[GreenKeys] ITTY to real Teletype
Rob Jarratt
robert.jarratt at ntlworld.com
Mon Nov 11 03:03:48 EST 2024
Hello John,
I tried piping this into minimodem following the suggestions using curl that I received before, but it doesn't seem to work. This is what I tried
mpg123 http://internet-tty.net:8000/ITTY -q -s | minimodem rtty -i -a -q --rx-one -R 11025 -f -
There was no output from this command (other than some header information). Am I missing something?
Thanks
Rob
> -----Original Message-----
> From: greenkeys-bounces at mailman.qth.net <greenkeys-
> bounces at mailman.qth.net> On Behalf Of John Spigel
> Sent: 11 November 2024 03:10
> To: greenkeys at mailman.qth.net
> Subject: Re: [GreenKeys] ITTY to real Teletype
>
> Rob, I have several very simple shell scripts here for running the different ITTY
> sources or printing files for RazPi.
>
> https://w1an.com/files/tty-shell-scripts
>
> The ITTY for US runs continuously.
> Maybe see if they are of use to you.
>
> 73, John W1AN
>
> On 10-Nov-24 13:03, Rob Jarratt via GreenKeys wrote:
> > Looks like curl -N should do the trick them without me having to write
> > a special program to keep it running. I wish I had checked the other
> > feeds before assuming curl just exits after every message!
> >
> > Regards
> >
> > Rob
> >
> > *From:*Paul Heller <paul0926 at comcast.net>
> > *Sent:* 10 November 2024 14:40
> > *To:* rob at jarratt.me.uk; Rob Jarratt <robert.jarratt at ntlworld.com>
> > *Cc:* Hugh Pyle <hughpyle at gmail.com>; Jeffrey Golas
> > <jeffg at junknet.net>; Mailing List Green Keys
> > <GreenKeys at mailman.qth.net>
> > *Subject:* Re: [GreenKeys] ITTY to real Teletype
> >
> > That is strange that the Europe channel is ok and the ITTY channel is
> > not. I’d like to resolve this.
> >
> > The ITTY channels each have a footer transmission after the main
> > transmission. Maybe the footers are different. I will look into this
> > later today.
> >
> > Paul
> > W2TTY
> >
> >
> > On Nov 10, 2024, at 1:52 PM, Rob Jarratt via GreenKeys
> > <greenkeys at mailman.qth.net <mailto:greenkeys at mailman.qth.net>>
> wrote:
> >
> >
> >
> > I have been trying these suggestions using curl to receive ITTY and
> > pipe it through lame and minimodem. It works well.
> >
> > However, I didn’t like that curl exits after every message. So, I
> > thought I would try to write my own code that keeps going, using
> > libcurl, which is what curl is built from.
> >
> > I discovered though that the ITTY feed does something strange and it
> > causes curl (and libcurl) to just silently exit at the end of a
> > message. It never reaches my cleanup code, it just dies. I thought
> > it was a problem with my code, but I don’t think it is, there is
> > something specifically wrong with http://internet-tty.net:8000/ITTY
> > <http://internet-tty.net:8000/ITTY> that cause curl to die. I have
> > been trying to work it out but have not found the issue yet. Is
> > anyone aware of anything peculiar about the ITTY feed? It doesn’t
> > seem to happen for the EUROPE feed, I am not sure yet about
> > AUTOSTART and it is able to repeatedly download other URLs
> > (www.example.com <http://www.example.com> for example).
> >
> > Thanks
> >
> > Rob
> >
> > *From:*greenkeys-bounces at mailman.qth.net <mailto:greenkeys-
> > bounces at mailman.qth.net><greenkeys-bounces at mailman.qth.net
> > <mailto:greenkeys-bounces at mailman.qth.net>> *On Behalf Of *Hugh
> Pyle
> > *Sent:* 07 October 2024 20:06
> > *To:* Jeffrey Golas <jeffg at junknet.net <mailto:jeffg at junknet.net>>
> > *Cc:* Mailing List Green Keys <GreenKeys at mailman.qth.net
> > <mailto:GreenKeys at mailman.qth.net>>; rob at jarratt.me.uk
> > <mailto:rob at jarratt.me.uk>
> > *Subject:* Re: [GreenKeys] ITTY to real Teletype
> >
> > Here are some aliases, which combine 'curl', 'lame' and
> > 'minimodem'. I haven't run these unattended for a while, and I
> > seem to remember there are dropout situations that will break them
> > easily - so you could then wrap everything in a loop if necessary.
