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O p e r a t i n g c o n t r o l s
turns the current modulation frequency. The instrument sends
back a string representing a NR3 decimal number.
:PM:INTern:SHAPe SIN | SQU
:PM:INTern:SHAPe?
Sending line (9) the shape of the internal modulation signal can
be changed. The parameters are: SIN for a sine signal, SQU for
square. Sending line (10) the instrument returns the current
shape. The instrument sends back the same strings as the
corresponding command parameters above.
:PM:STATe 0 | OFF | 1 | ON
:PM:STATe?
Sending line (11) the PM can be turned on or off. The PM is tur-
ned on by sending the parameters 1 or ON and it is turned off by
sending 0 or OFF (if present). Sending line (12) the instrument
returns the current PM state. The instrument sends back 0, if
no PM is in progress, and 1, if PM is present.
:PM:EXTern:COUPling AC | DC
:PM:EXTern:COUPling?
Sending line (13) the external PM modulation is set to AC or
DC mode. Sending line (14) the instrument returns the current
state. The instrument sends back the same strings as the cor-
responding command parameters above.
Example:
:PM:UNIT DEG; DEV 120; INT:FREQ 1E+3;
SHAP SIN; STATE 1
FSK
Commands in order to modify FSK parameters
Syntax:
:FSKey :SOURce EXT
:FSKey :SOURce ?
Sending line (1) the modulation source can be changed (for this
unit version always EXT). Sending line (2) the instrument returns
the FSK source. It sends back the string EXT (not EXTERN).
:FSKey :F0 <NUM>
:FSKey :F0?
:FSKey :F1 <NUM>
:FSKey :F1?
Sending line (3) and (5) the two frequencies F0 and F1 can be
changed. The <NUM> parameter is a NR1 or NR2 or NR3 num-
ber (see paragraph Syntax conventions). No unit must follow the
number, Hz unit is the default one. The value is rounded to the
resolution. Sending line (4) and (6) the in-strument returns the
two frequencies F0 and F1. It sends back a string representing
a NR3 decimal number.
:FSKey :STATe 0|OFF|1|ON
:FSKey :STATe?
Sending line (7) the FSK can be turned on or off. The FSK is
turned on by sending the parameters 1 or ON, and it is turned off
by sending 0 or OFF (if present). Sending line (8) the instrument
returns the current FSK state. The instrument sends back 0, if
no FSK is in progress, and 1, if FSK is present.
Example:
:FSK:SOUR EXT ; F0 400E+6 ; F1 410E+6 ; STAT ON
40
Subject to change without notice
PSK
Commands in order to modify PSK parameters.
(9)
Syntax:
(10)
:PSKey :SOURce EXT
:PSKey :SOURce ?
Sending line (1) the modulation source can be changed (for this
unit version always EXT). Sending line (2) the instrument returns
the PSK source. It sends back the string EXT (not EXTERN).
:PSKey :PH0 <NUM>
(11)
:PSKey :PH0?
(12)
:PSKey :PH1 <NUM>
:PSKey :PH1?
Sending line (3) and (5) the two phases PH0 and PH1 can be
changed. The <NUM> parameter is a NR2 number (see para-
graph Syntax conventions). No unit must follow the number,
the current unit is the default one. If the value has an accuracy
higher than the resolution, the number is rounded to the corres-
(13)
ponding digit. Sending line (4) and (6) the instrument returns the
(14)
two phases PH0 and PH1. It sends back a string representing
a NR2 decimal number (without unit).
:PSKey :UNIT RAD|DEG
:PSKey :UNIT?
Sending line (7) the current unit can be changed. Two para-me-
ters are possible: RAD for radian or DEG for degree. Sending
line (8) the instrument returns the current unit. It sends back
the same string as the corresponding command parameters
above.
:PSKey :STAT 0|OFF|1|ON
:PSKey :STAT?
Sending line (9) the PSK can be turned on or off. The PSK is
(1)
turned on by sending the parameters 1 or ON, and it is turned off
(2)
by sending 0 or OFF (if present). Sending line (10) the instrument
returns the current FSK state. The instrument sends back 0, if
no PSK is in progress, and 1, if PSK is present.
Example:
:PSK:SOUR EXT ; UNIT RAD ; PH0 0 ; PH1 10 ; STAT ON
(3)
SWEEP
(4)
(5)
(6)
Commands in order to modify SWEEP parameters.
Syntax :
:FREQuency:MODE SWEep
:FREQuency :MODE FIXed | CW
:FREQuency :MODE ?
Sending line (1) the SWEEP can be turned on. Sending line (2)
the SWEEP can be turned off, if SWEEP is present. Sending line
(3) the instrument returns the current SWEEP state. It sends
back SWE, if SWEEP is in progress, and FIX, if no SWEEP is
(7)
present.
(8)
:FREQuency:STARt <NUM>
:FREQuency:STARt?
:FREQuency:STOP <NUM>
:FREQuency:STOP?
Sending line (4) and (6) the two frequencies START and STOP
can be changed. The <NUM> parameter is a NR1 or NR2 or NR3
number (see paragraph Syntax conventions). No unit must follow
the number, Hz unit is the default one. The value is rounded to
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
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