Pmr_Transmitter

GNU Radio
1

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

2

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 ScanOo.com is for sale | HugeDomains :

  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 :slight_smile:

Cheers,

Mike
M0MIK