RE: Measuring transmission power from USRP B210

[Bernd Schleicher]

Hi Moses,

I would try to reduce the task to something that >must< work and then gradually 
increase the complexity.

  *   Maybe even start with checking the spectrum analyzer with another signal 
source. Do you have a programmed calibration (power) offset?
  *   Put a DC block at the input of the spectrum analyzer.
  *   Reduce sample rate
  *   Reduce amplitude of the signal source in flow chart. --> Does the 
spectrum change? View wider spectrum. Do you see intermodulation products, 
harmonics, other spurs?
  *   Reduce gain of the USRP sink in flow chart --> Does increasing gain 
follow a linear relation, i.e. 1 dB increase in gain value gives 1 dB increase 
of output power?
  *   Change center frequency --> Is it the same at all center frequencies or 
does it have a frequency slope?
  *   …

Best regards, Bernd





Sent: Dienstag, 10. November 2020 09:12
To: Moses Browne Mwakyanjala ; GNURadio Discussion List 

Subject: Re: Measuring transmission power from USRP B210

**This email has been sent from an EXTERNAL source**


Hi

I did not tried to calibrate my USRP source up to now but I'm interesting by 
this subject.

  *   I saw in Ettus USRP 
manual
  that :
 *   "The TX reference power level is defined as such: When a 0 dBFS signal 
is transmitted, it will leave the RF output at the selected reference power 
level. In other contexts, this value is sometimes referred to as "peak power 
level", because it's the maximum power that can be transmitted."
 *   It seems that on some USRP, this reference power level can be 
set/changed at runtime
 *   Given example clearly states that the source level in GRC is not 
directly related to the power level at URSP output in dBm
  *   Looking at How to set the trasmit power of 
USRP?
 on NI forum (see Sara answer)
 *   "Since these are uncalibrated devices, a particular gain value doesn't 
correspond to a particular power level"
 *   take a look at Sarah's reference b200_rev4_TX_FE1.pdf ‏859 
KB
 page 61 : it seems that the output power for a B200 at 2.2 GHz, with 0  dB 
gain (1 in linear) is close to -5 dB for a zero gain : Could that explains your 
-6 dBm?
  *   These references do not give a clear answer. I don't clearly understand 
given explanation.

Regards
On 09/11/2020 17:39, Moses Browne Mwakyanjala wrote:
Hello everyone,
I'm in the process of testing a GNU Radio transmitter. The transmitter will be 
connected to a solid-state power amplifier (SSPA) for near-Earth satellite 
communications. The SSPA expects an input of 0dm from the USRP TX port.

The first step is thus to measure the power from the USRP. To that end, the 
flowgraph generates a complex sinusoidal signal with a unit magnitude. The 
UHD:USRP Sink block is set to maximum gain (i.e. normalized gain of 1.0). 
Unfortunately, the maximum power I can see from the spectrum analyzer is around 
-6.93 dBm as shown below. To my understanding, the USRP can transmit up to 20 
dBm as reported in the "External Connections" section at this Ettus link :
https://files.ettus.com/manual/page_usrp_b200.html.
Could anyone explain why I can't achieve a 20 dBm (or anything around it) power 
level?
[cid:image002.jpg@01D6B743.D5271B10]
Thanks in advance,
Moses.


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Re: Issue in file sink block

[Maitry Raval]

Hello, 

Adding some more information to the previous mail, 
that I want to use only receiver part from GNU radio and SDR and my transmitter 
is different from which I am transmitting modulated signal and received and 
demodulated using GNU radio. 
so, when I am doing simulation( using back to back blocks of constellation 
modulator with the demod blocks) I am receiving the 1100 and 1010 data same as 
transmitted. 
but , when I am using the receive only blocks and use external transmitter, 
then also received data changes. 

I don't understand , where is the main problem. 

Kindly help. 

