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.
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@yahoogroups.com [mailto:op25-dev@yahoogroups.com] On Behalf Of allanjs1986 Sent: Sunday, 8 April 2012 9:54 AM To: op25-dev@yahoogroups.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.
Cool thanks why is my screen full of errors lol? [IMG]http://i39.tinypic.com/23krl0h.png%5B/IMG]
--- In op25-dev@yahoogroups.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@yahoogroups.com [mailto:op25-dev@yahoogroups.com] On Behalf Of allanjs1986 Sent: Sunday, 8 April 2012 9:54 AM To: op25-dev@yahoogroups.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.
Have you done a 'sudo make install' on gr-baz?
From: op25-dev@yahoogroups.com [mailto:op25-dev@yahoogroups.com] On Behalf Of allanjs1986 Sent: Sunday, 8 April 2012 10:43 AM To: op25-dev@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%5B/IMG]
--- In op25-dev@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@yahoogroups.com mailto:op25-dev%40yahoogroups.com
[mailto:op25-dev@yahoogroups.com mailto:op25-dev%40yahoogroups.com ] On Behalf
Of allanjs1986 Sent: Sunday, 8 April 2012 9:54 AM To: op25-dev@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.
I sure have with no errors.
--- In op25-dev@yahoogroups.com, Balint <balint256@...> wrote:
Have you done a 'sudo make install' on gr-baz?
From: op25-dev@yahoogroups.com [mailto:op25-dev@yahoogroups.com] On Behalf Of allanjs1986 Sent: Sunday, 8 April 2012 10:43 AM To: op25-dev@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%5B/IMG]
--- In op25-dev@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@yahoogroups.com mailto:op25-dev%40yahoogroups.com
[mailto:op25-dev@yahoogroups.com mailto:op25-dev%40yahoogroups.com ] On Behalf
Of allanjs1986 Sent: Sunday, 8 April 2012 9:54 AM To: op25-dev@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.
Sorry just looking at the picture you linked to.
You need to delete quite a few blocks there because you're using float baseband input!
Therefore, delete all the blocks "Float to Complex" until "Quadrature Demod" inclusive. Then connect the Audio Source directly to the "Decimating FIR Filter".
You can also delete any block that references the 'freq' variable (so delete the 'freq'/"Frequecncy" "Variable Text Box" and see what goes red - double check - then delete those too EXCEPT the 'auto_tune_offset_freq' "Variable Static Text". This should remain, but you need to change the Default Value to just the number 0.
Hopefully that'll do it!
From: op25-dev@yahoogroups.com [mailto:op25-dev@yahoogroups.com] On Behalf Of allanjs1986 Sent: Sunday, 8 April 2012 10:43 AM To: op25-dev@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%5B/IMG]
--- In op25-dev@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@yahoogroups.com mailto:op25-dev%40yahoogroups.com
[mailto:op25-dev@yahoogroups.com mailto:op25-dev%40yahoogroups.com ] On Behalf
Of allanjs1986 Sent: Sunday, 8 April 2012 9:54 AM To: op25-dev@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.
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@yahoogroups.com [mailto:op25-dev@yahoogroups.com] On Behalf Of allanjs1986 Sent: Sunday, 8 April 2012 10:43 AM To: op25-dev@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%5B/IMG]
--- In op25-dev@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@yahoogroups.com mailto:op25-dev%40yahoogroups.com
[mailto:op25-dev@yahoogroups.com mailto:op25-dev%40yahoogroups.com ] On Behalf
Of allanjs1986 Sent: Sunday, 8 April 2012 9:54 AM To: op25-dev@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.
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@yahoogroups.com, Balint <balint256@...> 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@yahoogroups.com [mailto:op25-dev@yahoogroups.com] On Behalf Of allanjs1986 Sent: Sunday, 8 April 2012 10:43 AM To: op25-dev@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%5B/IMG]
--- In op25-dev@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@yahoogroups.com mailto:op25-dev%40yahoogroups.com
[mailto:op25-dev@yahoogroups.com mailto:op25-dev%40yahoogroups.com ] On Behalf
Of allanjs1986 Sent: Sunday, 8 April 2012 9:54 AM To: op25-dev@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.
-
allanjs1986 -
Balint