We are running usbradio with DSP PL decode on an ACID server, and we’ve had no issues. The radio has a Com-Spec tone decoder, which we ignore because folks thought it sounded too tinny... guess we could have install a de-emphasis ckt, but it was easier to just “turn-on” the DSP, and not run simple USB. Not tried usbradio and DSP in the XM, which I’m using with the DMK LOX. As Doug pointed out different ears hear things differently... I just go with the majority opinion because my old ears just don’t discriminate well enough to judge :-)


Thanks,

Bob

kk6ecm

 

From: George Csahanin [mailto:george@dyb.com]
Sent: Thursday, October 30, 2014 7:41 PM
To: Bob; App_rpt-users@ohnosec.org
Subject: Re: [App_rpt-users] questions on beagle

 

OK, thanks, that’s what I was looking for. I was trying to avoid a Com-Spec tone decoder or encoder. I may kluge in a Micor Encoder and decoder. Big fan of reverse burst, etc...

 

But that answered my question, and pretty much as expected. I’m very familiar with the issues around usbradio in general. I’ve used it a lot. What I have always found odd is that same computer, same CM108 dongle, plays tones, etc fine in windows, but in Linux it is flaky. Too bad, though. The idea is a good one. I have one “unlisted” node still running this way. Low (very low) activity, so usable.

 

Thanks

 

GeorgeC

 

George J Csahanin
W2DB
Cedar Park, TX
512-401-2630 home
401-338-0568 cel

 

From: Bob

Sent: Thursday, October 30, 2014 9:36 PM

Subject: RE: [App_rpt-users] questions on beagle

 

Beagleboard XM comes with beagle.conf, which is simpleusb like... e.g. no DSP, relying on hardware PL decode. I don’t know if you can use usbradio.conf for DSP for a PL decode.

 

Thanks,

Bob

kk6ecm

 

From: app_rpt-users-bounces@ohnosec.org [mailto:app_rpt-users-bounces@ohnosec.org] On Behalf Of George Csahanin
Sent: Thursday, October 30, 2014 5:55 PM
To: App_rpt-users@ohnosec.org
Subject: [App_rpt-users] questions on beagle

 

Folks, will current distros of pickle, or whatever we use on the beagle boards run DSP for PL decode or noise squelch? I have a BeagleBoard XM and a BBB, about three months back version. I’d love to tuck one of these inside a Nokia BSR-450 repeater eliminating its squelch and PL encode/decode (well, it doesn’t have those)???

 

Thanks

 

GeorgeC

George J Csahanin
W2DB
2360