Lo/If Ports For External Mixers - Option R&S Fsp-B21; Connecting An External Mixer - Rohde & Schwarz R&S FSP Series Operating Manual

R&S FSP
4.13 LO/IF ports for external mixers - Option R&S FSP-
B21
4.13.1

Connecting an External Mixer

To increase the frequency range, the FSP 40 can be operated with external mixers.
Both two-port and three-port mixers can be used. Connect mixer as follows:
Use the coaxial cable supplied to feed in the LO signal.
If no external mixers are connected to the R&S FSP, cover the two front connec-
tors 'LO OUT / IF IN' and 'IF IN' with the SMA caps supplied.
To activate the operation mode, press softkey EXTERNAL MIXER in the frequency
menu.
Three-port mixer:
P R E S E T
Connect the 'LO OUT / IF IN' output of the R&S FSP to the LO port of the external
mixer.
Connect the 'IF IN' input of the R&S FSP to the IF port of the external mixer.
Feed the signal to be measured to the RF input of the external mixer.
Operating Manual 1164.4556.12 - 06
LO/IF ports for external mixers - Option R&S FSP-B21
. .
S P E C T R U M A N A L Y Z E R 9 k H z . .. 3 G H z F S P
L O O U T / IF IN
E x te rn a l
L O
M ix e r
R F IN P U T
1 0 9 3 .4 4 9 5 . 0 3
M A D E I N G E R M A N Y M A D E I N G E R M A N Y
IF IN
IF
R F
Instrument Functions
4.265