With Best Regards, 
Maitry Raval, 
R& D engineer|Azista Industries Pvt Ltd| 079-40605800|www.azistaaerospace.com 


From: "Maitry Raval"  
To: "Cinaed Simson"  
Cc: "discuss-gnuradio"  
Sent: Tuesday, November 10, 2020 9:13:38 AM 
Subject: Re: Issue in file sink block 

Hello, 

I understand that I have use online ASCII to binary converter and for that I am 
using below online converter. 
[ https://www.rapidtables.com/convert/number/ascii-to-binary.html | 
https://www.rapidtables.com/convert/number/ascii-to-binary.html ] 

But I am facing an issue, while I am transmitting repetitive pattern such as 
1100, 1010 , the data stored in the file after mod-demod is almost similar( 
only some initial bits are changed) . Please check the screenshot attached. 

But when I am transmitting some random pattern instead of repetitive using file 
source, I am not receiving the same pattern, while I am converting the stored 
ASCII to binary using converter. 

I have sent the GRC file in previous mail. Kindly let me know, where is the 
problem? 

Waiting for your positive response. 

With Best Regards, 
Maitry Raval, 
R& D engineer|Azista Industries Pvt Ltd| 079-40605800|www.azistaaerospace.com 


From: "Cinaed Simson"  
To: "discuss-gnuradio"  
Sent: Monday, November 9, 2020 1:15:51 PM 
Subject: Re: Issue in file sink block 

Hi Maitry - if by update you mean dumping a binary file as binary instead of 
hexadecimal, then on Linux use 

xxd -b   

-- Cinaed 


On 11/8/20 8:13 PM, Maitry Raval wrote: 



Hello experts, 

Any updates? 

With Best Regards, 
Maitry Raval, 
R& D engineer|Azista Industries Pvt Ltd| 079-40605800| [ 
http://www.azistaaerospace.com/ | www.azistaaerospace.com ] 


From: "Aditya Arun Kumar" [ mailto:adityaarunkumar...@gmail.com | 
 ] 
To: "Maitry Raval" [ mailto:maitry.ra...@azistaaerospace.com | 
 ] 
Cc: "discuss-gnuradio" [ mailto:discuss-gnuradio@gnu.org | 
 ] 
Sent: Wednesday, November 4, 2020 11:46:32 AM 
Subject: Re: Issue in file sink block 

Ok, thanks. 

On Wed, Nov 4, 2020 at 11:28 AM Maitry Raval < [ 
mailto:maitry.ra...@azistaaerospace.com | maitry.ra...@azistaaerospace.com ] > 
wrote: 

BQ_BEGIN

Hello, 

Please ignore the previous grc file. please find attached the correct grc file. 

With Best Regards, 
Maitry Raval, 
R& D engineer|Azista Industries Pvt Ltd| 079-40605800| [ 
http://www.azistaaerospace.com/ | www.azistaaerospace.com ] 


From: "Maitry Raval" < [ mailto:maitry.ra...@azistaaerospace.com | 
maitry.ra...@azistaaerospace.com ] > 
To: "Aditya Arun Kumar" < [ mailto:adityaarunkumar...@gmail.com | 
adityaarunkumar...@gmail.com ] > 
Cc: "discuss-gnuradio" < [ mailto:discuss-gnuradio@gnu.org | 
discuss-gnuradio@gnu.org ] > 
Sent: Wednesday, November 4, 2020 9:06:09 AM 
Subject: Re: Issue in file sink block 

Hello, 

Please find attached grc file for reference. I have done trial and error by 
converting the output file into online ascii to binary converter, but it 
provides random output. 

Please guide which binary viewer I need to use in check the data in 1 and 0 
format(binary) ? 

With Best Regards, 
Maitry Raval, 
R& D engineer|Azista Industries Pvt Ltd| 079-40605800| [ 
http://www.azistaaerospace.com/ | www.azistaaerospace.com ] 


From: "Aditya Arun Kumar" < [ mailto:adityaarunkumar...@gmail.com | 
adityaarunkumar...@gmail.com ] > 
To: "Derek Kozel" < [ mailto:de...@bitstovolts.com | de...@bitstovolts.com ] > 
Cc: "Maitry Raval" < [ mailto:maitry.ra...@azistaaerospace.com | 
maitry.ra...@azistaaerospace.com ] >, "Marcus Müller" < [ 
mailto:mmuel...@gnuradio.org | mmuel...@gnuradio.org ] >, "discuss-gnuradio" < 
[ mailto:discuss-gnuradio@gnu.org | discuss-gnuradio@gnu.org ] > 
Sent: Tuesday, November 3, 2020 5:49:05 PM 
Subject: Re: Issue in file sink block 

Or maybe use a gr-baz any sink to view bits? 

