R&S SMA100B - Connecting to RF

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R&S

SMA100B

32User Manual 1178.3834.02 ─ 09

3.1.9 Connecting to RF

The connector is located on the front panel.

If you have the instrument equipped with an option for rear panel connectors, the RF

output connector is on the rear panel.

To prepare for connecting to RF

NOTICE! Damaged or not clean connections can lead to RF insertion loss and mis-

match, and even premature wear of the connectors.

Before connecting to the port, inspect the RF connector visually to check that it is

clean, undamaged and mechanically compatible.

See the application note 1MA99 for information on how to handle and maintain the

RF port, to minimize measurement deviations and ensure its longevity.

NOTICE! Risk of instrument damage. Excessive reverse power or DC voltage at

the RF connector can damage the instrument.

Make sure that signal power and DC limits as given in the data sheet.

3. If the R&S SMA100B is switched on, deactivate the RF output, before connecting

an RF cable to the RF connector.

In the home screen, select the block "Level" > "RF ON > Off".

4. Use a high-quality RF cable that matches the RF connector type.

See "Cable selection and electromagnetic interference (EMI)" on page 29.

To connect to screwable connectors

1. Use a high-quality cable that matches the connector type.

See "Cable selection and electromagnetic interference (EMI)" on page 29.

NOTICE! Risk of instrument damage and connector damage. Excessive tightening

can damage the cables and the connectors. However, if you do not tighten the con-

nectors enough, the measurement results can be inaccurate.

To connect the cable with the connector, proceed as follows:

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.

Preparing for use

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