[Ham-Mac] fldigi 4.2.06.17 posted for testing

[w1hkj]

http://www.w1hkj.com/alpha/fldigi/ <http://www.w1hkj.com/alpha/fldigi/>

  * fldigi-4.2.06.17.dmg
    <http://www.w1hkj.com/alpha/fldigi/fldigi-4.2.06.17.dmg>
  * fldigi-4.2.06.17.tar.gz
    <http://www.w1hkj.com/alpha/fldigi/fldigi-4.2.06.17.tar.gz>
  * fldigi-4.2.06.17_setup.exe
    <http://www.w1hkj.com/alpha/fldigi/fldigi-4.2.06.17_setup.exe>

Change to THOR-25 modem, increasing interleave depth to 1 second.  NOT 
compatible with previous test releases.  This change should improve the 
decoder under NVIS conditions, such as Mid-Latitue disturbed:

     THOR-25

       * add new THOR modem with following characteristics
         . symlen = 320
         . samplerate = 8000
         . flushlength = 20
         . bandwidth = 460
*        . interleave depth = 25, 1 second**
*        . IEEE coefficients for viterbi encode/decode algorithms
           THOR_K15  15
           K15_POLY1 044735
           K15_POLY2 063057
         . objective to provide highest baud within 500 Hertz bandwidth for
           European amateurs
           .CPS test text:
              "0123456789
               abcdefghijklmnopqrstuvwxyz
               ABCDEFGHIJKLMNOPQRSTUVWXYZ"
              number chars:      66
              overhead:     6.480000 sec
              xmt time:     10.280000 sec
              xmt samples:  134080
              chars/sec:    6.42
       * assigned secondary RsID code 691 to THOR-25
       * increased flush length for all THOR baud rates
       * added configurable start and end of signal shaping to these 
modem types:
         . dominoEX
         . psk
         . mfsk
         . rtty
         . thor
         . selectable on configuration tab Modem/General
       * restored selectable paths to all THOR modem types

Bench tests with the above test parameters produced 100% decode.

73, David
W1HKJ