On Tue, Nov 3, 2020 at 5:43 PM Derek Kozel < [ mailto:de...@bitstovolts.com | 
de...@bitstovolts.com ] > wrote: 

BQ_BEGIN
Hello Maitry, 

The File Sink is not producing a text file, it is the raw binary data. 
You need to look at the contents of the file using a binary viewer. 

Regards, 
Derek 

On 03/11/2020 11:12, Maitry Raval wrote: 
> Hello sir, 
> 
> Please find attached screenshot for the grc file same as given in PSK guided 
> tutorials. also, I have attached output txt file for your reference. still , 
> did not receive binary data stored via file sink. 
> 
> Please guide, where a

Ofdm transceiver with more than 16QAM

[pv]

Hi, I'm trying to make an OFDM transmission of a png file (9.3 kB)  
with 256QAM with the gnuradio
example of OFDM transmitter / receiver. The USRP I'm using is the  
ettus n210 with the cbx daughter board. With the QPSK and 16QAM  
modulations it works, but with 64QAM or 256QAM I can´t receive the  
file, sometimes it receives some packets but most of the time it  
doesn't receive any byte. Can anyone help me with with this problem?


Thanks in advance.
Pedro Viegas
--
Pedro Viegas
Signal Processing Engineer
Koala Tech
phone: +351 917 354 070
e-mail: p...@koalatech.pt

Regarding ofdm mod in gnu radio

[Rozana Alam]

Hello community,
I have currently started using gnu radio for some signal measurement
purpose. I want to transmit ofdm signal with the help of gnu through
SDR(bladeRF). I got an idea from some tutorials that ofdm mod is needed for
transmitting ofdm signal.but I don't have any ofdm mod block on my gnu
platform but I have all the other ofdm components like ofdm tx,Rx, channel
allocator etc.i am using gnu radio 3.8 version in Ubuntu 18.04 and it's
compiled from source. Can anyone please assist me how to download ofdm mod
in my current platform.or is there any supplement that I can simply use
ofdm transmitter and receiver to transmit and receive ofdm signal through
the SDR. I would highly appreciate your help.
Sincerely,
Rozana

Re: Issue in file sink block

[Cinaed Simson]

Hi Maitry - okay, then Marcus has already updated you - DPSK Mod is 
depreciated.


That is, it has bugs which can't or won't be fixed and is no longer 
supported.


-- Cinaed



On 11/9/20 7:43 PM, Maitry Raval wrote:

Hello,

I understand that I have use online ASCII to binary converter and for 
that I am using below online converter.
https://www.rapidtables.com/convert/number/ascii-to-binary.html 



But I am facing an issue, while I am transmitting repetitive pattern 
such as 1100, 1010 , the data stored in the file after mod-demod is 
almost similar( only some initial bits are changed) . Please check the 
screenshot attached.


But when I am transmitting some random pattern instead of repetitive 
using file source, I am not receiving the same pattern, while I am 
converting the stored ASCII to binary using converter.


 I have sent the GRC file in previous mail. Kindly let me know, where 
is the problem?


Waiting for your positive response.

With Best Regards,
Maitry Raval,
R& D engineer|Azista Industries Pvt Ltd| 
079-40605800|www.azistaaerospace.com



*From: *"Cinaed Simson" 
*To: *"discuss-gnuradio" 
*Sent: *Monday, November 9, 2020 1:15:51 PM
*Subject: *Re: Issue in file sink block

Hi Maitry - if by update you mean dumping a binary file as binary 
instead of hexadecimal, then on Linux  use


  xxd -b  

-- Cinaed


On 11/8/20 8:13 PM, Maitry Raval wrote:

Hello experts,

Any updates?

