With the release of the enhanced wsprd decoder, I have published version
2.9g of my  'wsprdaemon' system (http://wsprdaemon.org/)  and upgraded some
of the 25+ WD sites to run it.

In addition to running wsprd 2.2.1, wsprdaemon can run both that new wsprd
and old wsprd 2.1.x and compare the number of spots extracted by them from
the same 2 minute wav file.
Unfortunately, the Raspberry Pi4 at worldwide top spotter OE9GHV doesn't
have quite enough CPU power to execute both wsprds (i.e. complete execution
of 48 wsprds in one 2 minute wspr cycle) on all of the 24 antenna+band
receive channels at that site.

However at US top spotter KD2OM the i86 CPU running WD has no problem
performing the 66 decodes required to document the decode performance on
the 33 antenna+channels at that site
You can see in the following table of spots decoded in the last 16 hours at
KD2OM, that the 20M DI (dipole) antenna channel decoded almost 6% more
spots using the new wsprd, while on other bands the difference is in the
range of 2.5-4.5%.

So my question is:  would a change to the flags passed to the new
wsprd further enhance decode performance, even if it costs more CPU time?
I am currently passing the same flags and values to 2.2.1 as I do to 2.1.1,
e.g. /usr/bin/wsprd -c -C 5000 -o 4 -f 14.0956 200611_2036.wav
During the transition from 2.0.x to 2.1.x Steve suggested adding '-o 4'.
Would the performance of the 2.2.1 wsprd benefit from a similar change?

Thanks,

Rob


plex@Plexserver:~$ show-spots
BAND ANT NEW_WSPRD OLD_WSPR
  10  BE    9 new    9 old   0.00%
  10  DI   21 new   20 old   5.00%
  10  VE    4 new    4 old   0.00%
  12  BE    1 new    1 old   0.00%
  12  DI    5 new    5 old   0.00%
  15  BE   91 new   91 old   0.00%
  15  DI  124 new  122 old   1.64%
  15  VE   95 new   95 old   0.00%
  17  BE   95 new   95 old   0.00%
  17  DI  416 new  413 old   0.73%
  17  VE  120 new  119 old   0.84%
  20  BE 1992 new 1953 old   2.00%
  *20  DI 4304 new 4073 old   5.67%*
  20  VE 2351 new 2297 old   2.35%
  30  BE 1563 new 1514 old   3.24%
  30  DI 2968 new 2874 old   3.27%
  30  VE 1853 new 1812 old   2.26%
  40  BE 3126 new 3048 old   2.56%
  40  DI 3625 new 3555 old   1.97%
  40  VE 2758 new 2700 old   2.15%
  60  BE    6 new    5 old   20.00%
  60  DI    0 new    0 old   -nan%
60eu  BE    8 new    7 old   14.29%
60eu  DI    2 new    2 old   0.00%
  80  BE  296 new  283 old   4.59%
  80  DI  523 new  505 old   3.56%
80eu  BE   85 new   83 old   2.41%
80eu  DI  104 new  104 old   0.00%
 160  BE  211 new  192 old   9.90%
 160  DI  242 new  240 old   0.83%
 630  BE  108 new  101 old   6.93%
 630  DI   25 new   25 old   0.00%
2200  BE   17 new   14 old   21.43%
plex@Plexserver:~$

-- 
Rob Robinett
AI6VN
[email protected]
mobile: +1 650 218 8896
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