Fwd: Update on Amateur Data

Steve s.monsey at att.net
Fri Feb 19 17:34:10 PST 2010


This is fantastic news! Can't wait to try it.

Steve N0FPF

On 2/19/2010 2:26 PM, Bill V WA7NWP wrote:
> An update from John.  He was the one working on a 6 meter OFDM system
> as part of the HSMM project.  It's nice to see the work continues and
> we may eventually get something capable of wider data than the ID-1.
>
>
> 73
> Bill - WA7NWP
>
>
> ---------- Forwarded message ----------
> From: John<kd6ozh
> Date: Fri, Feb 19, 2010 at 1:52 PM
> Subject: Re: Amateur Data
>
>
>
> The lastest version of the OFDM modem moves the microprcessor into the
> FPGA and is switchable between 9600 bps and 1.2 Mbps (using 6 and 800
> kHz bandwidths). The winter 2009 TAPR newsletter has a description of
> the soft processor and this is augmented by dedicated logic that does
> most of the signal processing for analog voice and OFDM. It works
> nicely between 2 boards on the bench with a multipath simulator but
> I'm still experimenting with the outer error-correcting code to make
> it more suitable for HF at 9600 bps. I should be ready to do more
> on-air testing in a few weeks.
>
> 73,
>
> John
> KD6OZH
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>    


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