BNC 835-3 User Manual - Manual (Page 21)

Figure 13 REFERENCE frequency setting
Using the Trigger options (Figure 14)
The 835-3 supports internal and external triggering for frequency, power, and list
sweeps. To set the trigger options, go to the TRIGGER tab as shown in Figure 14.
Various trigger sources are available:
a) the “trigger key” which is the RF on/off button,
b) LAN (SCPI)
c) external input at the rear panel (currently shared with the pulse modulation
input).
The external TRIGGER input should be a TTL logic signal.
The following trigger parameters can be defined:
a) trigger delay: 50 µs to 10 sec in 1 µs resolution predefined delay after
trigger signal arrives. The trigger delay uncertainty is ±2 µs.
b) trigger modulo: N=1 to 255: defines every Nth trigger event to be used
c) trigger active edge: positive or negative
d) trigger occurrence: single event or repeated
e) trigger type: single point, complete sweep, or gated
Confirm settings and arm trigger by pressing the Apply button.
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