R&S FSVA3000 Series, Руководство пользователя

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Common Measurement Settings
R&S
®
FSVA3000/ R&S
®
FSV3000
398 User Manual 1178.8520.02 ─ 01
Remote command:
TRIG:SOUR VID
, see
TRIGger[:SEQuence]:SOURce
on page 911
SWE:EGAT:SOUR VID
for gated triggering, see
[SENSe:]SWEep:EGATe:SOURce
on page 916
IF Power ← Trigger Source
The R&S FSV/A starts capturing data as soon as the trigger level is exceeded around
the third intermediate frequency.
For frequency sweeps, the third IF represents the start frequency. The trigger band-
width at the third IF depends on the RBW and sweep type.
For measurements on a fixed frequency (e.g. zero span or I/Q measurements), the
third IF represents the center frequency.
This trigger source is only available for RF input.
The available trigger levels depend on the RF attenuation and preamplification. A refer-
ence level offset, if defined, is also considered.
For details on available trigger levels and trigger bandwidths, see the data sheet.
Note: Be aware that in auto sweep type mode, due to a possible change in sweep
types, the trigger bandwidth can vary considerably for the same RBW setting.
Remote command:
TRIG:SOUR IFP
, see
TRIGger[:SEQuence]:SOURce
on page 911
SWE:EGAT:SOUR IFP
for gated triggering, see
[SENSe:]SWEep:EGATe:SOURce
on page 916
Power Sensor ← Trigger Source
Uses an external power sensor as a trigger source. This option is only available if a
power sensor is connected and configured.
(See Chapter 8.2.3.3, "How to Work With a Power Sensor" , on page 322.)
If a power sensor is selected as the trigger mode, the following softkeys are not availa-
ble; these settings are configured in the "Power Sensor Config" dialog box (see
Chap-
ter 8.2.3.2, "Power Sensor Settings" , on page 318 ).
●
" Trigger Level " on page 399
●
" Slope " on page 400
●
" Hysteresis " on page 399
●
" Trigger Holdoff " on page 400
Note: For Rohde & Schwarz power sensors, the "Gate Mode" Lvl is not supported. The
signal sent by these sensors merely reflects the instant the level is first exceeded,
rather than a time period. However, only time periods can be used for gating in level
mode. Thus, the trigger impulse from the sensors is not long enough for a fully gated
measurement; the measurement cannot be completed.
Remote command:
TRIG:SOUR PSE
, see
TRIGger[:SEQuence]:SOURce
on page 911
SWE:EGAT:SOUR PSE
for gated triggering, see
[SENSe:]SWEep:EGATe:SOURce
on page 916
Time ← Trigger Source
Triggers in a specified repetition interval.
Trigger and Gate Configuration