[Sense:]Ademod:fm:offset - R&S FSV-K7 Operating Manual

®
R&S FSV-K7/K7S
The offset thus determined differs from the one calculated by the
MARKer:FUNCtion:ADEMod:FERRor[:RESult<t>]?
for determination of the frequency deviation, the modulation is removed by means of
low pass filtering,producing results that are different from those obtained by averaging.
Parameters:
<Type>
Example:
Mode:
[SENSe:]ADEMod:MTIMe <Time>
This command defines the measurement time for analog demodulation.
Parameters:
<Time>
Example:
Mode:
Manual operation:
Operating Manual 1176.7561.02 ─ 06
Analog Demodulation Option R&S FSV–K7
Remote Commands of the Analog Demodulation (R&S FSV–K7)
<result type> | IMMediate | AVERage
IMMediate
The current measurement results will be used for calculating the
FM offset
AVERage
The measurement results that were averaged over the given #
of measurements will be used for calculating the FM offset
If no average measurement was active during the last measure-
ment sequence only the [SENSe:]ADEMod:FM:OFFSet
IMMediate command (see
on page 132) will return a correct result (data to calculate the off-
set are taken from the last measured data set).
[SENSe:]ADEMod:FM:OFFSet AVERage will cause a query
error in this case.
ADEM:SET 8MHz,32000,EXT,POS,-500,30, see
on page 138
]ADEMod:SET
Sets up demodulator parameters to execute 30 measurements
ADEM:FM AVER,OFF,OFF
Selects FM results to perform averaging
ADEM:AM OFF,OFF,OFF
Switches off AM demodulation
ADEM ON, see
[SENSe:]ADEMod[:STATe]
Switches on analog demodulator
INIT; WAI
Starts measurement and waits for sync
ADEM:FM:OFFS? IMM
Reads FM offset of last measurement of the sequence of 30
ADEM:FM:OFFS? AVER
Reads FM offset averaged over 30 measurements
ADEMOD
*RST: 62.5us
ADEM:MTIM 62.5us
Sets the measurement time to 62.5 µs.
ADEMOD
See "Meas Time" on page 31
CALCulate<n>:
on page 87 command since,

[SENSe:]ADEMod:FM:OFFSet

on page 121
[SENSe:
133