Forum: GNU Radio Pmr_Transmitter

Hi,
I have design a pmr446 transmitter. The received signal is not that mush 
good quality and a lot of noise in it. Can any body suggest what to do 
to get good quality signal. The wave file i am using has 22.05 KHz 
sample rate.


Best Regards,
SAJJAD SAFDAR
MSc. Communication Engineering

Hi,

I've just put this together for you.  It works on my USRP2 and WBX but 
if
you have a USRP1 then you must change 'tx_samp_rate' to '64e6/256'.

Download the following two files from http://scanoo.com/grc :

1) 20120122_scanoo.com_wav_nbfm_tx.grc
2) illbeback.wav

Load the GRC file and edit the WAV source block to point to
'illbeback.wav'. Set your PMR446 receiver to channel 7 (446.08125 MHz) 
and
run the flowgraph. With any luck you should hear Arnie :)

Cheers,

Mike
M0MIK