[App_rpt-users] DMK URI questions

[David McGough]

I find these comments interesting! I agree that you have to get the system 
on the air. So, before you have a working system, don't over-think it.

However, once you've overcome the initial learning curve (and it is
substantial), this software and solution is capable of *exceedingly* high
quality audio (I dare to call it "broadcast quality") and repeater
control, once it's carefully tweaked for the radio hardware it's attached
to...So, don't stop experimenting--I still do; even after having systems
on-line continuously now for years.

just my $0.02!

73, David KB4FXC



On Sat, 2 Nov 2013, Johnny Keeker wrote:

> I not sure how to interpret "you all are getting to far into the weeds," 
I guess its to say done wasted your time experimenting. Personally I hold 
an opposing viewpoint, however I agree, with dont over think it, so I 
retract my previous comments and now say, 
"dont worry about audio quality use the default codec and git-r done."
JK  From: Bryan D. Boyle <bdboyle at bdboyle.com>
To: "<app_rpt-users at ohnosec.org>" <app_rpt-users at ohnosec.org> 
Sent: Saturday, November 2, 2013 8:06 PM
Subject: Re: [App_rpt-users] DMK URI questions



you all are getting too far into the weeds...it ain't broadcast 
audio, though it can sound better than most repeaters on the air today. 
9600  is fine; the levels you'll get are more than sufficient to 
work with.  don't forget to put it into data mode and lock it.  add 
in the rx boost, and you'll have more than you need to do whatever 
you want.  let asterisk dsp if you have the cpu chops do what it does. 
push composite back in, set your levels, and enjoy.

don't overthink it...it's just not that complex.
-- 
Bryan
Sent from my iPhone 5...small
keyboard, big fingers...please
forgive misspellings...



On Nov 2, 2013, at 16:07, Johnny Keeker <cypresstower at yahoo.com> wrote:


Doug:
>I know the alinco has flat audio out pin 2 and de-emphasized audio on pin 4.
>Ive ran some experiments and use both sources on DR-135/235/and 435 alincos.
>The output on pin 4 is around 84mV and 500mV on pin 2 on all radios.  Please 
>post your findings, Im curious to see what you come up with.
>Thank you,
>JK
>
>From: Doug Crompton <doug at crompton.com>
>To: "app_rpt-users at ohnosec.org" <app_rpt-users at ohnosec.org> 
>Sent: Saturday, November 2, 2013 1:53 AM
>Subject: [App_rpt-users] DMK URI questions
>
>
>
>About a week ago I asked about DMK URI connections to an Alinco radio and I got several responses. I do have a few more questions regarding that. 
>
>The Alinco has both flat and pre/de-emphasized audio available on its data connector as 1200 baud and 9600 baud connections.
>
>I assume I would use the 1200 baud connections along with COS and PTT for a simple USB interface and the 9600 baud connections along with just the PTT for a DSP interface?
>
>Do I use the  (Alinco 9600 baud) audio to the TX also? Does the DSP pre-emphasize audio or is the processing just on the receive side?
>
>Why would I want to use one over the other (DSP vs simple USB)? Which is preferred and/or works better? I am thinking there might be some differing opinions here!
>
>The DMK URI has both mic_DC and mic_AC inputs. Does this refer to frequency response or just that one has DC blocking?
>
>If you are using flat response (DSP) would the audio in (from the receiver) connections at the URI end matter?
>
>The DMK URI has both COS and CTSS inputs. Why would you use one over the other? When using DSP I assume neither is needed?
>
>All of the questions above assume I am using the Acid release on a faster processor.
>
>73 Doug
>WA3DSP
>http://www.crompton.com/hamradio
>
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