R&S FSH series, Quick Start Manual

Page: 43 / 130

41
E-02
Input for external trigger or external reference
(EXT TRIG/EXT REF)
Either an external trigger signal to start a
measurement or a 10 MHz reference signal
for frequency synchronization is fed in via the
EXT TRIG/EXT REF BNC socket. The trigger
threshold is similar to that of TTL signals. The level
for the reference signal must be larger than 0 dBm.
The necessary settings can be entered in the
SETUP menu (SETUP key, INSTRUMENT SETUP
softkey).
BIAS Port 1/BIAS Port 2 direct current inputs
(for models 1309.6000.24 and 1309.6000.28 only)
GalaxyE_v1-10_3.indd 41 GalaxyE_v1-10_3.indd 41 08.04.2009 15:21:42 08.04.2009 15:21:42