DYNAS

DYNAS is a system developed by Telefunken for the reception of FM-modulated transmitters in the early 1990s . Compared to classic receivers , it has a higher selectivity and sensitivity . This is achieved through the adaptive bandwidth of the IF filter and dynamic tracking of the center frequency of the IF filter. The principle has been adopted in some high-quality FM tuners ( Onkyo T-4970) as well as in car radios (which are affected by difficult and rapidly changing reception conditions).

With a transmitter distance of 200 kHz, an undisturbed reception in stereo is possible, with 100 kHz a largely undisturbed mono reception is still possible. Sharx is a similar technology , but it is implemented digitally as software.

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• The DYNAS reception concept. Radio Fernsehen Elektronik, issue 2/1992, pages 88–90, ISSN 0033-7900
• Description of the integrated circuit U4292B
• Patent: Process for controlling an FM receiver with a trackable IF filter and circuit arrangement for carrying out the process (sic!)