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Failure to receive the correct Preamble

bravehamid

New Member
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
 

Pommie

Well-Known Member
Most Helpful Member
You may think you've given us all the information required but I've no idea what USRP means. Also, no preamble, no data too?

Mike.
 

be80be

Well-Known Member
USRP is a costly SDR radio

sdr.png

There are some cheaper in the $1000 to $2000 range.
 
Last edited:

ronsimpson

Well-Known Member
Most Helpful Member
In collage, this is what girls said to me before they walked off "Failure to receive the correct Preamble".
 

unclejed613

Well-Known Member
Most Helpful Member
there's
transmitter information:
Baud rate=10K
modulation = BFSK
deviation = 100K
channel spacing = 350K
ok, that's what you need to demodulate the signal, but once that is done, what is the protocol the transmitter is using? this is where sync/preamble/header and data format are defined...
 

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