Rohde & Schwarz SM 300

The Rohde & Schwarz SM 300 device driver is a Signal Generator which is supported by RadiMation^®. This SM300 device is controlled through an USB connection with the PC.

Some of the limitations in the usage of the SM300 are:

• The 'R&S SM300 - Windows USB Driver Version 1.5.1' need to be installed on the computer
• The 'Rohde & Schwarz VXIplug&play' drivers version 1.8.2 or higher need to be installed on the computer
• RadiMation can not set the device in remote mode, reason for this is that the device is available on the USB bus when not in remote!!!!
• You can not see what the device is doing when in remote.

Required drivers

For the correct drivers, two software packages should be installed. These packages are:

• R&S SM300 - Windows USB Driver Version 1.5.1 (available at: http://www2.rohde-schwarz.com/en/products/test_and_measurement/signal_generation/SM300-%7C-Software-%7C-24-%7C-776.html )
• SM300 - Drivers VXIplug&play (available at: http://www2.rohde-schwarz.com/en/products/test_and_measurement/signal_generation/SM300-%7C-Drivers-%7C-25-%7C-928.html )

Configuring the device driver

In the advanced configuration screen of the device driver you need to insert a serial number. This number is unique for every Rohde & Schwarz SM 300.

How to get the serial number:

1. Set the device in remote.
2. Start the program 'SiScan' that is provided by Rohde & Schwarz.
3. Look voor SM 300 in the instrument column.
4. in the left column you see 'USB::0xaad::0x7' the last number is the serial number for the device. For example if the instrument is listed with: 'USB::0xaad::0x7::100001', then the number you need to fill in is 100001.

How to get the device in remote

There are two options:

1. reboot the device, this will take a long time.
2. Press the Sys button:
   1. Select with the < > button the menu 'config' on the bottom menu.
   2. Select 'interface' in the menu on the right.
   3. Press the enter button, also if the USB master is set to auto
   4. Select either 'auto' or 'extern' and press enter. The device will show a remote of blank window depending on the setting.

Maximum signal generator level

The maximum signal level is depending on the AM modulation. The following information can be found in the manual of the signal generator:

When amplitude modulation (AM) is set to On, maximum limit continuously decreases from 13 dBm to 7 dBm with dependency on
modulation depth (modulation depth = 0.0 % ... max limit = 13 dBm, modulation depth = 100.0 % ... max limit = 7 dBm).