[CQ-Contest] E2E is real

Marijan Miletic, S56A s56a at bit.si
Wed Feb 20 08:46:34 EST 2013


E2E is no problem at all as two dashes are strongly against string of dots
high probability.  One can eliminate all EISH5 dot combinations losing about
14 callsigns from master.dta not including recent ES5HS!

 

Skimmer uses spectral analysis and strong signals have a lot of artifacts,
even cliks!  So E insertion error is frequent.

 

HF QSB can be up to 120 dB/sec causing omission errors.  Skimmer is very
good on both using Bayesian statistics.

 

Just be bit humble on our OF typos so frequent on DX Clusters before VE3NEA
CW Skimmer.

 

LP MMM S56A, N1YU decoding HF CW by PC DSP since 1988.

 

 

 



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