Atec Rohde-Schwarz-SFQ Series - Manual (Page 3)

TV Test Transmitter R&S ® SFQ 3
Basic features
◆ Frequency range 0.3 MHz to 3.3 GHz
◆
Large level range
−99.9 dBm to +13 dBm
◆
Simple, user-friendly hardkey and
softkey control
◆
Large display with all important
parameters in headline
◆ Status menu for supplementary
information
◆
User-definable transmitter tables
◆ Storage of instrument settings internally
and on memory card
◆ Online help
◆ IEC625/IEEE488 bus, RS-232-C interface
◆
Modular design
◆ Software update via RS-232-C interface
(or memory card)
General
The TV Test Transmitter R&S SFQ is a complete solution for testing digital
TV links and receivers. The open-end software and modular hardware make
the R&S SFQ future-proof. The standards for DVB-T, DVB-S/DVB-DSNG,
turbocoding, DVB-C, J.83-B, ATSC/8VSB and ISDB-T
are fully complied with.
Owing to its adaptability to future system changes, the R&S SFQ is a useful
and rewarding investment for your launch onto the digital TV market.
Moreover, the R&S SFQ also processes analog frequency-modulated satellite
signals in line with PAL, SECAM, NTSC standards. The sound signals are
transmitted using analog FM and digital ADR sound subcarriers.
The test signals produced are of high precision and comply with the stan-
dards, but they can also be varied and provided with predefined errors to
determine the performance of your products at their limits. The reproducible
simulation of real transmission conditions by means of the noise generator
and the fading simulator enables the specification of modules under test.
Applications
Because of its high signal quality and versatile parameters variations, the
R&S SFQ is ideal as a source for digital terrestrial signals (DVB-T, ATSC and
ISDB-T), for testing satellite (DVB-S/-DSNG, turbocoding and FM) and digital
cable links (DVB-C, J.83-B), 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 the 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 eas-
ily be varied. For laboratory applications, values outside those defined in the
standard can be selected. For special measurements, e.g. DVB-T, it is possi-
ble 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 the R&S SFQ.
The analog R&S SFQ supplies frequency-modulated satellite signals con-
forming 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 vari-
able. Signals such as noise or energy dispersal can be added. It is thus pos-
sible to test satellite links and receivers with the aid of standard signals and
to check the response to nonstandard signals.
TV Test Transmitter R&S® SFQ 3