[GreenKeys] ITTY to real Teletype
Rob Jarratt
robert.jarratt at ntlworld.com
Mon Nov 11 17:28:51 EST 2024
I want to decode the audio into text as you say. I will try these things when I have a bit more time. Thanks for the suggestions.
Regards
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 13:42
> To: greenkeys at mailman.qth.net
> Subject: Re: [GreenKeys] ITTY to real Teletype
>
> Hi Rob.
> Are you attempting to decode to audio and saving with minimodem to a text
> file or just send the ITTY FSK audio to your TU for printing? My shells only
> result in audio FSK for inputting to a TU and just work. I have no experience
> with piping mpg to minimodem for saving although I will definitelly try when
> time permits. If saving to a file you may need to provide a file type for
> saving? .txt? or remove the -f just to print to screen as first step. Also you
> might try without the "-i" as it may undo the -a auto mark/space detect. And
> try removing the -one, -R 11025, etc., until you get the basics working. Using
> defaults should be the place to start and may be all you need. And I don't use
> curl at all.
>
> 73, John W1AN
>
> On 11-Nov-24 03:03, Rob Jarratt wrote:
> > 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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> >>> <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://
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> >>> >>
> >>
> ______________________________________________________________
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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/
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> >>> >> delivered to robert.jarratt at ntlworld.com
> >>> <mailto:robert.jarratt at ntlworld.com>
> >>> >
> >>>
> >>
> ______________________________________________________________
> >>> GreenKeys mailing list
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> >>> Help: http://mailman.qth.net/mmfaq.htm <http://mailman.qth.net/
> >>> mmfaq.htm>
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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>
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> >>>
> >>>
> >>
> ______________________________________________________________
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> >>> mmfaq.htm>
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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
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> >>>
> >>>
> >>>
> ______________________________________________________________
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> >>>
> >>>>>> 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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> 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
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