With Best Regards,
Maitry Raval,
R& D engineer|Azista Industries Pvt Ltd|
079-40605800|www.azistaaerospace.com


*From: *"Aditya Arun Kumar" 
*To: *"Maitry Raval" 
*Cc: *"discuss-gnuradio" 
*Sent: *Wednesday, November 4, 2020 11:46:32 AM
*Subject: *Re: Issue in file sink block

Ok, thanks.

On Wed, Nov 4, 2020 at 11:28 AM Maitry Raval
mailto:maitry.ra...@azistaaerospace.com>> wrote:

Hello,

Please ignore the previous grc file. please find attached the
correct grc file.

With Best Regards,
Maitry Raval,
R& D engineer|Azista Industries Pvt Ltd|
079-40605800|www.azistaaerospace.com



*From: *"Maitry Raval" mailto:maitry.ra...@azistaaerospace.com>>
*To: *"Aditya Arun Kumar" mailto:adityaarunkumar...@gmail.com>>
*Cc: *"discuss-gnuradio" mailto:discuss-gnuradio@gnu.org>>
*Sent: *Wednesday, November 4, 2020 9:06:09 AM
*Subject: *Re: Issue in file sink block

Hello,

Please find attached grc file for reference. I have done trial
and error by converting the output file into online ascii to
binary converter, but it provides random output.

Please guide which binary viewer I need to use in  check the
data in 1 and 0 format(binary) ?

With Best Regards,
Maitry Raval,
R& D engineer|Azista Industries Pvt Ltd|
079-40605800|www.azistaaerospace.com



*From: *"Aditya Arun Kumar" mailto:adityaarunkumar...@gmail.com>>
*To: *"Derek Kozel" mailto:de...@bitstovolts.com>>
*Cc: *"Maitry Raval" mailto:maitry.ra...@azistaaerospace.com>>, "Marcus Müller"
mailto:mmuel...@gnuradio.org>>,
"discuss-gnuradio" mailto:discuss-gnuradio@gnu.org>>
*Sent: *Tuesday, November 3, 2020 5:49:05 PM
*Subject: *Re: Issue in file sink block

Or maybe use a gr-baz any sink to view bits?

On Tue, Nov 3, 2020 at 5:43 PM Derek Kozel
mailto:de...@bitstovolts.com>> wrote:

Hello Maitry,

The File Sink is not producing a text file, it is the raw
binary data.
You need to look at the contents of the file using a
binary viewer.

Regards,
Derek

On 03/11/2020 11:12, Maitry Raval wrote:
> Hello sir,
>
> Please find attached screenshot for the grc file same as
given in PSK guided tutorials. also, I have attached
output txt file for your reference. still , did not
receive binary data stored via file sink.
>
> Please guide, where am I doing wrong.
>
>
> With Best Regards,
> Maitry Raval,
> R& D engineer|Azista Industries Pvt Ltd|
079-40605800|www.azistaaerospace.com

>
> - Original Message -
> From: "Marcus Müller" mailto:mmuel...@gnuradio.org>>
> To: "discuss-gnura

Re: GRC Documentation tab

[Marcus Müller]

Hi Barry,

not as far as I know, but well, in which part of software do you need to
know that?

Best regards,
Marcus

On 09.11.20 00:50, Barry Duggan wrote:
> Using GRC, open the Properties of a block, select the 'Documentation'
> tab. Is there a way to get a hook / callback if the user clicks within
> the text box of that tab?
> 
> I don't even need the contents of that text box, just the fact that the
> user clicked it, and which type of block (label) it is.
> 
> Thanks!
> ---
> Barry Duggan KV4FV
> https://github.com/duggabe
> 

Re: Ofdm transceiver with more than 16QAM

[Marcus Müller]

Hi. this is a typical question like I'd ask it when talking a student
through a test for a digital comms computer lab. So here's a hint:

"Constellations with very many points" don't always work. It has to do
with SNR. Can you explain what the problem is with low SNR?

