Re: Failure to receive the corrected Preamble

[Marcus D. Leech]

On 05/12/2020 03:49 AM, Christophe Seguinot wrote:
> Hi
>
> Without any knowledge about the signal (which standard is used? ) nor 
> about your flowgraph, anyone can answer your question!
"I wrote a program.  It doesn't work.  Please help me fix it."   So many 
questions.

With so little information, any answer might be reasonable--like 
"there's an elephant in your plumbing--please try removing it.".
    "Your children are plotting against you--that's probably what's 
causing this".

We're happy to help, BUT, we cannot provide help with a question that is 
so vague as to be of NO HELP TO THE HELPERS.


> On 12/05/2020 07:38, Hamid Rahatloo wrote:
> > HI
> > I'm using a USRP to receive a signal on the 900 MHz frequency band, 
> > but the signal received after demodulation has no preamble. Does 
> > anyone know what the cause is?
> > transmitter information:
> > Baud rate=10K
> > modulation = BFSK
> > deviation = 100K
> > channel spacing = 350K