GPIB Operation ML24xxA Native Commands
ML2437A/38A OM/PM PN: 10585-00001 Rev. P 8-67
REL (Relative control)
RFCAL (Turn RF reference calibrator ON or OFF)
RGH (Range Hold Sensor)
Syntax: REL <c>,<mode>
c: 1 or 2
mode: 0 Turn OFF
1 Turn ON and reference
2 Turn ON, use old references if not first time.
Remarks: Turns relative ON or OFF, or references the zero point.
REL1 and REL2 toggle between relative and absolute measurements.
Sending the RELx command when in dB mode will make the meter
apply the last used RELATIVE value. This relative value is used
thereafter until it is replaced by another one in the same manner. This
allows the user to refer to a previously referenced value, without the
meter resetting itself back to a 0.00 display.
Query: REL? <c>
Returned String: REL <c>,<mode>
Syntax: RFCAL <state>
state: ON or OFF
Remarks: Turns on or off the RF reference calibrator.
Query: RFCAL?
Returned String: RFCAL <state>
Syntax: RGH <s>[,<val>]
s: A or B
val: 0 to 5 (0 to 6 for universal power sensor only)
(0 = AUTO)
Remarks: This function is used to toggle a sensor’s range hold off or on, to set a
specific range to be held, or to select AUTO ranging. RGH sent with only
the sensor parameter will toggle the sensor between holding the present
operating range and AUTO. If RGH is sent with sensor and value
parameters, the sensor range mode will be set to the range value sent.
Query: RGH? <s>
Returned String: RGH <s>,<val>
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