- The original idea and implementation of the NEWQPSK modulation by
  Pawel Jalocha, SP9VRC <pawel.jalocha@cern.org> (Motorola 56000 assembler).

- The usermode soundmodem framework by Thomas Sailer, HB9JNX
  <sailer@ife.ee.ethz.ch>.

- The modem code ported to C and Thomas' soundmodem code by Tomi Manninen,
  OH2BNS <tomi.manninen@hut.fi>. 
