Re: Coexistence of Gnuradio 3.7 and 3.8 on one PC

[Harald Fritzsche (DD0VS)]

Hello Barry, all,

thanks for your support. I will push my question to my stack.
I will make use of my existing system on base of GR37 and will come back
with another question in a separate thread.

Regards and VY73
Harald
DD0VS

Am Wed, 25 Dec 2019 14:18:28 -0500
schrieb Barry Duggan :

> Hi Harald,
> 
> I did not include UHD when I used my rPI 3B+. It did work with a
> laptop and Ubuntu 18.04.
> 
> Maybe some of the others will know more more.
> 
> ---
> Barry Duggan KV4FV
> 
> 

Generating CW-morse signals with a straight key

[Harald Fritzsche (DD0VS)]

Hello All,

Hoping that amateur radio is not to far away from common use of
Gnuradio mailing list, but amateur radio is making me looking to GR
since 2001.
There is a plan to use a Gnuradio based transceiver for µ-wave
contesting, as it has been shown by W7FU or KB1VC (SoDaRadio) or DL9SW.
A needed condition is, to key HF with morse code using a straigth or
simple morse key.

Doing this with just looking to the status of /dev/ttyUSB0-CTS pin is
not sufficient, basically some of the keyed code is somehow swalloed.
Neither with python code or with a C++ OOT module i got it solved. 

How to get this solved? (Hardware keying or modulated cw is not a real
option).

Regards and vy73
Harald
DD0VS

Re: Generating CW-morse signals with a straight key

[Gorkem Ozcelebi]

If I've understood your question correctly, how about the microphone /
audio input? If it's ac-coupled, you could use a simple oscillator. The
presence of the tone, gated by your morse key, triggers the cw. If you
don't want to build / provide an external oscillator,  how about a software
oscillator fed through one of the audio output channels of the same PC,
going back in thru your morse key. The other audio channel is left
available for the audio output of your receiver.

Gorkem

On Sat, Dec 28, 2019, 7:25 PM Harald Fritzsche (DD0VS) 
wrote:

> Hello All,
>
> Hoping that amateur radio is not to far away from common use of
> Gnuradio mailing list, but amateur radio is making me looking to GR
> since 2001.
> There is a plan to use a Gnuradio based transceiver for µ-wave
> contesting, as it has been shown by W7FU or KB1VC (SoDaRadio) or DL9SW.
> A needed condition is, to key HF with morse code using a straigth or
> simple morse key.
>
> Doing this with just looking to the status of /dev/ttyUSB0-CTS pin is
> not sufficient, basically some of the keyed code is somehow swalloed.
> Neither with python code or with a C++ OOT module i got it solved.
>
> How to get this solved? (Hardware keying or modulated cw is not a real
> option).
>
> Regards and vy73
> Harald
> DD0VS
>
>

Re: Generating CW-morse signals with a straight key

[Albin Stigö]

I did extensive experimentation with this and it's tricky to get the timing
good enough with GPIO.

Like Gorkem says mic/line is a good option. You can connect an oscillator
and just send a tone in, filter this and then just send it as "SSB" as a
pure tone in SSB is just a carrier. You can also key a DC bias after the AC
coupling and generate the tone on software.

Good luck 73s Albin SM6WJM

On Sat, Dec 28, 2019, 20:06 Gorkem Ozcelebi  wrote:

> If I've understood your question correctly, how about the microphone /
> audio input? If it's ac-coupled, you could use a simple oscillator. The
> presence of the tone, gated by your morse key, triggers the cw. If you
> don't want to build / provide an external oscillator,  how about a software
> oscillator fed through one of the audio output channels of the same PC,
> going back in thru your morse key. The other audio channel is left
> available for the audio output of your receiver.
>
> Gorkem
>
> On Sat, Dec 28, 2019, 7:25 PM Harald Fritzsche (DD0VS) 
> wrote:
>
>> Hello All,
>>
>> Hoping that amateur radio is not to far away from common use of
>> Gnuradio mailing list, but amateur radio is making me looking to GR
>> since 2001.
>> There is a plan to use a Gnuradio based transceiver for µ-wave
>> contesting, as it has been shown by W7FU or KB1VC (SoDaRadio) or DL9SW.
>> A needed condition is, to key HF with morse code using a straigth or
>> simple morse key.
>>
>> Doing this with just looking to the status of /dev/ttyUSB0-CTS pin is
>> not sufficient, basically some of the keyed code is somehow swalloed.
>> Neither with python code or with a C++ OOT module i got it solved.
>>
>> How to get this solved? (Hardware keying or modulated cw is not a real
>> option).
>>
>> Regards and vy73
>> Harald
>> DD0VS
>>
>>

Re: Generating CW-morse signals with a straight key

[Frank Brickle]

Is there a JACK audio sink in Gnuradio these days?

