Re: [Discuss-gnuradio] Create a general block using a GRC 'misc Python block'

Thanks Albin,

This is a work in progress - there are several things I plan to do.

Yes, as it stands, it needs the filter for key clicks. I had tried to
send the keying signal to a GPIO pin and do the key click filtering in
hardware, but the timing didn't work out right.

I must give credit to Marcus Mueller for the repeat block method. He
suggested that when I was building my RTTY terminal unit.

Please explain "You can use the rotator block to generate a complex tone
to send morse
code with an SDR transmitter." The more I can do in GR, the better ;)

My next steps are:
1) Create a QT GUI for text input to replace stdin.
2) Add a QT GUI Range knob to set the frequency of the audio. My thought
is that it could be used as fine tuning / offset tuning of the
transmitter. If I use a crystal in the middle of the CW portion of 80 or
40 meters and switch between upper and lower sidebands, it would cover a
lot of the allocation. It's an interesting alternative to frequency
synthesis.
3) Handle characters which are not in the code table.

I welcome all ideas and contributions!
---
Barry Duggan KV4FV

P.S. Maybe we should make a new thread. This subject line doesn't
reflect the current content.

On 2019-09-09 06:18, Albin Stigö wrote:
> Nice!
>
> I like the way you generate morse code using the repeat block!
>
> I don't see that the keying is filtered in any way which will lead to
> clicks... some kind of symbol filter would be nice!
> You can use the rotator block to generate a complex tone to send morse
> code with an SDR transmitter.
>
>
> --Albin
>
> On Sun, Sep 8, 2019 at 6:39 PM Barry Duggan <barry@dcsmail.net> wrote:
>>
>> FYI, I have created a repository for my Morse code generator:
>> https://github.com/duggabe/gr-morse-code-gen
>>
>> Cheers!
>> --
>> Barry Duggan
>>
>> On Fri, 23 Aug 2019 10:00:15 -0400, Barry Duggan wrote:
>>
>> <snip>
>> If you are interested in the finished Morse code generator, see
>> https://pastebin.com/XJqDzh6K
>>
>> _______________________________________________
>> Discuss-gnuradio mailing list
>> Discuss-gnuradio@gnu.org
>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

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