SCPI Command Set
Examples
:FREQ:CENTER 2441.5 MHz
SENSE:FREQ:CENT 200000000
:FREQ:CENT 2.01 GHZ
SENSe:FREQ:CENTer?
[:SENSe]:FREQuency:IF?
This command queries the IF frequencies that are used for the current input mode and
center frequency.
This command works in all WSA5000 models but the number and significance of the IF
frequencies will vary depending on the model and configured options (see
command). The IF index can be specified either as a positive
number (1 to N) where 1 indicates the first IF mixing stage after the input from the front
end , or as a negative number (-1 to -N) where -1 indicates the last IF before the digitizer
input or at the output connector in certain models (e.g. HIF option). If the input index is
beyond the number of available IFs,
out of range” response.
Syntax
[:SENSe]:FREQuency:IF? <non-zero integer>
Parameters
<IF index>
Input Data Type
Non-zero Integer
Allowable Values
Varies depending on RFE input mode, frequency, product model and
options
Query Response
IF frequency
Output Data Type
<integer>
Default Output Unit
Hz
*RST State
N/A
Examples
SENSE:FREQ:IF? -1
[:SENSe]:FREQuency:LOSCillator?
This command queries the frequency to be set for the external local oscillator (LO) 1 or 2
in corresponding to current the WSA's center frequency.
Note:
This command ONLY works with WSA5000s that have the external LO option
command). And when a WSA5000 supports the external LO
input mode,
the RFE's IQIN mode will not be available
result in a SCPI error being returned. Please see “The Use of ThinkRF Products with
External Local Oscillators” AppNote for more important details.
Syntax
[:SENSe]:FREQuency:LOSCillator? <1 | 2 | 3>
Parameter
None
Query Response
<integer>
0 := LO Off
*RST State
1
Example
:FREQ:LOSC? 2
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ThinkRF WSA5000 Wireless Signal Analyzer Programmer's Guide