I'm not sure where they are housed, now, but I wrote a few programs to
generate CW this way some years ago. They depended on having JACK audio
input to the application. One of them could use either a straight key or
would work as a decent iambic keyer. The other generated CW tone from text
input, either from a file or directly from stdin and therefore from a
keyboard.

If there were any interest I could probably dig up the source.

73
Frank
AB2KT/VE7


On Sat, Dec 28, 2019 at 11:06 AM Gorkem Ozcelebi  wrote:

> If I've understood your question correctly, how about the microphone /
> audio input? If it's ac-coupled, you could use a simple oscillator. The
> presence of the tone, gated by your morse key, triggers the cw. If you
> don't want to build / provide an external oscillator,  how about a software
> oscillator fed through one of the audio output channels of the same PC,
> going back in thru your morse key. The other audio channel is left
> available for the audio output of your receiver.
>
> Gorkem
>
> On Sat, Dec 28, 2019, 7:25 PM Harald Fritzsche (DD0VS) 
> wrote:
>
>> Hello All,
>>
>> Hoping that amateur radio is not to far away from common use of
>> Gnuradio mailing list, but amateur radio is making me looking to GR
>> since 2001.
>> There is a plan to use a Gnuradio based transceiver for µ-wave
>> contesting, as it has been shown by W7FU or KB1VC (SoDaRadio) or DL9SW.
>> A needed condition is, to key HF with morse code using a straigth or
>> simple morse key.
>>
>> Doing this with just looking to the status of /dev/ttyUSB0-CTS pin is
>> not sufficient, basically some of the keyed code is somehow swalloed.
>> Neither with python code or with a C++ OOT module i got it solved.
>>
>> How to get this solved? (Hardware keying or modulated cw is not a real
>> option).
>>
>> Regards and vy73
>> Harald
>> DD0VS
>>
>>

-- 
Tell me, what is it you plan to do with your one wild and precious life? --
Mary Oliver

Re: Generating CW-morse signals with a straight key

[Cinaed Simson]

Cool! I would definitely be interested in the last option "generated CW
tone from text input, either from a file"

-- Cinaed



On 12/28/19 11:18 AM, Frank Brickle wrote:
> Is there a JACK audio sink in Gnuradio these days?
> 
> I'm not sure where they are housed, now, but I wrote a few programs to
> generate CW this way some years ago. They depended on having JACK audio
> input to the application. One of them could use either a straight key or
> would work as a decent iambic keyer. The other generated CW tone from
> text input, either from a file or directly from stdin and therefore from
> a keyboard.
> 
> If there were any interest I could probably dig up the source.
> 
> 73
> Frank
> AB2KT/VE7
> 
> 
> On Sat, Dec 28, 2019 at 11:06 AM Gorkem Ozcelebi  > wrote:
> 
> If I've understood your question correctly, how about the microphone
> / audio input? If it's ac-coupled, you could use a simple
> oscillator. The presence of the tone, gated by your morse key,
> triggers the cw. If you don't want to build / provide an external
> oscillator,  how about a software oscillator fed through one of the
> audio output channels of the same PC, going back in thru your morse
> key. The other audio channel is left available for the audio output
> of your receiver.
> 
> Gorkem
> 
> On Sat, Dec 28, 2019, 7:25 PM Harald Fritzsche (DD0VS)
> mailto:dd...@dd0vs.de>> wrote:
> 
> Hello All,
> 
> Hoping that amateur radio is not to far away from common use of
> Gnuradio mailing list, but amateur radio is making me looking to GR
> since 2001.
> There is a plan to use a Gnuradio based transceiver for µ-wave
> contesting, as it has been shown by W7FU or KB1VC (SoDaRadio) or
> DL9SW.
> A needed condition is, to key HF with morse code using a straigth or
> simple morse key.
> 
> Doing this with just looking to the status of /dev/ttyUSB0-CTS
> pin is
> not sufficient, basically some of the keyed code is somehow
> swalloed.
> Neither with python code or with a C++ OOT module i got it solved.
> 
> How to get this solved? (Hardware keying or modulated cw is not
> a real
> option).
> 
> Regards and vy73
> Harald
> DD0VS
> 
> 
> 
> -- 
> Tell me, what is it you plan to do with your one wild and precious life?
> -- Mary Oliver

Re: Generating CW-morse signals with a straight key

[Frank Brickle]

All right. Give me a day or two and I think I can find an archive of all
that stuff to pass along.

