Re: Failure to receive the corrected Preamble

2020-05-12 Thread 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,

Re: Failure to receive the corrected Preamble

2020-05-12 Thread Christophe Seguinot
Hi Without any knowledge about the signal (which standard is used? ) nor about your flowgraph, anyone can answer your question! 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

Failure to receive the corrected Preamble

2020-05-11 Thread Hamid Rahatloo
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