Rohde & Schwarz SMM100A, User Manual

Page: 31 / 1088

Getting started
R&S
®
SMM100A
31 User Manual 1179.1341.02 ─ 05
a) Carefully align the connector of the cable and the connector along a common
axis.
b) Mate the connectors along the common axis until the male pin of the inner con-
nector engages with the female socket of the outer connector.
c) Turn the nut of the outer connector until the connectors are firmly coupled.
d) Torque the nut to the specified limit using a calibrated torque wrench. Hold the
opposite connector part stationary with a spanner.
For torque limits of the most relevant connector types, see
Table 3-1 .
For more information, see chapter "Handling" of the application note 1MA99 .
If your instrument is equipped with a test port adapter, see the application note
1MA100 .
The connector types listed in this table represent the common connectors provided by
Rohde
& Schwarz. It is considered as general information and therefore can contain
connector types that do not apply to your instrument.
See "RF" on page 40.
Table 3-1: Connector types and torque limits
Type Torque limit Nut opening
lb-Inch Nm Inch mm
N 13.3 1.5 3/4 20
SMA 5 0.56 5/16 8
3.5 mm 8 0.9 5/16 8
2.92 mm 8 0.9 5/16 8
2.4 mm 8 0.9 5/16 8
1.85 mm 8 0.9 5/16 8
1.0 mm 3 0.34 0.236 6
To prevent RF output switch-off
►
NOTICE! If you set a too high output level without a load connected to the instru-
ment, the reverse power can exceed a limit forcing the R&S SMM100A to switch off
the RF output.
Connect a load with sufficient return loss as given in the data sheet.
3.1.10 Connecting to LO In/Out
"LO In/Out" connectors are Subminiature Version A (SMA) connectors.
The connector is located on the rear panel .
Follow the instructions in "To connect to screwable connectors" on page 30.
See also Chapter 7.8, "Local oscillator coupling" , on page 305.
Preparing for use