[App_rpt-users] RTCM squelch tail elimination?

[Tim Sawyer]

Dave,

Good to know. Thanks for the correction. 
--
Tim
:wq

On Apr 20, 2014, at 10:01 PM, David McGough <kb4fxc at inttek.net> wrote:

> 
> Tim,
> 
> app_rpt can't do STE on receive since that is a transmitter function. But,
> chan_usbradio does provide a means to chop off the squelch tail using an 
> audio delay. This is exactly how it's done on most stand-alone 
> analog controllers these days.
> 
> See the parameter: rxsquelchdelay in the usbradio.conf file.
> 
> I can confirm this does work, I use it on several Kenwood repeaters.  
> Note that you must use flat audio (rxdemod=flat) for rxsquelchdelay to
> work, since the "flat" setting turns on most of the DSP code. Setting
> rxsquelchdelay=150 will solve most squelch crash issues, in my
> experience.
> 
> 73, David KB4FXC
> 
> 
> 
> On Sun, 20 Apr 2014, Tim Sawyer wrote:
> 
>> Simpleusb has nothing to do with RTCMs. You should not have a 
> simpleusb.conf on your system if your only interface is a RTCM. 
>> 
>> When you have set the RTCM COR type = 1 the squelch tail comes from 
> your radio, or rather the Doug Hall voter in your case. As far as I know 
> there is no STE setting anywhere in app_rpt or any of it’s channel 
> drivers including chan_voter.
>> 
>> Have you considered connecting RTCMs to your receivers and let them 
> vote in place of the Doug Hall?
>> 
>> --
>> Tim
>> :wq
>> 
>> On Apr 20, 2014, at 12:53 PM, Sam Nabkey <sam.nabkey at gmail.com> wrote:
>> 
>>> 
>>> Hello all...
>>> 
>>> I have replaced a repeater controller with a RTCM and a  server.
>>> 
>>> All is well but for a heavy squelch tail after carrier drop.  I am using the unit in simple mode because  I do not have an active discriminator output because I am using the RTCM behind a Doug Hall voter.
>>> 
>>> I have Googled the subject to death and I see plenty of mentioned items regarding simpleusb and usb settings but nothing on voter configuration.   Am I missing something someplace?
>>> 
>>> Thanks in advance for all the information.
>>> 
>>> You all are some of the smartest folks I know.  
>>> 
>>> Sam K8SN
>>> 
>>> 
>>> 
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>> 
>> 
>