HP 8360 - Manual (Page 271)

Programming Codes
SYSTem:MMHead:SELect
SYSTem:MMHead:SELect?
Analyzer: NONE
See Also Module Menu
Module Select
Function Group
Menu Map
Description
Programming Codes
See Also
HP 8360
User’s Handbook
POWER and FREQUENCY
2 and 5
This command disables millimeter source module sensing. The
synthesizer will not alter its frequency limits and multiplier even
if a source module is connected to either source module interface
connector.
An asterisk next, to the key label indicates this feature is active.
SYSTem:MMHead:SELect
SYSTem:MMHead:SELect?
Analyzer: NONE
Menu
Operating and Programming Reference