The Baseband Fading Simulator ¸ABFS is suitable for universal mobile radio applications in research, development and production. It comprises all scenarios and statistical models for simulating sporadic fading as specifi ed in the test regulations of mobile radio standards (e.g. GSM, 3GPP WCDMA or CDMA2000®). The fl exible concept of the ¸ABFS allows the simulation of radio channels of existing and future communications systems (e.g. mobile radio, broadcasting, fl ight telephone, WLL, or WLAN systems). The ¸ABFS can also simulate frequency hopping systems. The ¸ABFS is fast enough to follow the frequency hopping of a test system, for example within a frame of 4.616 ms (GSM frame time). Furthermore, an offset voltage for each I and Q input or output can be entered to compensate for external DC offset voltages. Together with a baseband source (e.g. the I/Q Modulation Generator ¸AMIQ,), receiver tests can be performed at the I/Q level even if the corresponding RF link is not available. During the development of receivers or correction circuits in the receiver (e.g. equalizer), the effects of fading can thus be checked at a very early stage. The ¸CMU 200 with the option ¸CMU-B17 in combination with the Fading Simulator ¸ABFS can also be used for receiver tests under fading conditions.
B1 | Noise generator |
B2 | Second fading simulator 4 channels = 6 paths or 2 channels = 12 paths |
B3 | Second noise generator |
B49 | Fading functions for W-CDMA (3GPP) |
B50 | Fading functions for 3GPP WCDMA for second fading simulator (ABFS-B49 required) |
C5 | Five years of calibration coverage based on the R&S recommended calibration interval - includes test data. The first calibration is included with product delivery with 4 additional depot calibration(s). |
DCV-2 | Documentation of calibration values |
R3 | Three years of depot repair coverage, including re-calibration if necessary to complete the repair. First year of repair coverage is provided by the 12-month new product warranty. |
R5 | Five years of depot repair coverage, including re-calibration if necessary to complete the repair. First year of repair coverage is provided by the 12-month new product warranty. |