[App_rpt-users] CTCSS decode in software?

[Chuck Henderson]

I tried "carrierfrom=dsp" and same result, any pl tone or no pl tone
still brings up the repeater, like it is carrier squelch.  I also
tried "carrierfrom=no" and the result of that was that nothing would
bring up the repeater.
Chuck

On Mon, Nov 15, 2010 at 3:43 PM, Jim Duuuude <telesistant at hotmail.com> wrote:
> try carrierfrom=dsp
>
>> From: rpt2 at chuck.midlandsnetworking.com
>> Date: Mon, 15 Nov 2010 15:10:36 -0600
>> To: app_rpt-users at qrvc.com
>> Subject: [App_rpt-users] CTCSS decode in software?
>>
>> I am running version .273 code in Centos running on an Intel Atom
>> D510,(which reports "Total of 4 processors activated (13333.62
>> BogoMIPS)") and am trying to use a radio receiver that does not have
>> built in CTCSS decode. I am getting audio directly from the
>> discriminator and the "radio tune rxnoise" and "radio tune rxtone"
>> setting is successful but it acts like I am set for carrier squelch
>> even though I think I am setup for dsp CTCSS squelch in usbradio.conf.
>> Here are my settings from usbradio.conf.
>> What am I doing wrong? Is it not possible to decode CTCSS in software
>> and have it only allow signals in that have the correct tone?
>> Chuck
>>
>>
>> [usb27468]
>> hdwtype=0
>> rxboost=0
>> txboost=0
>> rxctcssrelax=1
>> txctcssdefault=131.8
>> rxctcssfreqs=131.8
>> txctcssfreqs=131.8
>> rxctcssoverride=1
>> carrierfrom=usbinvert
>> ; Options - no,usb,usbinvert,dsp,vox
>> ; no - no carrier detection at all
>> ; usb - via USB radio adapter COR connection
>> ; usbinvert - same as above but
>> inverted polarity.
>> ; dsp - from RX noise using dsp methods
>> ; vox - voice activated via RX audio
>> ctcssfrom=dsp
>> ; Options = no,usb,dsp
>> ; no - CTCSS decoding, system will be
>> carrier squelch
>> ; usb - CTCSS decoding using input
>> from USB adapter
>> ; usbinvert - same as above but
>> inverted polarity.
>> ; dsp - CTCSS decoding using RX audio in DSP.
>> ; rxdemod option must be set to flat
>> for this to work.
>> rxdemod=flat
>> ; Options = no, flat, speaker
>> ; no - RX audio input not used
>> ; flat - source is un-filtered
>> discriminator signal
>> ; speaker - source is filtered,
>> de-emphasized audio
>>
>> txprelim=no
>> txlimonly=no
>> txtoctype=no
>> txmixa=voice
>> txmixb=voice
>> invertptt=0
>> duplex=1
>> rxondelay=0
>> rxnoisefiltype=0
>> eeprom=0
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>