R&S®EFA TV Test Receiver Family (analog and digital)
Measurement receivers or demodulators for common TV technology
Noticias de R&S
|File Name||Version||Last Modified||File Size|
|Fully automatic quality control of TV signals|
The new, free-of-charge R&S EFA TxCheck software for the TV Test Receiver R&S EFA evaluates measurements performed on TV signals fully automatically and visualizes results in a straightforward manner. Plus, it performs a lot of routine tasks, thus reducing the work load for the operator.
|189 - 2006/I||20.06.2006||401 kB|
|Fast recording and documentation of measured values|
No matter whether individual measurements or entire measurement sequences are performed, the results usually need to be documented. Both the measurements and their documentation can be very time-consuming. The new EFA-SCAN R&S EFA-K1 measurement software reduces the work involved.
|179 - 2003/III||17.09.2003||949 kB|
|Innovative measurement functions for terrestrial digital TV|
DVB-T Test Receiver EFA-T features a multitude of measurement functions for the complex characteristics of OFDM signals, thus helping to locate transmission channel problems. Some of these innovative methods are already described in detail in. A number of new features now allow classification and analysis of DVB-T signal quality.
|167 - 2000/II||19.11.2001||170 kB|
|Eye monitoring for continuous detection of digital TV signals|
Rohde & Schwarz presents a new display for the analysis of digitally modulated signals (QAM and 8VSB) to go with the Test Receivers R&S EFA, making a valuable contribution to the evaluation and monitoring of advanced communication systems. This innovative method (patent pending) is based on the classic constellation diagram, expanded by the dimension time. It opens up completely new possibilities for judging quality and errors.
|173 - 2002/I||04.03.2002||148 kB|
|Determination of bit error ratio in DVB|
The following questions are salient when assessing the quality of a DVB (digital video broadcasting) system: How high is the available margin of a DVB transmission? Up to what C/N ratio can a settop box still demodulate and decode DVB signals? The answers are obtained through deliberate deterioration of the C/N ratio by superimposing white noise on the DVB signal. Appropriate conversion produces the bit error ratio (BER) as a function of the C/N ratio for QPSK modulation and all QAM modes.
|161 - 1999/I||15.01.2004||76 kB|
|Digital multistandard platform for the analysis of QAM-modulated signals|
When it comes to selecting TV programs, digital cable TV provides many consumers with an alternative to the digital terrestrial TV networks and the established DVB-S standard. Digital cable technology allows a return channel to be used within the same physical layer (coaxial cable), enabling consumers to send back information to the cable headend (e. g. for Internet access, video on demand, etc). The barrier between data communication equipment and TV networks is now smaller than ever before. As a result, there is an increasing demand for measuring instruments capable of performing a wide variety of measurements in a very short time. The new Test Receivers EFA are fully fit to perform these measurements.
|172 - 2001/III||27.11.2001||185 kB|
|Conversion of C/N or SNR to E(b)/N(0) in DVB|
|163 - 1999/III||01.01.2000||54 kB|
|A precision instrument that also analyzes arbitrary QAM signals|
Quadrature amplitude modulation (QAM) is increasingly gaining in importance in modern communication and transmission systems, offering, as it does, particularly high spectrum effi-ciency and reliability in digital data transmission. This applies to wired and wireless links alike. TV Test Receiver EFA from Rohde & Schwarz, the test reference for analog and digital TV signals, analyzes and displays even arbitrary QAM signals with high precision without special synchronization sequences.
|164 - 1999/IV||27.11.2001||538 kB|