Configuring the RF Signal
R&S
®
SMW200A
487User Manual 1175.6632.02 ─ 30
● "Mode" > "A External & A-> B Coupled"
● "Mode" > "External" if you are working with a one path instrument
● "Mode" > "A External & B RF Off"
● "Mode" > "A RF OFF & B External"
2. Apply the oscillator signal, with a level of 10 dBm ±3 dB at the corresponding LO IN
connector.
See Chapter 12.2.4, "RF Connectors Settings", on page 722.
3. Check if the external oscillator signal has the required frequency, as shown in the
dialog under "LO OUT Frequency".
4. Set "Out State > B On".
5. Execute "Adjust LO Level Current Frequency".
The R&S SMW automatically adjusts the internal LO signal level at the I/Q modula-
tor and the LO OUT connector.
To find the physical Location of the LO In/Out connectors
The LO IN and LO OUT connectors are located on the rear panel. To find out the exact
position, proceed as follows:
1. In the block diagram, select the "T/E/P/L/V" status indication field above the "RF"
block.
2. Select "LO IN" > "Show".
3. Observe the connectors's position on the "Rear" panel.
See also Chapter 12.2.4, "RF Connectors Settings", on page 722.
To configure LO coupling with cascaded instruments to achieve phase coher-
ence
The LO Coupling function can be used to generate beamforming signals.
The test setups in the following examples represent possible applications and provide
information about the coupling modes set in the signal generators. For the configura-
tion via remote control, see the examples in Chapter 14.19.6, "SOURce:FREQuency
Subsystem", on page 1124.
Local Oscillator Coupling
To Next Page
Loading...