Re: [Discuss-gnuradio] PSK31 (from audio to radio)

On 09/19/2016 05:46 AM, pen tester wrote:
> Hi Ron,
> Thank you for that tx grc graph, it is super helpful!
>
> I am just trying to get a receive work now. I am using the 6_psk.grc
> from the tutorial folder in the github repo you were using [1].
>
> I have modified mine for using a hackrf on tx side and on rx side I
> modified to use the same sample rate and freq as your tx graph. I added
> a slider to help tune in to the freq, but I haven't had luck decoding
> yet - did you have a working rx graph you were using for testing?
>
> Thanks again! :-)
>
> [1] https://github.com/argilo/sdr-examples/tree/master/tutorial

psk31.grc is BPSK and 6_psk.grc is QPSK.

You should put both the transit and receive in the same file without the
osmocom source and sink - connect the transmit and receive with a link -
cut out the hardware.

Then debug the encoding and decoding.

Otherwise, it may be hard to figure out if the problem is
encoding/decoding or timing, frequency or phase issues with the hardware.

>
>
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