HAMEG HM81343
Manual de Usuario

Operating controls
turns the current modulation frequency. The instrument sends back a string representing a NR3 decimal number. :PM:INTern:SHAPe SIN | SQU :PM:INTern:SHAPe? (9) (10)

PSK
Commands in order to modify PSK parameters. Syntax: :PSKey :SOURce EXT (1) :PSKey :SOURce ? (2) 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> :PSKey :PH0? :PSKey :PH1 <NUM> :PSKey :PH1? (3) (4) (5) (6)

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? (11) (12)

Sending line (11) the PM can be turned on or off. The PM is turned 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? (13) (14)

Sending line (3) and (5) the two phases PH0 and PH1 can be changed. The <NUM> parameter is a NR2 number (see paragraph 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 corresponding digit. Sending line (4) and (6) the instrument returns the two phases PH0 and PH1. It sends back a string representing a NR2 decimal number (without unit). :PSKey :UNIT RAD|DEG :PSKey :UNIT? (7) (8)

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 corresponding command parameters above. Example: :PM:UNIT DEG; DEV 120; INT:FREQ 1E+3; SHAP SIN; STATE 1

Sending line (7) the current unit can be changed. Two para-meters 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? (9) (10)

FSK
Commands in order to modify FSK parameters Syntax: :FSKey :SOURce EXT (1) :FSKey :SOURce ? (2) 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? (3) (4) (5) (6)

Sending line (9) the PSK can be turned on or off. The PSK is turned on by sending the parameters 1 or ON, and it is turned off 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

SWEEP
Commands in order to modify SWEEP parameters. Syntax : :FREQuency:MODE SWEep (1) :FREQuency :MODE FIXed | CW (2) :FREQuency :MODE ? (3) 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 present. :FREQuency:STARt <NUM> :FREQuency:STARt? :FREQuency:STOP <NUM> :FREQuency:STOP? (4) (5) (6) (7)

Sending line (3) and (5) the two frequencies F0 and F1 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 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? (7) (8)

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
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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

Subject to change without notice