are in TR0 mode, change the Cal
Factor Frequency, and then take a measurement the Cal factor will be
calculated correctly.
Related
commands:
CFSRC, CFFRQ
Syntax: CHCFG <c>,<config>
c: 1 or 2
config: OFF, A, B, V, A–B, B–A, A/B, B/A
Remarks: A, B, V = Sensor A, Sensor B, or External Volts
(If V is sent when in Profile or Source Sweep mode, an execution error
will occur.)
A–B, B–A = Sensor A minus Sensor B, Sensor B minus Sensor A
A/B, B/A = Sensor A divided by Sensor B, Sensor B divided by Sensor A
Example: To set channel 2 to A–B:
CHCFG 1,A-B
Query: CHCFG? <c>
Returned String: CHCFG <c>,<config>