Rohde & Schwarz M3SR Series 4100, Service Manual, Page: 67 / 138

Antenna Interface - Function R&S M3SR Series 4100 HF Transceivers
1.31 6124.9007.82.01
1.3.2.10 Antenna Interface - Function
The Antenna Interface is installed in the Interface Module of the radio. It is available in two versions
(see Fig. 1.13 and Fig. 1.14):
¾ Model 02 with one BNC connector
¾ Model 03 with two BNC connectors
Connector X2111 is used for RX-in signals only. Transceivers with an external Power Amplifier use
connector X2112 for RX-in and TX-out signals. Receivers can use X2112 as a second antenna input.
Fig. 1.13 Antenna Interface, Mod. 02
Fig. 1.14 Antenna Interface, Mod. 03
ICN-S4100-A-E11100-R-D0894-00210-A-01-1
ICN-S4100-A-E11100-R-D0894-00310-A-01-1