Embedded Computing Design

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NatureDSP 4FSK

IntegrIT — March 2007

NatureDSP 4FSK

is software data pump for 4FSK/C4FM data transmission over UHF channels

  • Supports both 4800/9600 bps PMR/LMR modes and 9600 bps APCO P25 mode
  • Fast synchronization on two user-selectable bit patterns or by soft decision threshold
  • Flexible test pattern generator and BER tester
  • Log-likelihood soft decision output compatible with DVSI AMBE vocoder data format
  • Adaptive adjustment of RX deviation
  • Library for MS Visual Studio for free enables development under PC environment

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