RE: 300bps Packet (and EHAS) - what is pam, psk, and newpsk,

[Tomi Manninen <tomi.manninen@xxxxxxxxxxxxx>]

Tsutsumi Family [oakie@xxxxxxxxxxxxxxxxx] kirjoitti: 

> Are you the Tomi Manninen who implemented the NEWQPSK protocol to the
> soundmodem?

Yes.

> If so, I wish to hear technical comments on the efforts of EHAS program to
> improve the codes developed by the Tomi described in the following article
> titled "Low cost E-mail over HF with OFDM and turbo coding techniques".
>
> http://download.ehas.org/misc/articulo_HF.pdf

Yes, back when Arnau was developing this, we did some co-operation.
At the time Arnau contacted me, I had already done some experiments
in improving the framing and FEC. Arnau did a great job implementing
Turbo, soft decision sampling etc. Unfortunately I never had time nor
anyone to test it with on ham bands (Arnau is not a ham and the
general interest on newqpsk and packet had already declined here).

But I think the code is available on a SVN server at EHAS.

/Tomi, oh2bns

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