HP (Hewlett-Packard) HP 8360 Manuel D’Utilisation

Page de 508
 COMMAND SUMMARY
positions to the bandwidth, < 20 Hz and > 100 
 but any
numeric is accepted. The value is compared to 1 
 and the correct
position is determined (> 1 
 sets the position to 100 
 and
 1 
 sets the position to 20 Hz). After 
 the value is 100
 
 suffix] 
FM:INTernal:FREQuency? 
Sets and queries the frequency (in Hz) of the internal FM source.
After 
 the value is 1 MHz.
FM:INTernal:FUNCtion 
FM:INTernal:FUNCtion?
Sets and queries the waveform of the internal FM source.
After 
 the value is 
 
FM:SOURce?
Sets and queries the source of the FM modulating signal.
After 
 the value is 
FM:SENSitivity 
 suffix/V] 
FM:SENSitivity? 
Sets and queries the FM Input sensitivity.
The *RST value is MAX (10 MHz/V) .
FM:STATe 
FM:STATe?
Sets and queries the FM modulation state.
After 
 the value is OFF.
Frequency Subsystem
Any two frequency setting headers 
 STOP, 
 or
SPAN) may be sent in a single message and the resulting sweep
is what was requested. The order of the headers in the message
does not make any difference in the final result. When a message is
completed, coupling equations are used to fix the unset parameters to
the correct values. These equations specify that:
center frequency = (start + stop)   2
frequency span = (stop   start)
If more than two are sent then the last two in the message are used
to determine the sweep and no errors are given.
If only one header is sent in a message, then the assumed pairs are
center/span and start/stop. In other words, if only center is sent,
then span is kept constant (if possible) while adjusting center to the
requested value. The start/stop frequencies are updated to reflect the
changes based on the coupling equations.
HP 8360
User’s Handbook
Operating and Programming Reference