R&S^®SFQ TV Test Transmitter

Because of its high signal quality and versatile parameters variations, R&S SFQ is ideal as a source for digital terrestrial signals (DVB-T and ATSC), for testing satellite (DVB-S/-DSNG, turbocoding and FM) and digital cable links (DVB-C, J.83B), as a standard-signal generator in development, as a reference in quality monitoring, EMC labs, inspection and test centers and for use in production.

The output frequency range allows R&S SFQ to be used as a back-channel generator and covers future extensions of the satellite IF range.

Operational parameters (e.g. roll-off, puncturing rate or QAM mode) can easily be varied. For laboratory applications, values outside those defined in the standard can be selected. For special measurements, e.g. DVB-T, it is possible to switch off modulation, individual carriers or groups of carriers. Sweep can be performed over the complete RF range.

A shift function for frequency, level and C/N makes it possible to determine the functional limits of the DUT, compensate for external matching pads, adjust two units to give exactly the same output signal, etc. The advantage is that the output signal can be changed as required while the standard/nominal value continues to be displayed on R&S SFQ.

The analog R&S SFQ supplies frequency-modulated satellite signals conforming to standards. Various TV standards can be selected and up to six sound subcarriers (FM and ADR) can be integrated. In addition, external sound subcarriers can be applied. Operational parameters are in line with standards; parameters such as amplitude, frequency and deviation are variable. Signals such as noise or energy dispersal can be added. It is thus possible to test satellite links and receivers with the aid of standard signals and to check the response to nonstandard signals.