HP437B Emulation Commands GPIB Operation
8-114 PN: 10585-00001 Rev. P ML2437A/38A OM/PM
LM (limits check state)
LN (Set linear units)
OC (Set calibrator state)
OD (Output the display)
Syntax: LM<state>
state:
0 (off) or 1 (on)
Remarks: Turns limit checking on or off.
Syntax: LN
Remarks: Changes the display to linear units (Watts).
Syntax: OC<state>
state:
0 (OFF)
1 (ON)
Remarks: For example: OC0 (reference calibrator state set to OFF).
Syntax: OD
Remarks: Outputs a formatted display channel reading in either dBs or Watts.
Will also output the cal factor tables, as described below.
The only way to read out the cal factor table data from the HP437 is to
send the commands to display each entry on the screen, and then ask for
a text display output using the 'OD' command.
The ML243xA supports the 'OD' command to the extent that it will
output a formatted display channel reading in either dBs or Watts, and
will also output the cal factor tables. After sending the 'ETn' command
(n = the cal factor table number) if an 'OD' is sent, the first frequency/cal
factor entry of the cal factor table is output in the HP format. If this is
then followed by an 'EN' the next cal factor entry pair is available for
output, and can be read using the 'OD' command. When all the pairs are
output, all further 'ENOD' combinations output a frequency of '00.00
MHz 100.0%'. The EX command terminates this action so that further
'OD' commands now output the display reading in a formatted mode.
If RFnOD (n = cal factor table number) is sent, the 50 MHz cal factor
table entry is output.
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