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  • [echoirlp] Can the IRLP COSLOCK be changed?

    From stevenvk2stg@gmail.com@432:1/101 to echoirlp@groups.io on Mon Jun 7 03:13:12 2021
    Hi, new question.
    I'm not sure if this the right place for this question - but maybe someone can help.
    Every Sunday here, we relay the WIA weekly amateur news bulletin through the VK2RFS repeater. As the news runs for 30min we disable the repeater timeout (normally 3min) and use a transceiver connected to a PC to play the bulletin MP3 file.
    This has always worked fine - but! Now we have the EchoIRLP node, last Sunday a
    club member tried to listen via Echolink and found it dropped out after a fairly short time.
    We also heard an error message about the 'COS lockout' when we stopped transmitting at the end. I looked into this and as far as I can tell it's a 'hardwired' feature of the Rpi based IRLP system to reset the node after 4 min of the the COS being open, to prevent problems with interference, equipment failure etc.
    Any ideas, anyone, on how to set things up so that Echolink users can listen to
    the whole 30min bulletin?

    Thanks,
    Steven VK2STG and the Snowy Mountains Amateur Radio Club.


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  • From David McAnally@432:1/101 to echoirlp@groups.io on Mon Jun 7 05:33:59 2021
    The COS lockout is an IRLP feature, not part of EchoIRLP. Refer to < http://www.irlp.net/err-codes.html>. There is no method to disable the COS LOCKOUT timer. Its purpose is to prevent the node from locking up remote systems. Even if it could be disabled, most remote nodes would still
    timeout their transmitters.

    Best practice is to break up audio feeds such as you described so as to interrupt the transmission every two to three minutes to allow
    radios/repeaters to unkey and reset their timeout timers. This may also
    prevent radios from overheating that are not designed for 100% duty cycle.
    You may find scripts to break up audio file transmissions like these. The
    ARRL and ARNewsline include audio reminders and pauses to allow for
    unkeying within the audio file.

    David M.
    WD5M


    On Mon, Jun 7, 2021 at 12:13 AM <stevenvk2stg@gmail.com> wrote:

    Hi, new question.
    I'm not sure if this the right place for this question - but maybe someone can help.
    Every Sunday here, we relay the WIA weekly amateur news bulletin through
    the VK2RFS repeater. As the news runs for 30min we disable the repeater timeout (normally 3min) and use a transceiver connected to a PC to play the bulletin MP3 file.
    This has always worked fine - but! Now we have the EchoIRLP node, last
    Sunday a club member tried to listen via Echolink and found it dropped out after a fairly short time.
    We also heard an error message about the 'COS lockout' when we stopped transmitting at the end. I looked into this and as far as I can tell it's a 'hardwired' feature of the Rpi based IRLP system to reset the node after 4 min of the the COS being open, to prevent problems with interference, equipment failure etc.
    Any ideas, anyone, on how to set things up so that Echolink users can
    listen to the whole 30min bulletin?

    Thanks,
    Steven VK2STG and the Snowy Mountains Amateur Radio Club.








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  • From Steven VK2STG@432:1/101 to echoirlp@groups.io on Mon Jun 7 23:50:30 2021
    Hi David,
    Thanks for the info, all understood. We have actually discussed inserting breaks, so that's probably the way to go.
    One idea, I think I read somewhere that audio files can be played back in
    the IRLP software - would that get around the COS timer?
    Just wondering.

    On Mon, 7 Jun 2021 at 15:34, David McAnally <David.McAnally@gmail.com>
    wrote:

    The COS lockout is an IRLP feature, not part of EchoIRLP. Refer to < http://www.irlp.net/err-codes.html>. There is no method to disable the COS LOCKOUT timer. Its purpose is to prevent the node from locking up remote systems. Even if it could be disabled, most remote nodes would still
    timeout their transmitters.

    Best practice is to break up audio feeds such as you described so as to interrupt the transmission every two to three minutes to allow radios/repeaters to unkey and reset their timeout timers. This may also prevent radios from overheating that are not designed for 100% duty cycle. You may find scripts to break up audio file transmissions like these. The ARRL and ARNewsline include audio reminders and pauses to allow for
    unkeying within the audio file.

    David M.
    WD5M


    On Mon, Jun 7, 2021 at 12:13 AM <stevenvk2stg@gmail.com> wrote:

    Hi, new question.
    I'm not sure if this the right place for this question - but maybe
    someone
    can help.
    Every Sunday here, we relay the WIA weekly amateur news bulletin through the VK2RFS repeater. As the news runs for 30min we disable the repeater timeout (normally 3min) and use a transceiver connected to a PC to play
    the
    bulletin MP3 file.
    This has always worked fine - but! Now we have the EchoIRLP node, last Sunday a club member tried to listen via Echolink and found it dropped
    out
    after a fairly short time.
    We also heard an error message about the 'COS lockout' when we stopped transmitting at the end. I looked into this and as far as I can tell
    it's a
    'hardwired' feature of the Rpi based IRLP system to reset the node after
    4
    min of the the COS being open, to prevent problems with interference, equipment failure etc.
    Any ideas, anyone, on how to set things up so that Echolink users can listen to the whole 30min bulletin?

    Thanks,
    Steven VK2STG and the Snowy Mountains Amateur Radio Club.














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  • From David McAnally@432:1/101 to echoirlp@groups.io on Mon Jun 7 14:00:33 2021
    You might look at this web site and scripts, such as getnews and playnews. <http://vk2yld.info/scripting.htm>
    <http://vk2yld.id.au/scripts/>

    Another method would be for someone to set up an IRLP (experimental) node
    like 0016 for WIA. Skip Hansen (WB6YMH) set up 0016 to play the latest AR Newsline audio for anyone who connects. It includes brief pauses every
    couple of minutes to reset transmitters.

