[App_rpt-users] Something is rotten in the state of Denmark (Ken)

[Ken]

CPU power is only an issue for really flea-sized (raspberry pi) or old-old
computers.
You can get a $79 computer today that will run 4 URI's with DSP and stream
audio to the internet at the same time.

As I recall, one of the Motorola radios I played with had the discriminator
audio available at the 16 pin socket, but you had to move a jumper inside.

I think the two-level squelch in app_rpt is better than some simple rig's
hardware squelch, but is probably not better than the hardware squelch in
some other radios. So if you are really interested in this, it's a case of
try-it-and-see.

I am inclined to believe that having un-muted audio must be somehow better -
in terms of system latency - since the audio is already "in the pipeline" of
the audio processing chain when the decision is made to transmit it (or
not).  But I have never tried to prove this.

Regards
Ken
 

> -----Original Message-----
> From: app_rpt-users-bounces at ohnosec.org [mailto:app_rpt-users-
> bounces at ohnosec.org] On Behalf Of K&R Yoksh
> Sent: Saturday, March 30, 2013 12:10 AM
> To: app_rpt-users at ohnosec.org
> Subject: Re: [App_rpt-users] Something is rotten in the state of Denmark
> (Ken)
> 
> 
> ----- Original Message -----
> > From: "Ken"
> > To: "'George Csahanin'"
> > Subject: Re: [App_rpt-users] Something is rotten in the state of
> > Denmark
> >
> > I think this is a case of YMMV ? I find if I enable DSP squelch with
> > the low-noise receiver, the squelch operation on weak signals is
> > somewhat erratic. With strong signals it?s fine.
> 
> I'm just reading this thread, so forgive me if I missed something, but can
you
> use COS and filtered, muted audio rather than discriminator audio and DSP?
> 
> Personally, I prefer the former, especially when using Motorola 16-pin
radios,
> where all of the signals you need are already at the rear panel.
> With this configuration, you can use SimpleUSB and lower your CPU usage by
> not running the DSP routines. I agree that sometimes the weak signal
> squelch detection isn't as accurate as COS.
> 
> 73
> 
> Kyle
> K0KN
> Allstar 2210-2219
> 
> 
> 
> 
> 
> 
> 
> _______________________________________________
> App_rpt-users mailing list
> App_rpt-users at ohnosec.org
> http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users