Re: explaining i/q

2020-11-03 Thread gilles rubin
Hello, You can have a look hereThe Concept of Frequency | Wireless Pi | | | The Concept of Frequency | Wireless Pi | Qasim Chaudhari CEO of Wireless Pi is great ! You will find plenty of information on his website. Gil. Le mardi 3 novembre 2020 à 00:06:02 UTC+1, Kristoff a écrit :

Re: explaining i/q

2020-11-03 Thread Fabian Schwartau
Hi Kristoff, As some people already pointed out here, it is always good to give multiple views for the concept of complex numbers, as different minds work differently and some explanation may push the right buttons for someone, but not for someone else. Especially for such a complex (pun intended)

Re: explaining i/q

2020-11-03 Thread Jeff Long
This is a great thing to try to figure out. If we can come up with an answer that gives someone a feel for why I/Q is used in SDR in 10 minutes, and does not include phasors, exponentials to a complex power, a derivation of any equation, the concept of orthogonality, etc. ... it will win a Nobel pr

Re: Issue in file sink block

2020-11-03 Thread Aditya Arun Kumar
Yeah Marcus is right, the file sink will do the trick. [image: Mailtrack] Sender notified by Mailtrack 11

Re: Issue in file sink block

2020-11-03 Thread Derek Kozel
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 g

Re: Issue in file sink block

2020-11-03 Thread Aditya Arun Kumar
Or maybe use a gr-baz any sink to view bits? On Tue, Nov 3, 2020 at 5:43 PM Derek Kozel 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 1

Re: explaining i/q

2020-11-03 Thread Kristoff
Jef, Fabian, Aditya, Anon, David, I'll just reply to this one message so not to spam the list to much but please consider this a "thank you" to all for replying. As said, this is for a limited and very specific goal: I will probably be giving a workshop on GRC in a couple of weeks and I want

Re: explaining i/q

2020-11-03 Thread David Hagood
I am sorrowful that you have decided you are going to stick with an explanation that is fundamentally incorrect. I know how direct conversion systems work - I design the software for them for a living. What you are basing your mental model on is an optimization for the case where the system is

Re: explaining i/q

2020-11-03 Thread Kristoff
David, On 4/11/2020 01:18, David Hagood wrote: I am sorrowful that you have decided you are going to stick with an explanation that is fundamentally incorrect. I know how direct conversion systems work - I design the software for them for a living. What you are basing your mental model on is

Re: explaining i/q

2020-11-03 Thread Jeff Long
It's more important to give people some mental picture than to make sure it's completely correct. But, I would not use the "slope" terminology. The important things are, as you've said, (1) with the complex type, you can have a signal at baseband that is not symmetric, and (2) the price for this is

Re: explaining i/q

2020-11-03 Thread David Hagood
Like I said previously: Think of the spinning dancer illusion. It works because you only see from one vantage point. If you saw a real doll spinning, and assuming you have two eyes and normal binocular vision, you will have parallax, and that will allow you to determine in reality which way th

Re: Issue in file sink block

2020-11-03 Thread Maitry Raval
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

Re: Issue in file sink block

2020-11-03 Thread Maitry Raval
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" To: "Aditya Arun Kumar" Cc: "discuss-gnuradio" Sent: Wednesday, N

Re: Issue in file sink block

2020-11-03 Thread Aditya Arun Kumar
Ok, thanks. On Wed, Nov 4, 2020 at 11:28 AM Maitry Raval < 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.