[App_rpt-users] chan_simpleusb

[Ramesh Dhami (VA3UV)]

Hi All;

A quick update on my chan_simpleusb testing on the Alix board:

First a correction, this board has 256MB of RAM (not 128).

Secondly, I connected up my fob (aka the 'UVRI' ;) to my repeater 
(normally used for my D-STAR experiments) and ran chan_simpleusb / the 
Alix board as a full-duplex repeater system.  I had a QSO with Jon, 
VA3RQ, for around 20 to 30 minutes and it works just fine!

Load average was around 0.5 to 0.6 when TX'ing audio off the Net, and 
around 0.35 to 0.4 when in local repeat mode.

There were no audio drop-out issues / motor boating etc.

Now the relevance of mentioning that my repeater is normally used for my 
D-STAR work is that it is wired for raw discriminator audio out and TX 
audio is wired to go directly into the modulator.

chan_simpleusb expects squelched / de-emphasized RX audio and expects 
the TX audio to be injected into the MIC input.

So hence the audio was rather hot - but that was to be expected.  I am 
sure that with the correct interface, this will work just fine.

Great job Jim!

Cheers,

Ramesh.



On 31/07/2011 10:39 PM, Ramesh Dhami, VA3UV/M wrote:
> Hi All:
>
> With tremendous help from Jim, we have chan_simpleusb and app_rpt running on an Alix 3d3 single board (embedded) system.
>
> The Alix board runs Centos off a 2GB CF card; has a 500MHz processor, 128MB of RAM, is DC powered, making it an attractive solution for remote sites.
>
> For testing, I just have a single radio connected to it and it is working very well indeed.  Next step is to connect a full duplex repeater and see how that goes.  I am sure that it will be fine if early indication is anything to go by!
>
> Thank you Jim!
>
> Ramesh.
>
> www.va3uv.com
>
> A member of the FREE STAR* team.
>
> Sent on the TELUS Mobility network with BlackBerry
>
> -----Original Message-----
> From: "K&R Yoksh"<yokshs at sbcglobal.net>
> Sender: app_rpt-users-bounces at ohnosec.org
> Date: Sun, 31 Jul 2011 16:43:41
> To: app_rpt<app_rpt-users at ohnosec.org>
> Subject: Re: [App_rpt-users] chan_simpleusb
>
> Just a status update for the list...
>
> I've been running the new simpleusb for about 24 hours.. So far, it seems to
> perform just as chan_usb..
>
> Parallel port cos/ptt is working well, along with parallel GPIO.
>
> I'm noticing less audio "jitter" with simpleusb... Not surprising, as I am
> using only a P3/866 for 2 RF nodes...
>
> 73.
>
> Kyle
> K0KN
>
>
> --- Original Message ---
>
> well *certain* people (you *know* who you are :-) :-) were *SUPPOSED* to be
> alpha-testing a version that supports that. That was now at least a couple
> of
> MONTHS ago!
>
> I dont suppose, Kyle, that *you* would be interested in doing that for me..
> like NOW..
> would you?? :-)
>
> Thanks
>
> JIM
>
>
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