R&S SMW-K553, Руководство пользователя

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Operating external frontends
R&S
®
SMW-K553
13 User Manual 1179.4240.02 ─ 02
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2
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3
For more information, see chapter "Electronic label" in the manual of the external
frontend.
5. Connect the "REF OUT" connector of the R&S SMW with the "Ref In" connector of
the R&S FE44S.
At the R&S SMW, you have two options:
● For 10 MHz reference frequency, use the BNC connector.
● For 1 GHz reference frequency, use the SMA connector.
See also section "Connecting to Ref In/Ref Out" in the R&S SMW user manual.
Table 3-3 and Figure 3-1 provide an overview on connections and a test setup.
Table 3-1: R&S SMW and R&S FE44S connections
Signal R&S SMW R&S FE44S
Reference Connector: "REF OUT"
Frequency: 1 GHz, 10 MHz
"Ref In"
LAN (Control) "LAN" "LAN"
IF In "RF A"/"RF B" "IF In"
RF Out - "RF In/Out"
DUT
RF shield box
Vector signal
generator
RF
Ref Out Ref
LAN
IF In RF Out
Ref In
LAN
RF Out
R&S
FE44S
LAN
IF In
Figure 3-1: Test setup with R&S FE44S in Tx mode: R&S SMW, R&S FE44S and RF shield box
Vector signal generator = R&S SMW
Note, that the R&S FE44S can input (Rx mode) or output (Tx mode) one RF signal at a
time. For analyzing the input RF signal from the DUT, the R&S FE44S downconverts
the signal. Also, the R&S FE44S routes the resulting IF output signal to the signal ana-
lyzer. During RF signal analysis, the R&S FE44S does not process the IF input signal
from the R&S SMW.
For a more general test setup, see "OTA microwave test setup" on page 10.
Connecting external frontends