[App_rpt-users] Squelch Tail Crash Elimination

Wed Jun 6 14:24:06 UTC 2018

Using the channel driver usbradio, did you run radio-tune-menu and adjust
the squelch?
It sounds to me, like the squelch is wide open, and you're using
usbradio.conf to define the pl tone(s).  If your squelch is wide open, you
will hear that bit of squelch crash after the tone is dropped, and before
the repeater drops.

There are 2 ways to go on the settings, and I don't remember which is which
so there's a 50/50 shot at this... but "as I recall" (and I'm not
remembering well, these days) the Lower the number, the 'looser' the
squelch.

For experimentation, you might try turning the tone requirement for the
receiver off, and adjusting that value, while listening to the output of
the repeater (while not hooked up to anyone) and determine where the
squelch level should be.

best of luck es 73
-Geoff/W5OMR (29655)

On Wed, Jun 6, 2018 at 5:37 AM, John W Benedict <John at ke5rs.com> wrote:

> Thank you Chuck and Mike,
>
>
>
> Chuck,
>
> Yes… I thought USBRadio with more complexity, not simple would be what was
> needed… I am using pin 9 now from the 15 pin and going to pin 21 at the
> URIx.  I will look at what you show below and see if that is the direction
> to go.  As you described “Best results”, I will check into grabbing the
> discriminator audio being a little nervous  with my skill set 😊
>
>
>
> Thank you.
>
>
>
> Mike,
>
> I did play some with the “rxondelay” but with no luck.  What I remember,
> adding time to “rxondelay “ gave me a short burst of initial audio out the
> front speaker with more time getting a longer audio burst before it gets
> muted.  This audio burst would only happen if the squelch tale drops
> completely from the previous transmission.  I did not hear a difference
> with what was heard on the air from the transmitter including the squelch
> crash was still present.
>
>
>
> Thank you for your reply…
>
> John de KE5RS
> _._ . ..... ._. ...
>
>
>
> *From:* App_rpt-users <app_rpt-users-bounces at lists.allstarlink.org> *On
> Behalf Of *Chuck Henderson
> *Sent:* Tuesday, June 5, 2018 10:45 PM
> *To:* Users of Asterisk app_rpt <app_rpt-users at lists.allstarlink.org>
> *Subject:* Re: [App_rpt-users] Squelch Tail Crash Elimination
>
>
>
> I think that if you feed direct discriminator audio to the usb interface
> and use usbradio then it automatically takes care of the necessary delays
> and avoids loosing any audio in the process.  For best results you can grab
> the direct discriminator audio from the cable that runs from inside the
> Receiver Unit to the Filter Unit (shown below), I can't remember if I used
> the L-in or the R-in.  Or second best you can use the DSP processed
> discriminator output in the DB15 connector (center pin in center row, pin
> 8) but it isn't as good and has more delay.
>
>
>
> 
>
>
>
> On Tue, Jun 5, 2018 at 9:41 PM, Mike <mm at midnighteng.com> wrote:
>
>
>
> Well, I don't want to lead you astray... as I'm not for sure on this...
>
> Had to think on it a while...
>
> You might try adding some time to rxondelay (ms)  but I'm not sure that
> will delay the repeated audio.
>
> I think it may only delay the cor activation time.
>
> But, if nobody chimes in with the 'right stuff' give it a try.
>
> I'm thinkin you might need to create a special audio delay.
>
> 73,
>
> ...mike/kb8jnm
>
>
>
> On 6/5/2018 10:10 PM, John W Benedict wrote:
>
> Hello,
>
>
>
> I have ASL running a Dell Slim Form computer all seems to be work quite
> well, connections, Echolink and local repeater with great audio reports
> however… I like to know how to eliminate the squelch crash on the tail
> maybe adding some milliseconds to the receiver audio?
>
>
>
> The system is a Yaesu DR-1X interfaced with the URIx controller using
> SimpleUSB in ASL version 20180417
>
> The computer: Dell SFF Version 4.9.0-6-amd64 #1 SMP Debian 4.9.88-1+deb9u1
> (2018-05-07) x86_64.
>
>
>
> I am very novice with Linux and Asterisk but learning bits and pieces…
>
>
>
> Thank you
>
> John de KE5RS
> _._ . ..... ._. ...
>
>
>
>
>
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-- 
Operating your AM rig without a scope is like driving our car at night
without headlights. (~K4KYV)

73 = Best Regards,
-Geoff/W5OMR
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