DAB-3801

DAB-3801

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Outline

The DAB-3801 is a test signal generator conformable to the European DAB (Digital Audio Broadcast) Standard ETS 300 401. It consists of modulator blockÀî FIC generator block and MSC generator blockÀî receives audio and serial input dataÀî and outputs DAB IF signals. It is useful to verification of audio service and data service applications of DAB receivers.The FIC generator block has random access memoryÀî in which ready-to-use or user-created data can be loaded through a personal computer. ThusÀî the user can apply the DAB-3801 to verification of any receiver systems.? In the MSC generator blockÀî the data bit rateÀî protection level and multiplexing point depend on FIC. When the user creates FIC on the personal computerÀî the data bit rateÀî protection level and multiplexing point automatically changes according to the FIC created by the user. If FIC is reconfigured multiplex dataÀî the MSC generator block outputs reconfigured multiplex data according to such FIC. The DAB-3801 also has a pseudo random code generator and can measure the bit error rateÀî which is needed to evaluate the performance of demodulators of receivers.

Features

●It consists of modulator block, FIC generator block and MSC generator block, receives audio and serial input data, and outputs DAB IF signals. It is useful to verification of audio service ●Outputs Quasi-random codes for measuring the bit error rate BER, which is needed to evaluate the receiver performances. ●If several DAB-3801 units are connected, they can generate the same test signals with a time lag, enabling SFN (single frequency network) verification. ●Has random access FIC memory for verification of any receiver systems which the user wants. ●An internal backup circuit maintains FIC and panel setting written in the memory for four days at least. ●Outputs the pre-determined MSC multiplex configuration information (MCI), broadcasting station name (LABEL), program type (PTY), etc. repeatedly as the fixed FIC data. ●Internally replaceable I and Q signals allow the user to reverse the spectrum with a single switch when IF loop-back verification is changed into RF loop-back verification. ●A built-in asynchronous sampling rate converter receives digital output signals from a CD, MD or DAT player. ●As for the program associated data PAD, any data created by the user on a personal computer can be inserted as a repeat data. ●The user can input data synchronous with the burst clock output by the DAB-3801. With this function, the DAB-3801 can measure the bit error rate after error correction by inputting PN codes. ●The DAB-3801 encodes a DAB audio frame input to the audio input block and serial data input to the data input block. It supports all audio data shown in the Table index of Table 7 in ETS 300 401 6.2.