[op25-dev] Re: GRC Flowcharts

allanjs1986 charmingajs007 at hotmail.com
Sun Apr 8 02:20:00 UTC 2012


haha to be honest it did and didn't make sense. A lot of the errors are from the variables. ie channel_rate not defined or op25 not defined.
If i open it as is no changes to it i get those errors 

--- In op25-dev at yahoogroups.com, Balint <balint256 at ...> wrote:
>
> OK last thing:
> 
>  
> 
> The 'channel_rate' Variable Value needs to be set to the sample rate seen at
> the OP25 Decoder block. If you're going direct, then it should be the same
> rate as the Audio Source.
> 
>  
> 
> If you wish to try resampling to have an exact multiple of the FSK4 symbol
> rate, set 'channel_rate' to some multiple of it (e.g. I use 28800), and then
> between "Audio Source" and "Decimating FIR Filter" add a new "Rational
> Resampler", but you need to going into its properties and make it (Float ->
> Float (float taps)).
> 
> Then enter the decimation to be your incoming sample rate (i.e. what's at
> the audio sink) and then interpolation as literally 'channel_rate'. So this
> is exactly what's in the sample with the Rational Resampler, but it's the
> orange float kind (not blue complex).
> 
>  
> 
> Hope that makes sense!
> 
>  
> 
> From: op25-dev at yahoogroups.com [mailto:op25-dev at yahoogroups.com] On Behalf
> Of allanjs1986
> Sent: Sunday, 8 April 2012 10:43 AM
> To: op25-dev at yahoogroups.com
> Subject: [op25-dev] Re: GRC Flowcharts
> 
>  
> 
>   
> 
> 
> 
> Cool thanks why is my screen full of errors lol?
> [IMG]http://i39.tinypic.com/23krl0h.png[/IMG]
> 
> --- In op25-dev at yahoogroups.com <mailto:op25-dev%40yahoogroups.com> , Balint
> <balint256@> wrote:
> >
> > Hi again!
> > 
> > I've added the FM and OP25 GRC flowgraph files to gr-baz/samples so you
> can
> > update your local copy and they should appear.
> > 
> > 
> > 
> > From: op25-dev at yahoogroups.com <mailto:op25-dev%40yahoogroups.com>
> [mailto:op25-dev at yahoogroups.com <mailto:op25-dev%40yahoogroups.com> ] On
> Behalf
> > Of allanjs1986
> > Sent: Sunday, 8 April 2012 9:54 AM
> > To: op25-dev at yahoogroups.com <mailto:op25-dev%40yahoogroups.com> 
> > Subject: [op25-dev] GRC Flowcharts
> > 
> > 
> > 
> > 
> > 
> > Yes me again haha :-)
> > I thought it might be a good idea for the less advanced in the group (like
> > me) and others, for members to save there flow chart files in the files
> > section. Like a P25 decode flowchart, using the gr-baz project. FM
> > Demodulation and any other that may be useful.
> >
>


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