Best regards,
Marcus

On 10.11.20 12:56, p...@koalatech.pt wrote:
> Hi, I'm trying to make an OFDM transmission of a png file (9.3 kB) with
> 256QAM with the gnuradio
> example of OFDM transmitter / receiver. The USRP I'm using is the ettus
> n210 with the cbx daughter board. With the QPSK and 16QAM modulations it
> works, but with 64QAM or 256QAM I can´t receive the file, sometimes it
> receives some packets but most of the time it doesn't receive any byte.
> Can anyone help me with with this problem?
> 
> Thanks in advance.
> Pedro Viegas

Re: GRC Documentation tab

[Barry Duggan]

Hi Marcus,

Here is what I would like to happen:

1) The user has a GRC flowgraph open, clicks on a block, selects 
Properties, and selects the Documentation tab.


2) The user clicks within the text block of the Documentation tab. It 
contains the URL of the wiki page for that block, but as far as I can 
tell, there is no way to make a clickable link in a text block.


3) Since we know which block Parameters screen is open, we know the name 
of the block and can derive the URL from it.


4) By intercepting that click, I would trigger a link to the wiki for 
the user's web browser.


I haven't dug into the GRC code enough to know exactly where to put the 
code to do that, but it would be a neat feature to have.


Any suggestions and/or assistance would be appreciated greatly!

Thanks,
---
Barry Duggan KV4FV
https://github.com/duggabe

---

On Tue, 10 Nov 2020 23:36:09 +0100, Marcus Müller wrote:

Hi Barry,

not as far as I know, but well, in which part of software do you need to
know that?

Best regards,
Marcus

On 09.11.20 00:50, Barry Duggan wrote:
> Using GRC, open the Properties of a block, select the 'Documentation'
> tab. Is there a way to get a hook / callback if the user clicks within
> the text box of that tab?
>
> I don't even need the contents of that text box, just the fact that the
> user clicked it, and which type of block (label) it is.
>
> Thanks!
> ---
> Barry Duggan KV4FV
> https://github.com/duggabe
>

Re: Import Block "bad import syntax"

[Barry Duggan]

Hi Jim,

The tutorial you cited has been deprecated in GR 3.8. Also, it doesn't 
work as written! At this point we have chosen not to update or correct 
it. The recommended tutorial is 
https://wiki.gnuradio.org/index.php/OutOfTreeModules


What version of GR do you have on your rPi, and how did you load it?

For the tutorial you referenced, your Import should be for testpy and 
not squareme. Also, for the Variable test_var, the value should be 
squareme(12) without the "testpy." in front of it.


73,
---
Barry Duggan KV4FV
https://github.com/duggabe

---
On Mon, 9 Nov 2020 10:13:53 -0500, Elmore's wrote:

I have a problem as indicated in the subject line that has me totally 
baffled.


I have created a noblock module with gr_modtool called softrock. This 
module has been successfully created and lives in 
/usr/local/lib/python2.7/dist-packages/softrock. It contains a file 
softrock_usb.py.


I have an existing flowgraph in which I select an Import block. In the 
Import line in Properties I type “import softrock” (without quotes). I 
get the error “bad import syntax”.


I used the document TutorialPythonFunctions from the gnuradio wiki as 
guidance for this task.


I have performed extensive searching for this issue but everything 
points back to simply adding the word “import” in front of the module name.


I have tried completely clearing the text box thinking that there might 
be extraneous characters present.


This seems so simple that I am baffled why it isn’t working.

My platform is a Raspberry Pi 3 with Raspbian Jessie.

Thanks for any help you might give me.

Jim

Re: GRC Documentation tab

[Jeff Long]

First thought was that you could add a hyperlink in the text here:
https://github.com/gnuradio/gnuradio/blob/55621a9709b219551b908e67ee88f6f7ad2593cb/grc/gui/PropsDialog.py#L208

but GTK doesn't seem to do that very well.

