URI loopback testing

Hi guys… I’ve got a SimpleUSB full duplex system connected to a port on my controller (Arcom RC210) and I’ve noticed something weird with telemetry announcements, specifically connect/disconnect messages, and I’ve tried with both a URI and URI-X with the same results.

I suspect the audio may be clipping in the controller, even though the levels appear to be adjusted correctly for 3Khz deviation @ 1Khz modulation in and out, so I want to make sure the URI(s) are not the problem.

I see you can build a loopback connector (docs.allstarlink.org/drupal/node/143), but what’s the best way to test this? Is there a way to inject/monitor audio? I’d like to see if I can reproduce the choppy audio so I can eliminate this being something in my system and/or URI(s).

tnx

Stephen

K1LNX

Steve,

stop asterisk

cd /usr/src

svn co uridiag

cd uridiag
make
chmod +x uridiag
./uridiag
I will add it to the next rev
73, Steve N4IRS

···

http://svn.ohnosec.org/svn/projects/allstar/uridiag/trunk

  On 04/15/2016 07:12 AM, Stephen - K1LNX

wrote:

    Hi guys... I've got a SimpleUSB full duplex system

connected to a port on my controller (Arcom RC210) and I’ve
noticed something weird with telemetry announcements,
specifically connect/disconnect messages, and I’ve tried with
both a URI and URI-X with the same results.

      I suspect the audio may be clipping in the controller, even

though the levels appear to be adjusted correctly for 3Khz
deviation @ 1Khz modulation in and out, so I want to make sure
the URI(s) are not the problem.�

I see you can build a loopback connector (docs.allstarlink.org/drupal/node/143
),
but what’s the best way to test this? Is there a way to
inject/monitor audio? I’d like to see if I can reproduce the
choppy audio so I can eliminate this being something in my
system and/or URI(s).�

tnx

Stephen

K1LNX




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I find that if the tx audio settings are close to the edges of
adjustment for the URI then you get Allison distorted.

First I would preset the input and output audio pots on the

controller for 1 v p-p if possible. Then set the tx and RX audio on
the URI.

If that still has distorted audio you may need to take out the audio

boost or put it in, then re-cal the audio levels on the node.

If all else fails, then in usbradio set txprelim=yes and re-cal the

audio in the node.

These steps should easily take care of this issue.

Jon RQ
···

On 4/15/2016 7:24 AM, Steve Zingman
wrote:

Steve,

  stop asterisk



  cd /usr/src

  svn co uridiag

cd uridiag
make
chmod +x uridiag
./uridiag
I will add it to the next rev
73, Steve N4IRS





This email is free from viruses and malware because avast! Antivirus protection is active.

http://svn.ohnosec.org/svn/projects/allstar/uridiag/trunk

    On 04/15/2016 07:12 AM, Stephen -

K1LNX wrote:

      Hi guys... I've got a SimpleUSB full duplex

system connected to a port on my controller (Arcom RC210) and
I’ve noticed something weird with telemetry announcements,
specifically connect/disconnect messages, and I’ve tried with
both a URI and URI-X with the same results.

        I suspect the audio may be clipping in the controller,

even though the levels appear to be adjusted correctly for
3Khz deviation @ 1Khz modulation in and out, so I want to
make sure the URI(s) are not the problem.�

I see you can build a loopback connector (docs.allstarlink.org/drupal/node/143

        ),

but what’s the best way to test this? Is there a way to
inject/monitor audio? I’d like to see if I can reproduce the
choppy audio so I can eliminate this being something in my
system and/or URI(s).�

tnx

Stephen

K1LNX




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Actually a small revision to my suggestion.

The statement should say:
  If all else fails, then set txlimonly=yes in

usbradio,� and re-cal the audio in the node.

cheers!

Jon va3rq
···

On 4/18/2016 10:18 AM, Jon Rorke wrote:

  I find that if the tx audio settings are close to the edges of

adjustment for the URI then you get Allison distorted.

  First I would preset the input and output audio pots on the

controller for 1 v p-p if possible. Then set the tx and RX audio
on the URI.

