Jakob Ketterl 46c78f6463 avoid demodulator concurrency
* this frees up resources used by the current demodulator before
  starting a new one
* this addresses an issue where users of single-channel AMBE sticks
  could not seamlessly switch between digital modes
2021-12-23 16:32:51 +01:00
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2021-12-23 16:32:51 +01:00
2021-09-27 18:53:49 +02:00