I wouldn't intercept any old dialog click. Users might be trying to
cut/paste, or just click on stuff because they're bored.

So another idea would be to add a widget to the doc tab:
https://developer.gnome.org/pygtk/stable/class-gtklinkbutton.html
here:
https://github.com/gnuradio/gnuradio/blob/55621a9709b219551b908e67ee88f6f7ad2593cb/grc/gui/PropsDialog.py#L68

On Tue, Nov 10, 2020 at 9:45 PM Barry Duggan  wrote:

> Hi Marcus,
>
> Here is what I would like to happen:
>
> 1) The user has a GRC flowgraph open, clicks on a block, selects
> Properties, and selects the Documentation tab.
>
> 2) The user clicks within the text block of the Documentation tab. It
> contains the URL of the wiki page for that block, but as far as I can
> tell, there is no way to make a clickable link in a text block.
>
> 3) Since we know which block Parameters screen is open, we know the name
> of the block and can derive the URL from it.
>
> 4) By intercepting that click, I would trigger a link to the wiki for
> the user's web browser.
>
> I haven't dug into the GRC code enough to know exactly where to put the
> code to do that, but it would be a neat feature to have.
>
> Any suggestions and/or assistance would be appreciated greatly!
>
> Thanks,
> ---
> Barry Duggan KV4FV
> https://github.com/duggabe
>
> ---
>
> On Tue, 10 Nov 2020 23:36:09 +0100, Marcus Müller wrote:
>
> Hi Barry,
>
> not as far as I know, but well, in which part of software do you need to
> know that?
>
> Best regards,
> Marcus
>
> On 09.11.20 00:50, Barry Duggan wrote:
>  > Using GRC, open the Properties of a block, select the 'Documentation'
>  > tab. Is there a way to get a hook / callback if the user clicks within
>  > the text box of that tab?
>  >
>  > I don't even need the contents of that text box, just the fact that the
>  > user clicked it, and which type of block (label) it is.
>  >
>  > Thanks!
>  > ---
>  > Barry Duggan KV4FV
>  > https://github.com/duggabe
>  >
>
>
>

Re: Issue in file sink block

[Maitry Raval]

Hello, 

I think there is some misunderstanding here, I am using the attached grc file 
which includes all the ok blocks such as polyphase clock sync, costas loop, CMA 
equilizer etc for demodulation. Please check the attached file. for the 
attached grc, I am facing the below issue. 

I understand that I have use online ASCII to binary converter and for that I am 
using below online converter. 
[ https://www.rapidtables.com/convert/number/ascii-to-binary.html | 
https://www.rapidtables.com/convert/number/ascii-to-binary.html ] 

But I am facing an issue, while I am transmitting repetitive pattern such as 
1100, 1010 , the data stored in the file after mod-demod is almost similar( 
only some initial bits are changed) . Please check the screenshot attached. 

But when I am transmitting some random pattern instead of repetitive using file 
source, I am not receiving the same pattern, while I am converting the stored 
ASCII to binary using converter. 

Please help. 

With Best Regards, 
Maitry Raval, 
R& D engineer|Azista Industries Pvt Ltd| 079-40605800|www.azistaaerospace.com 


From: "Cinaed Simson"  
To: "Maitry Raval"  
Cc: "discuss-gnuradio"  
Sent: Wednesday, November 11, 2020 12:51:54 AM 
Subject: Re: Issue in file sink block 

Hi Maitry - okay, then Marcus has already updated you - DPSK Mod is 
depreciated. 

That is, it has bugs which can't or won't be fixed and is no longer supported. 

-- Cinaed 



On 11/9/20 7:43 PM, Maitry Raval wrote: 



Hello, 

I understand that I have use online ASCII to binary converter and for that I am 
using below online converter. 
[ https://www.rapidtables.com/convert/number/ascii-to-binary.html | 
https://www.rapidtables.com/convert/number/ascii-to-binary.html ] 

But I am facing an issue, while I am transmitting repetitive pattern such as 
1100, 1010 , the data stored in the file after mod-demod is almost similar( 
only some initial bits are changed) . Please check the screenshot attached. 