  If that still has distorted audio you may need to take out the

audio boost or put it in, then re-cal the audio levels on the
node.

  If all else fails, then in usbradio set txprelim=yes and re-cal

the audio in the node.

  These steps should easily take care of this issue.



  Jon RQ




This email is free from viruses and malware because avast! Antivirus protection is active.

    On 4/15/2016 7:24 AM, Steve Zingman

wrote:

Steve,

    stop asterisk



    cd /usr/src

    svn co uridiag

cd uridiag
make
chmod +x uridiag
./uridiag
I will add it to the next rev
73, Steve N4IRS
http://svn.ohnosec.org/svn/projects/allstar/uridiag/trunk

      On 04/15/2016 07:12 AM, Stephen -

K1LNX wrote:

        Hi guys... I've got a SimpleUSB full duplex

system connected to a port on my controller (Arcom RC210)
and I’ve noticed something weird with telemetry
announcements, specifically connect/disconnect messages, and
I’ve tried with both a URI and URI-X with the same results.

          I suspect the audio may be clipping in the controller,

even though the levels appear to be adjusted correctly for
3Khz deviation @ 1Khz modulation in and out, so I want to
make sure the URI(s) are not the problem.�

I see you can build a loopback connector (docs.allstarlink.org/drupal/node/143

          ),

but what’s the best way to test this? Is there a way to
inject/monitor audio? I’d like to see if I can reproduce
the choppy audio so I can eliminate this being something
in my system and/or URI(s).�

tnx

Stephen

K1LNX




_______________________________________________
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To unsubscribe from this list please visit and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button"
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1st Law of Logic

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Antivirus
protection is active.


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Thanks Jon :slight_smile: I think what was happening was that my audio was clipping in the controller and causing the dropouts. I am in a “transitional” period at the moment as I have a new replacement controller coming (SCOM 7330, it’s replacing an Arcom RC210) so I will be a few weeks before I can re-visit it all.

73

Stephen

K1LNX

···

On Mon, Apr 18, 2016 at 12:47 PM, Jon Rorke jrorke@cogeco.ca wrote:

Actually a small revision to my suggestion.

The statement should say:
  If all else fails, then set txlimonly=yes in

usbradio, and re-cal the audio in the node.

cheers!



Jon va3rq

On 4/18/2016 10:18 AM, Jon Rorke wrote:

  I find that if the tx audio settings are close to the edges of

adjustment for the URI then you get Allison distorted.

  First I would preset the input and output audio pots on the

controller for 1 v p-p if possible. Then set the tx and RX audio
on the URI.

  If that still has distorted audio you may need to take out the

audio boost or put it in, then re-cal the audio levels on the
node.

  If all else fails, then in usbradio set txprelim=yes and re-cal

the audio in the node.

  These steps should easily take care of this issue.



  Jon RQ






    On 4/15/2016 7:24 AM, Steve Zingman

wrote:

Steve,

    stop asterisk



    cd /usr/src

    svn co [http://svn.ohnosec.org/svn/projects/allstar/uridiag/trunk](http://svn.ohnosec.org/svn/projects/allstar/uridiag/trunk)
    uridiag

    cd uridiag

    make

    chmod +x uridiag

    ./uridiag



    I will add it to the next rev



    73, Steve N4IRS




      On 04/15/2016 07:12 AM, Stephen -

K1LNX wrote:

        Hi guys... I've got a SimpleUSB full duplex

system connected to a port on my controller (Arcom RC210)
and I’ve noticed something weird with telemetry
announcements, specifically connect/disconnect messages, and
I’ve tried with both a URI and URI-X with the same results.

          I suspect the audio may be clipping in the controller,

even though the levels appear to be adjusted correctly for
3Khz deviation @ 1Khz modulation in and out, so I want to
make sure the URI(s) are not the problem.

I see you can build a loopback connector (docs.allstarlink.org/drupal/node/143

          ),

but what’s the best way to test this? Is there a way to
inject/monitor audio? I’d like to see if I can reproduce
the choppy audio so I can eliminate this being something
in my system and/or URI(s).

tnx

Stephen

K1LNX

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App_rpt-users@ohnosec.org
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