8 Apr
2012
8 Apr
'12
1:53 a.m.
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.
8 Apr
8 Apr
2:25 a.m.
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(a)yahoogroups.com [mailto:op25-dev@yahoogroups.com] On Behalf
Of allanjs1986
Sent: Sunday, 8 April 2012 9:54 AM
To: op25-dev(a)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.
2:43 a.m.
Cool thanks why is my screen full of errors lol?
[IMG]http://i39.tinypic.com/23krl0h.png[/IMG]
--- In op25-dev(a)yahoogroups.com, Balint <balint256@...> wrote:
![IMG]http://i39.tinypic.com/23krl0h.png[/IMG](http://IMG]http://i39.tinypic.com/23krl0h.png[/IMG){kind=link}
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(a)yahoogroups.com [mailto:op25-dev@yahoogroups.com] On Behalf
Of allanjs1986
Sent: Sunday, 8 April 2012 9:54 AM
To: op25-dev(a)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.
2:51 a.m.
Have you done a 'sudo make install' on gr-baz?
From: op25-dev(a)yahoogroups.com [mailto:op25-dev@yahoogroups.com] On Behalf
Of allanjs1986
Sent: Sunday, 8 April 2012 10:43 AM
To: op25-dev(a)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(a)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(a)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(a)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.
3:02 a.m.
I sure have with no errors.
--- In op25-dev(a)yahoogroups.com, Balint <balint256@...> wrote:
Have you done a 'sudo make install' on gr-baz?
From: op25-dev(a)yahoogroups.com [mailto:op25-dev@yahoogroups.com] On Behalf
Of allanjs1986
Sent: Sunday, 8 April 2012 10:43 AM
To: op25-dev(a)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(a)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(a)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(a)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.
2:59 a.m.
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(a)yahoogroups.com [mailto:op25-dev@yahoogroups.com] On Behalf
Of allanjs1986
Sent: Sunday, 8 April 2012 10:43 AM
To: op25-dev(a)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(a)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(a)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(a)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.
3:06 a.m.
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(a)yahoogroups.com [mailto:op25-dev@yahoogroups.com] On Behalf
Of allanjs1986
Sent: Sunday, 8 April 2012 10:43 AM
To: op25-dev(a)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(a)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(a)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(a)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.
4:20 a.m.
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(a)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(a)yahoogroups.com [mailto:op25-dev@yahoogroups.com] On Behalf
Of allanjs1986
Sent: Sunday, 8 April 2012 10:43 AM
To: op25-dev(a)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(a)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(a)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(a)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.
4424
days inactive
4425
days old
7 comments
2 participants
participants (2)
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allanjs1986 -
Balint