[Fwd: LF: PSK31 tests.]

Andre Kesteloot akestelo@bellatlantic.net
Sat, 07 Mar 1998 18:08:27 -0500

Charles Brain wrote:

> Peter Martinez wrote:
> > QPSK use the same bandwidth and transmission rate. This doesn't
> > mean that the error-correction could be improved but confirms my
> > findings that when the noise is random, it pays to transmit the raw
> Isn't it more accurate to say that below a certain threshold Eb/No (about 4db)
> uncoded BPSK will outperform coded QPSK. However above that threshold the
> reverse is true and also that if you had used soft decision decoding you would
> have seen up to 2db more coding gain ? I also seem to remember you are also using
> a very short constraint length code in your software.
> - Charles