Re: [Discuss-gnuradio] BPSK, Costas loop

[Robert Kelley]

That's a great source of information about PSK31, thanks.

I am especially interested in using gnuradio for PSK31.

The URL is wrong, it's psk31.htm but I found it anyway.

Chuck Swiger wrote:

> At 03:09 AM 3/31/2005 -0500, you wrote:
>
>> Hey everyone,
>>
>> I think I have a semi-decent implementation of BPSK modulation and
>> demodulation (via a Costas loop). I wrote up some details about it at
>> http://web.mit.edu/imirkin/www/gnuradio/bpsk.html . It seems to work
>> with the script that I was testing it with, but I haven't actually tried
>> anything OTA or with any *real* drift and so on. This applies into the
>> gnuradio-core tree directly.
>
>
> Hey - looks good - here's a plot of  0000 0000  1010 1010  0101...
>
>
> http://webpages.charter.net/cswiger/bpsk.jpg
>
> I would be interested in using that with this description of psk31
>
> http://home.teleport.com/~nb6z/psk31.html
>
> to create a transmitter completely within gnuradio.
> (currently I'm looping audio from linpsk)
>
> Any better links to psk31 details appreciated.
>
> --Chuck
>
>
>
>
>
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