[App_rpt-users] Debugging COS

REDBUTTON_CTRL jrorke at cogeco.ca
Sun Feb 12 07:58:57 EST 2012


I dont know if this has been fixed in more recent versions, but if you 
have the ctcss=no then you must comment out these arguments in the 
usbradio.conf:

;txctcssdefault=94.8
;rxctcssfreqs=94.8
;txctcssfreqs=94.8

If you don't then App-Rpt is still looking for a valid ctcss tone and 
cor to activate.

Jon VA3RQ

On 2/12/2012 7:39 AM, Ken wrote:
>
> So -- are you sure it is a 108?
>
> When you type "lsusb" at the Linux command line do you get
>
> : ID 0d8c:013c C-Media Electronics, Inc.
>
> Ken
>
> *From:*app_rpt-users-bounces at ohnosec.org 
> [mailto:app_rpt-users-bounces at ohnosec.org] *On Behalf Of *Jim Whiteside
> *Sent:* Sunday, February 12, 2012 7:34 AM
> *To:* app_rpt-users at ohnosec.org
> *Subject:* Re: [App_rpt-users] Debugging COS
>
> > Assuming COS is connected to the Volume Down pin on the CM108 then 
> how about
> > plugging the fob into another PC which is not running the Asterisk 
> drivers
> > and see if the volume control is affected when COS is asserted?
>
> > On my PC, if I press volume down, either on the keyboard or on an 
> unmodified
> > USB sound fob then a volume bar pops up in the centre of the screen. 
>  It's
> > very visible.
>
> > Naturally, there may be a 'correct' way to do this with some sort of 
> built-in
> > diagnostics...
>
> > 73,
>
> > Andrew
> > ZL3AME
>
> That's a good plan.
>
> So I take an unmodified fob, that does have volume buttons on, and 
> plug it into a PC. 'volume down' button does indeed trigger the 
> windows volume bar. But this fob and button don't do anything on Asterisk.
>
> My modified fob - taking pin 48 to gnd also triggers the volume down 
> on Windows, so that suggests it's not hardware?
>
> Jim M0HPJ
>
> On 12 February 2012 11:45, Jim Whiteside <jaydublu2002 at gmail.com 
> <mailto:jaydublu2002 at gmail.com>> wrote:
>
> I'm still chipping away at modifying a Startech CM108 USB fob - so far 
> I have successfully got PTT and audio out working, but I'm struggling 
> with audio in and COS.
>
> I've been following http://www.qsl.net/k0kn/cm108_mod.html
>
> Can anyone advise if there's a way to determine from the Asterisk side 
> if COS is active or not?
>
> I've even tried manually taking the CM108 pin 48 to 0v and +5v with 
> the iax.conf below, but I can't seem to make anything 'happen'.
>
> My theory was, as soon as I have COS triggering Asterisk correctly, 
> then I can look at getting the audio in working properly.
>
> TIA
>
> -- 
> Jim Whiteside.
> M0HPJ
>
> [usb28233]
> hdwtype=0
> rxboost=1
> txboost=0
> rxctcssrelax=1
> txctcssdefault=94.8
> rxctcssfreqs=94.8
> txctcssfreqs=94.8
> ;rxctcssoverride=0
> carrierfrom=usbinvert
> ctcssfrom=no
> rxdemod=speaker
> txprelim=no
> txlimonly=no
> txtoctype=notone
> txmixa=composite
> txmixb=no
> invertptt=0
> duplex=0
> rxondelay=0
> rxnoisefiltype=0
> eeprom=0
>
>
>
>
> -- 
> Jim Whiteside.
>
>
>
> _______________________________________________
> App_rpt-users mailing list
> App_rpt-users at ohnosec.org
> http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
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