3. Program control commands
3.3 Instrument Subsystem Command
119
[:SOURce]:RADio:CUSTom:POLarity[:ALL] <Mode>
Function description:
This command is used to set the direction of rotation of the radio signal
phase, including: normal and invert. If normal mode is selected, the
signal modulation will be normal; if invert mode is selected, signal Q will
be inverted to complete the inversion of carrier signal.
Setting format:
[:SOURce]:RADio:CUSTom:POLarity[:ALL] NORMal|INVert
Query format:
[:SOURce]:RADio:CUSTom:POLarity[:ALL]?
Parameter description:
<Mode>
Discrete data. The values of rotation mode of radio signal phase are as
follows:
NORMal | 0: normal
INVert
| 1: invert
Example:
[:SOURce]:RADio:CUSTom:POLarity[:ALL] INV
The radio signal phase is invert.
Reset state:
NORM
Key path:
[Base]
—
> [Base Config]
—
> ]
[:SOURce]:RADio:CUSTom:DENCode <State>
Function description:
This command is used to enable the differential encoding. When
differential encoding is enabled, if the bit is different from the one before
it, the modulation bit will be set to 1; if the bit is the same, the modulation
bit will be set to 0. For example, when the bit is 1010 and differential
encoding is enabled, the modulation bit will be 1111.
Setting format:
[:SOURce]:RADio:CUSTom:DENCode ON|OFF|1|0
Query format:
[:SOURce]:RADio:CUSTom:DENCode?
Parameter description:
<State>
Boolean data, which is taken as follows:
ON | 1: Differential encoding ON
OFF | 0: Differential encoding OFF.
Example:
[:SOURce]:RADio:CUSTom:DENCode 1 differential encoding ON
Reset state:
0
Key path:
[Base]
—
> [Base Config]
—
> [Differential Code ON/OFF]
[:SOURce]:RADio:CUSTom:VCO:CLOCk <Mode>
Function description:
This command is used to set the radio sampling clock type.
Setting format:
[:SOURce]:RADio:CUSTom:VCO:CLOCk INTernal|EXTernal
Query format:
[:SOURce]:RADio:CUSTom:VCO:CLOCk?
Parameter description:
<Mode>
Discrete data, with values taken as follows:
INTernal: Internal sampling clock
EXTernal: External sampling clock
Example:
[:SOURce]:RADio:CUSTom:VCO:CLOCk INT the radio sampling
clock is internal.