Filter
Top Products
SCPI
COMMAND SUMMARY
The synthesizer uses
“bumping” to move unspecified frequency
parameters, but if the final value of any of the frequency headers is
the result of bumping, then an error is generated since the user is
not getting what was specified. This means, to guarantee sequence
independence requires sending the frequency pairs in a single
message.
Example 1: (present state start = 5
GHz, stop = 6 GHz)
FREQ:STARt
20 GHZ
FREQ:STOP
22 GHZ
an error results since the
stop frequency is bumped.
the final sweep does not
generate an error
(20 to 22).
Example 2: (present state start
=
5 GHz, stop
=
6 GHz)
FREQ:STOP
22 GHZ
FREQ:STARt
20 GHZ
no error is generated,
start frequency is unchanged.
still no error.
Example 3: (present state start
=
5
GHz
stop
=
6
GHz)
FREQ:STARt
20 GHZ;STOP 22 GHZ
FREQ:STOP
22
GHZ;STARt
20 GHZ
both are fine, no errors.
l
FREQuency:CENTer
<num>[freq
suffix]lMAXimumlMINimumlUPlDOWN
l
FREQuency:CENTer? [MAXimum|MINimum]
Sets and queries the center frequency.
The *RST value is (MAX +
MIN)/2.
l
FREQuency[:CWl:FIXed]
<num>[freq
suffix]lMAXimumlMINimumlUPlDOWN
l
FREQuency[:CWl
? [MAXimum|MINimum]
l
FREQuency[:FIXed]? [MAXimum|MINimum]
Sets and queries the CW frequency. This does not change the
swept/CW mode switch.
*RST value is (MAX +
MIN)/2
.
See
FREQ:CENTER for more information.
l
FREQuency[:CW]:AUTO
ONlOFFlllO
l
FREQuency[:FIXed]:AUTO
ONlOFFlllO
l
FREQuency[:CWl:AUTO?
l
FREQuency[:FIXed]:AUTO?
Sets and queries the
CW/center
frequency coupling switch. This
switch keeps the two functions coupled together when ON. Changing
one of them, changes both.
*RST
setting is OFF. See FREQ:CENTER
for more information.
l
FREQuency:MANual
<num>[f
req
suffix]lMAXimumlMINimumlUPlDOWN
l
FREQuency:MANual?
CMAXimumlMINimum]
S-36
Operating and Programming Reference
HP 8360
User’s Handbook