But when I am transmitting some random pattern instead of repetitive using file 
source, I am not receiving the same pattern, while I am converting the stored 
ASCII to binary using converter. 

I have sent the GRC file in previous mail. Kindly let me know, where is the 
problem? 

Waiting for your positive response. 

With Best Regards, 
Maitry Raval, 
R& D engineer|Azista Industries Pvt Ltd| 079-40605800| [ 
http://www.azistaaerospace.com/ | www.azistaaerospace.com ] 


From: "Cinaed Simson" [ mailto:cinaed.sim...@gmail.com | 
 ] 
To: "discuss-gnuradio" [ mailto:discuss-gnuradio@gnu.org | 
 ] 
Sent: Monday, November 9, 2020 1:15:51 PM 
Subject: Re: Issue in file sink block 

Hi Maitry - if by update you mean dumping a binary file as binary instead of 
hexadecimal, then on Linux use 

xxd -b   

-- Cinaed 


On 11/8/20 8:13 PM, Maitry Raval wrote: 

BQ_BEGIN

Hello experts, 

Any updates? 

With Best Regards, 
Maitry Raval, 
R& D engineer|Azista Industries Pvt Ltd| 079-40605800| [ 
http://www.azistaaerospace.com/ | www.azistaaerospace.com ] 


From: "Aditya Arun Kumar" [ mailto:adityaarunkumar...@gmail.com | 
 ] 
To: "Maitry Raval" [ mailto:maitry.ra...@azistaaerospace.com | 
 ] 
Cc: "discuss-gnuradio" [ mailto:discuss-gnuradio@gnu.org | 
 ] 
Sent: Wednesday, November 4, 2020 11:46:32 AM 
Subject: Re: Issue in file sink block 

Ok, thanks. 

On Wed, Nov 4, 2020 at 11:28 AM Maitry Raval < [ 
mailto:maitry.ra...@azistaaerospace.com | maitry.ra...@azistaaerospace.com ] > 
wrote: 

BQ_BEGIN

Hello, 

Please ignore the previous grc file. please find attached the correct grc file. 

With Best Regards, 
Maitry Raval, 
R& D engineer|Azista Industries Pvt Ltd| 079-40605800| [ 
http://www.azistaaerospace.com/ | www.azistaaerospace.com ] 


From: "Maitry Raval" < [ mailto:maitry.ra...@azistaaerospace.com | 
maitry.ra...@azistaaerospace.com ] > 
To: "Aditya Arun Kumar" < [ mailto:adityaarunkumar...@gmail.com | 
adityaarunkumar...@gmail.com ] > 
Cc: "discuss-gnuradio" < [ mailto:discuss-gnuradio@gnu.org | 
discuss-gnuradio@gnu.org ] > 
Sent: Wednesday, November 4, 2020 9:06:09 AM 
Subject: Re: Issue in file sink block 

Hello, 

Please find attached grc file for reference. I have done trial and error by 
converting the output file into online ascii to binary converter, but it 
provides random output. 

Please guide which binary viewer I need to use in check the data in 1 and 0 
format(binary) ? 

With Best Regards, 
Maitry Raval, 
R& D engineer|Azista Industries Pvt Ltd| 079-40605800| [ 
http://www.azistaaerospace.com/ | www.azistaaerospace.com ] 


From: "Aditya Arun Kumar" < [ mailto:adityaarunkumar...@gmail.com | 
adityaarunkumar...@gmail.com ] > 
To: "Derek Kozel" < [ mailto:de...@bitstovolts.com | de...@bitstovolts.com ] > 
Cc: "Maitry Raval" < [ mailto:maitry.ra...@azistaaerospace.com | 
maitry.ra...@azistaaerospace.com ] >, "Marcus Müller" < [ 
mailto:mmuel...@gnuradio.org | mmuel...@gnuradio.org ] >, "discuss-gnuradio" < 
[ mailto:discuss-gnuradio@gnu.org | discuss-gnuradio@gnu.org