73
Frank
AB2KT/VE7

On Sat, Dec 28, 2019 at 1:40 PM Cinaed Simson 
wrote:

> Cool! I would definitely be interested in the last option "generated CW
> tone from text input, either from a file"
>
> -- Cinaed
>
>
>
> On 12/28/19 11:18 AM, Frank Brickle wrote:
> > Is there a JACK audio sink in Gnuradio these days?
> >
> > I'm not sure where they are housed, now, but I wrote a few programs to
> > generate CW this way some years ago. They depended on having JACK audio
> > input to the application. One of them could use either a straight key or
> > would work as a decent iambic keyer. The other generated CW tone from
> > text input, either from a file or directly from stdin and therefore from
> > a keyboard.
> >
> > If there were any interest I could probably dig up the source.
> >
> > 73
> > Frank
> > AB2KT/VE7
> >
> >
> > On Sat, Dec 28, 2019 at 11:06 AM Gorkem Ozcelebi  > > wrote:
> >
> > If I've understood your question correctly, how about the microphone
> > / audio input? If it's ac-coupled, you could use a simple
> > oscillator. The presence of the tone, gated by your morse key,
> > triggers the cw. If you don't want to build / provide an external
> > oscillator,  how about a software oscillator fed through one of the
> > audio output channels of the same PC, going back in thru your morse
> > key. The other audio channel is left available for the audio output
> > of your receiver.
> >
> > Gorkem
> >
> > On Sat, Dec 28, 2019, 7:25 PM Harald Fritzsche (DD0VS)
> > mailto:dd...@dd0vs.de>> wrote:
> >
> > Hello All,
> >
> > Hoping that amateur radio is not to far away from common use of
> > Gnuradio mailing list, but amateur radio is making me looking to
> GR
> > since 2001.
> > There is a plan to use a Gnuradio based transceiver for µ-wave
> > contesting, as it has been shown by W7FU or KB1VC (SoDaRadio) or
> > DL9SW.
> > A needed condition is, to key HF with morse code using a
> straigth or
> > simple morse key.
> >
> > Doing this with just looking to the status of /dev/ttyUSB0-CTS
> > pin is
> > not sufficient, basically some of the keyed code is somehow
> > swalloed.
> > Neither with python code or with a C++ OOT module i got it
> solved.
> >
> > How to get this solved? (Hardware keying or modulated cw is not
> > a real
> > option).
> >
> > Regards and vy73
> > Harald
> > DD0VS
> >
> >
> >
> > --
> > Tell me, what is it you plan to do with your one wild and precious life?
> > -- Mary Oliver
>
>

-- 
Tell me, what is it you plan to do with your one wild and precious life? --
Mary Oliver

Re: Generating CW-morse signals with a straight key

[Harald Fritzsche (DD0VS)]

Dear Frank, ALbin, Gorkem and all others,

thanks for prompt and prominent answers.

@Frank: i am also interested on your SW, yes, i know DttSP, there is a
link inside to some JACK stuff. I need to say that i am not familiar
with that audio system. What i am understanding from some reading is,
that FLEX1000 (means DttSP) interacts internally via JACK audio system.
Now this gives me a hint, why this decision has been made.
Would be great for me to understand how this can work for gnuradio. I am
using a RPI4 currently. It seems to be tricky to get JACK running on
this devices.
(BTW: readings about Tayloe mixers some times ago restarts my interest
in HAM Radio :-)

@Albin, Gorkem: thanks for your input, i personally think the audio
solution (modulated CW) isn't that elegant, nevertheless, its not out
of scope for me.

For CW generated from text there is one solution on cgran, see
gr-satnogs and another solution (not running for me, since it needs
GR38) is from Barry: gr-morse-code-gen (github).

The last one is click free (acc. the grc graph).

Meanwhile i have a CW keyboard input programed based on gr-analog,
gr-satnogs and gr-morse-code-gen :-) But to attach a key ...

One comment: audio latency may not disturb to much, because the idea is
to attach an automated CW (contest logging program) to this keyer port.
Only in rare cases a paddle or key is needed, in this cases latency
must be accpeted. (also not elegant, i know)

Regards and vy73
Harald
DD0VS