R&S ESR Series, Руководство пользователя

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Spectrum Measurements
R&S
®
ESR
376 User Manual 1175.7068.02 ─ 12
Remote command:
TRIG:SOUR EXT
, see
TRIGger<n>[:SEQuence]:SOURce
on page 839
SWE:EGAT:SOUR EXT
for gated triggering, see
[SENSe:]SWEep:EGATe:SOURce
on page 842
Video ← Trg/Gate Source
Defines triggering by the displayed voltage.
A horizontal trigger line is shown in the diagram. It is used to set the trigger threshold
from 0 % to 100 % of the diagram height.
Video mode is only available in the time domain.
Remote command:
TRIG:SOUR VID
, see
TRIGger<n>[:SEQuence]:SOURce
on page 839
SWE:EGAT:SOUR VID
for gated triggering, see
[SENSe:]SWEep:EGATe:SOURce
on page 842
RF Power ← Trg/Gate Source
Defines triggering of the measurement via signals which are outside the measurement
channel.
In RF Power trigger mode the instrument uses a level detector at the first intermediate
frequency. The detector threshold can be selected in a range between - 50
dBm and
-10 dBm at the input mixer. The resulting trigger level at the RF input lies within the
following range:
(-24dBm + RF Att ) ≤ Triggerlevel ≤ (+5dBm + RF Att), max. 30 dBm, for Preamp =
OFF
(-40dBm + RF Att ) ≤ Triggerlevel ≤ (-11dBm + RF Att), max. 30 dBm, for Preamp = ON
with
500 MHz ≤ InputSignal ≤ 7 GHz
Note: If input values outside of this range occur (e.g. for fullspan measurements), the
sweep may be aborted and a message indicating the allowed input values is displayed
in the status bar.
A
Trigger Offset , Trg/Gate Polarity and Trigger Holdoff can be defined for the RF trigger
to improve the trigger stability, but no hysteresis.
Remote command:
TRIG:SOUR RFP
, see
TRIGger<n>[:SEQuence]:SOURce
on page 839
SWE:EGAT:SOUR RFP
for gated triggering, see
[SENSe:]SWEep:EGATe:SOURce
on page 842
IF Power/BB Power ← Trg/Gate Source
Defines triggering of the measurement using the second intermediate frequency.
For this purpose, the R&S ESR uses a level detector at the second intermediate fre-
quency.
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.
The bandwidth at the intermediate frequency depends on the RBW and sweep type:
Configuration