> > But they might make a good starting point for you.
> >
> >
> > alias autostart='curl -N -s http://internet-tty.net:8030/AUTOSTART
> > <http://internet-tty.net:8030/AUTOSTART> | lame --decode --quiet --
> > mp3input - - | minimodem rtty -i -a -q -R 11025 -f -'
> > alias europe='curl -N -s internet-tty.net:8040/EUROPE <http://
> > internet-tty.net:8040/EUROPE> | lame --decode --quiet --mp3input - -
> > | minimodem 50 -M 1275 -S 1445 -5 -i -a -q -R 11025 -f -'
> > alias itty='curl -N -s http://internet-tty.net:8000/ITTY <http://
> > internet-tty.net:8000/ITTY> | lame --decode --quiet --mp3input - - |
> > minimodem rtty -i -a -q --rx-one -R 11025 -f -'
> >
> > Hugh
> >
> > On Sun, Oct 6, 2024 at 10:15 AM Jeffrey Golas <jeffg at junknet.net
> > <mailto:jeffg at junknet.net>> wrote:
> >
> > Vlc to get the stream, minimodem to decode.
> >
> > Jeff
> >
> > > On Oct 6, 2024, at 3:18 AM, Rob Jarratt
> > <robert.jarratt at ntlworld.com
> > <mailto:robert.jarratt at ntlworld.com>> wrote:
> > >
> > > Hello,
> > >
> > > Dave was asking this on my behalf, probably unaware that I am
> > on this list too.
> > >
> > > I have seen mention of ITTY Autostart etc and wondered about
> > receiving all this on my ASR 33.
> > >
> > > My thought was to see if I could set up a Raspberry Pi to
> > receive the audio signal over the internet, translate that to
> > ASCII and then send it to my ASR33. I already have the means to
> > connect my ASR33 from software running on a Raspberry PI or a PC
> > via reverse Telnet. The bit I am missing is what software (if
> > any) there might be that I could run on a Raspberry Pi, or
> > Windows that runs in the background (no GUI) to decode the ITTY
> > audio signal. I am a software developer though, so I guess if
> > such a thing doesn't exist then perhaps I can modify the MMTTY
> > code that is published on GitHub.
> > >
> > > Any pointers would be welcome.
> > >
> > > Thanks
> > >
> > > Rob
> > >
> > >> -----Original Message-----
> > >> From: greenkeys-bounces at mailman.qth.net <mailto:greenkeys-
> > bounces at mailman.qth.net> <greenkeys-
> > >> bounces at mailman.qth.net <mailto:bounces at mailman.qth.net>>
> On
> > Behalf Of Jeffrey Golas
> > >> Sent: 06 October 2024 05:30
> > >> To: David Wade <dave.g4ugm at gmail.com
> > <mailto:dave.g4ugm at gmail.com>>
> > >> Cc: Mailing List Green Keys <GreenKeys at mailman.qth.net
> > <mailto:GreenKeys at mailman.qth.net>>
> > >> Subject: Re: [GreenKeys] ITTY to real Teletype
> > >>
> > >> Normally the ITTY service is fed to a piece of hardware
> > called a terminal unit
> > >> (think modem). The service is streaming as RTTY which is
> > normally sent over
> > >> amateur radio.
> > >>
> > >>
> > >> Jeff
> > >>
> > >>>> On Oct 5, 2024, at 5:34 PM, David Wade
> > <dave.g4ugm at gmail.com <mailto:dave.g4ugm at gmail.com>> wrote:
> > >>>
> > >>> I know there have been several USB to TTY boards produced,
> > but what
> > >> software would you use to drive one of these from itty?
