Rohde & Schwarz EMI Test ReceiverESCI - External Modulation of the Tracking Generator

Tracking Generator - Option R&S FSP-B9 R&S ESCI
1166.6004.12 4.284 E-1
External Modulation of the Tracking Generator
NETWORK menu:
MODULATION
EXT I/Q
EXT AM
EXT FM
MODULATION
POWER
SWEEP
MODULATION
OFF
The MODULATION softkey opens a submenu for
selecting different modulation modes.
The time characteristics of the tracking generator output
signal can be influenced by means of external signals
(input voltage range -1 V to +1 V).
Two BNC connectors at the rear panel are available as
signal inputs. Their function changes depending on the
selected modulation:
TG IN I / AM and
TG IN Q / FM
The modulation modes can be combined with each other and with the frequency offset function up to a
certain degree. The following table shows which modulation modes are possible at the same time and
which ones can be combined with the frequency offset function.
Table 4-2 Simultaneous modes of modulation (tracking generator)
Modulation Frequency
offset
EXT AM EXT FM EXT I/Q
Frequency offset
•••
EXT AM
• •
EXT FM
••
EXT I/Q
•
• = can be combined