[App_rpt-users] Beagleboard and USB URI dongle

[Tim Sawyer]

I think all you have to do is this.....


rpt.conf: (snip)

[2532]                                  ; Change this to your assigned node number 

rxchannel = SimpleUSB/usb               ; Rx audio/signalling channel



simpleusb.conf: (entire file)

;
; SimpleUSB configuration
;
[general]

[usb]

eeprom=0

hdwtype=0		; Leave this set to 0 for USB sound fobs modified using
			; the instructions from usbfob.pdf. Use a setting of 
			; 1 is for Dingotel/Sph interfaces.
 
rxboost=1		; 0 = 20db attenuator inserted, 1= 20db attenuator removed
			; Set to 1 for additonal gain if using a low-level receiver output

carrierfrom=usbinvert	; no,usb,usbinvert
			; no - no carrier detection at all
			; usb - from the COR line on the modified USB sound fob
			; usbinvert - from the inverted COR line on the modified USB sound fob

ctcssfrom=no		; no,usb,usbinvert
			; no - CTCSS decoding, system will be carrier squelch
			; usb - CTCSS decoding using input from USB FOB 
			; usbinvert - from the inverted CTCSS line on the modified USB sound fob

txmixa=voice		; Left channel output: no,voice,tone,composite,auxvoice
			; no - Do not output anything
			; voice - output voice only

txmixb=no		; Right channel output: no,voice,tone,composite, auxvoice
			; See txmixa above.

invertptt=0		; Invert PTT 0 = ground to transmit, 1 = open to transmit
			; This is the collector lead of the 2n4401 on the modified
			; usb sound fob.
			; please refer to the howto for the procedure to do this.

duplex=1		; Full Duplex

plfilter=yes		; enable PL filter

deemphasis=no		; enable de-emphasis (input from discriminator)


--
Tim
:wq

On Feb 15, 2011, at 6:14 AM, Steve Gladden wrote:

> Is there a stand alone document or page of info for chan_simpleusb?
> 
> I would like to try using it.
> 
> Is it the same as chan_usb but without carrier sense /PL decode?
> and DTMF decode?
> 
> And on a standard PC how do you build with this instead of chan_usbradio?
> 
> Thanks!
> 
> Steve
> 
> 
>> 
>> Other then the part about not being able to set levels in software,
>> you are correct. With chan_simpleusb you definitely can set levels
>> in software.
>> 
>> DTMF detection is definitely available with any channel driver.
>> 
>> JIM WB6NIL
>> 
>>> Date: Sun, 13 Feb 2011 17:02:51 -0800
>>> Subject: Re: [App_rpt-users] Beagleboard and USB URI dongle
>>> From: phil.n6tct at gmail.com
>>> To: telesistant at hotmail.com
>>> CC: app_rpt-users at ohnosec.org
>>> 
>>> Two questions:
>>> 
>>> (1) Do I understand that the main difference between chan_usbradio and
>>> chan_simpleusb is whether or not CTCSS encoding and decoding, squelch,
>>> pre-emphasis and soft limiting, de-emphasis, and audio level
>>> adjustments are available in software?
>>> 
>>> (2) Should DTMF digit detection be available with both chan_usbradio
>>> and chan_simpleusb?
>>> 
>>> If so, then it sounds like, assuming I have an RX radio that provides
>>> proper audio and does CTCSS detection and COR, then I should be all
>>> set with chan_simpleusb ... yes?
>>> 
>>> (Ooops, I guess that was really three questions.)
>>> 
>>> Thanks!
>>> 
>>> Phil, N6TCT
>>> 
>>> On Wed, Feb 9, 2011 at 8:50 AM, Jim Duuuude <telesistant at hotmail.com>
>>> wrote:
>>>> Yes, it works quite beautifuly with the URI, in fact it will support 2
>>> of
>>>> them
>>>> *BUT* only with chan_simpleusb. The CPU does not have the horsepower
>>>> to do the DSP routines used in chan_usbradio.
>> 
>> --
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> 
> 
> Michigan Broadband Systems Inc.
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> 
> (734)527-7150
> 
> Steve's cellphone: (734)904-1811
> 
> 
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