> > >>>
> > >>> Dave
> > >>>
> > >>> G4UGM
> > >>>
> > >>>
> ______________________________________________________________
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> > gksearch> 2002-to-present greenkeys archive:
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> > >>>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
> > >>>>>> http://comcents.com/tty/greenkeyssearch.html <http://
> > comcents.com/tty/greenkeyssearch.html>
> > >>>
> > >>> This list hosted by: http://www.qsl.net <http://
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> > >>
> ______________________________________________________________
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> > mailman.qth.net/mmfaq.htm>
> > >> Post: mailto:GreenKeys at mailman.qth.net
> > <mailto:GreenKeys at mailman.qth.net>
> > >>
> > >>>>> Jordan Spencer Cunningham's GreenKeys Search Tool:
> > >>>>> https://teletype.net/gksearch <https://teletype.net/
> > gksearch> 2002-to-present greenkeys archive:
> > >>>>> http://mailman.qth.net/pipermail/greenkeys/ <http://
> > mailman.qth.net/pipermail/greenkeys/>
> > >>>>> 1998-to-2001 greenkeys archive:
> > >>>>> http://mailman.qth.net/archive/greenkeys/greenkeys.html
> > <http://mailman.qth.net/archive/greenkeys/greenkeys.html>
> > >>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
> > >>>>> http://comcents.com/tty/greenkeyssearch.html <http://
> > comcents.com/tty/greenkeyssearch.html>
> > >>
> > >> This list hosted by: http://www.qsl.net <http://www.qsl.net>
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> > >> delivered to robert.jarratt at ntlworld.com
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> > >
> >
> ______________________________________________________________
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> > mmfaq.htm>
> > Post: mailto:GreenKeys at mailman.qth.net
> > <mailto:GreenKeys at mailman.qth.net>
> >
> > >>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://
> > teletype.net/gksearch <https://teletype.net/gksearch>
> > >>> 2002-to-present greenkeys archive: http://mailman.qth.net/
> > pipermail/greenkeys/ <http://mailman.qth.net/pipermail/greenkeys/>
> > >>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/
> > archive/greenkeys/greenkeys.html <http://mailman.qth.net/
> > archive/greenkeys/greenkeys.html>
> > >>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://
> > comcents.com/tty/greenkeyssearch.html <http://comcents.com/tty/
> > greenkeyssearch.html>
> >
> > This list hosted by: http://www.qsl.net <http://www.qsl.net>
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> > <mailto:GreenKeys at mailman.qth.net>
> >
> >
> > Jordan Spencer Cunningham's GreenKeys Search Tool:
> > https://teletype.net/gksearch <https://teletype.net/
> > gksearch>
> >
> > 2002-to-present greenkeys archive: http://
> > mailman.qth.net/pipermail/greenkeys/ <http://
> > mailman.qth.net/pipermail/greenkeys/>
> >
> > 1998-to-2001 greenkeys archive: http://mailman.qth.net/
> > archive/greenkeys/greenkeys.html <http://
> > mailman.qth.net/archive/greenkeys/greenkeys.html>
> >
> > Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
> > http://comcents.com/tty/greenkeyssearch.html <http://
> > comcents.com/tty/greenkeyssearch.html>
> >
> >
> > This list hosted by: http://www.qsl.net <http://www.qsl.net>
> > Please help support this email list: http://www.qsl.net/donate.html
> > <http://www.qsl.net/donate.html>
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> >
> >
> > ______________________________________________________________
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> > Post: mailto:GreenKeys at mailman.qth.net
> >
> >>>> Jordan Spencer Cunningham's GreenKeys Search Tool:
> >>>> https://teletype.net/gksearch 2002-to-present greenkeys archive:
> >>>> http://mailman.qth.net/pipermail/greenkeys/
> >>>> 1998-to-2001 greenkeys archive:
> >>>> http://mailman.qth.net/archive/greenkeys/greenkeys.html
> >>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
> >>>> http://comcents.com/tty/greenkeyssearch.html
> >
> > This list hosted by: http://www.qsl.net Please help support this email
> > list: http://www.qsl.net/donate.html Message delivered to
> > w1an.dxusa at gmail.com
>
> ______________________________________________________________
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> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
>
> >>> Jordan Spencer Cunningham's GreenKeys Search Tool:
> >>> https://teletype.net/gksearch 2002-to-present greenkeys archive:
> >>> http://mailman.qth.net/pipermail/greenkeys/
> >>> 1998-to-2001 greenkeys archive:
> >>> http://mailman.qth.net/archive/greenkeys/greenkeys.html
> >>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
> >>> http://comcents.com/tty/greenkeyssearch.html
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html Message
> delivered to robert.jarratt at ntlworld.com
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