    David M.
    WD5M

    David M.


    On Mon, Jun 7, 2021 at 3:51 AM Steven VK2STG <stevenvk2stg@gmail.com> wrote:

    Hi David,
    Thanks for the info, all understood. We have actually discussed inserting breaks, so that's probably the way to go.
    One idea, I think I read somewhere that audio files can be played back in
    the IRLP software - would that get around the COS timer?
    Just wondering.

    On Mon, 7 Jun 2021 at 15:34, David McAnally <David.McAnally@gmail.com>
    wrote:

    The COS lockout is an IRLP feature, not part of EchoIRLP. Refer to < http://www.irlp.net/err-codes.html>. There is no method to disable the
    COS
    LOCKOUT timer. Its purpose is to prevent the node from locking up remote systems. Even if it could be disabled, most remote nodes would still timeout their transmitters.

    Best practice is to break up audio feeds such as you described so as to interrupt the transmission every two to three minutes to allow radios/repeaters to unkey and reset their timeout timers. This may also prevent radios from overheating that are not designed for 100% duty
    cycle.
    You may find scripts to break up audio file transmissions like these. The ARRL and ARNewsline include audio reminders and pauses to allow for unkeying within the audio file.

    David M.
    WD5M


    On Mon, Jun 7, 2021 at 12:13 AM <stevenvk2stg@gmail.com> wrote:

    Hi, new question.
    I'm not sure if this the right place for this question - but maybe
    someone
    can help.
    Every Sunday here, we relay the WIA weekly amateur news bulletin
    through
    the VK2RFS repeater. As the news runs for 30min we disable the repeater timeout (normally 3min) and use a transceiver connected to a PC to play
    the
    bulletin MP3 file.
    This has always worked fine - but! Now we have the EchoIRLP node, last Sunday a club member tried to listen via Echolink and found it dropped
    out
    after a fairly short time.
    We also heard an error message about the 'COS lockout' when we stopped transmitting at the end. I looked into this and as far as I can tell
    it's a
    'hardwired' feature of the Rpi based IRLP system to reset the node
    after
    4
    min of the the COS being open, to prevent problems with interference, equipment failure etc.
    Any ideas, anyone, on how to set things up so that Echolink users can listen to the whole 30min bulletin?

    Thanks,
    Steven VK2STG and the Snowy Mountains Amateur Radio Club.




















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  • From Steven VK2STG@432:1/101 to echoirlp@groups.io on Tue Jun 8 12:14:44 2021
    Thanks!🙂

    On Tue., 8 Jun. 2021, 12:01 am David McAnally, <David.McAnally@gmail.com> wrote:

    You might look at this web site and scripts, such as getnews and playnews. <http://vk2yld.info/scripting.htm>
    <http://vk2yld.id.au/scripts/>

    Another method would be for someone to set up an IRLP (experimental) node like 0016 for WIA. Skip Hansen (WB6YMH) set up 0016 to play the latest AR Newsline audio for anyone who connects. It includes brief pauses every
    couple of minutes to reset transmitters.

    David M.
    WD5M

    David M.


    On Mon, Jun 7, 2021 at 3:51 AM Steven VK2STG <stevenvk2stg@gmail.com>
    wrote:

    Hi David,
    Thanks for the info, all understood. We have actually discussed inserting breaks, so that's probably the way to go.
    One idea, I think I read somewhere that audio files can be played back in the IRLP software - would that get around the COS timer?
    Just wondering.

    On Mon, 7 Jun 2021 at 15:34, David McAnally <David.McAnally@gmail.com> wrote:

    The COS lockout is an IRLP feature, not part of EchoIRLP. Refer to < http://www.irlp.net/err-codes.html>. There is no method to disable the
    COS
    LOCKOUT timer. Its purpose is to prevent the node from locking up
    remote
    systems. Even if it could be disabled, most remote nodes would still timeout their transmitters.

    Best practice is to break up audio feeds such as you described so as to interrupt the transmission every two to three minutes to allow radios/repeaters to unkey and reset their timeout timers. This may also prevent radios from overheating that are not designed for 100% duty
    cycle.
    You may find scripts to break up audio file transmissions like these.
    The
    ARRL and ARNewsline include audio reminders and pauses to allow for unkeying within the audio file.

    David M.
    WD5M


    On Mon, Jun 7, 2021 at 12:13 AM <stevenvk2stg@gmail.com> wrote:

    Hi, new question.
    I'm not sure if this the right place for this question - but maybe
    someone
    can help.
    Every Sunday here, we relay the WIA weekly amateur news bulletin
    through
    the VK2RFS repeater. As the news runs for 30min we disable the
    repeater
    timeout (normally 3min) and use a transceiver connected to a PC to
    play
    the
    bulletin MP3 file.
    This has always worked fine - but! Now we have the EchoIRLP node,
    last
    Sunday a club member tried to listen via Echolink and found it
    dropped
    out
    after a fairly short time.
    We also heard an error message about the 'COS lockout' when we
    stopped
    transmitting at the end. I looked into this and as far as I can tell
    it's a
    'hardwired' feature of the Rpi based IRLP system to reset the node
    after
    4
    min of the the COS being open, to prevent problems with interference, equipment failure etc.
    Any ideas, anyone, on how to set things up so that Echolink users can listen to the whole 30min bulletin?

    Thanks,
    Steven VK2STG and the Snowy Mountains Amateur Radio Club.


























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