nansai hu wrote:
I appracite you could tell me what is the meaning of following paramaters:
@param audio_rate: sample rate of audio stream, >= 16k
@type audio_rate: integer
@param quad_rate: sample rate of output stream
@type quad_rate: integer
This is the input and output rates of the block.
@param tau: preemphasis time constant (default 75e-6)
@type tau: float
@param max_dev: maximum deviation in Hz (default 75e3)
@type max_dev: float
No idea, check the source, but the default values are good to get a
working wbfm radio.
I try to change the max_dev from 10 to 1000,and give it to a usrp source as
baseband signal,
For transmit, the usrp expects numbers between +/- 2**15. Your transmit
amplitude should be on the order of 10k. What are you sending it?
-Josh
but, the bandwith on spectrum analyize don not change.How to change
deviation of a fm signal?
2009/10/26 nansai hu <hunan...@gmail.com>
I tried to run your code wfm, but there is nothing happened in my spectrum
analyzer.
I am just wondering that your code is in baseband or how to add a carrier
freq by usrp source.
2009/10/24 Josh Blum <j...@joshknows.com>
nansai hu wrote:
Is anybody had a experiment about How to generate a FM signal?
Use the wideband and/or narrowband fm blocks; just specify your data
rates.
http://gnuradio.org/cgit/gnuradio.git/tree/gnuradio-core/src/python/gnuradio/blks2impl
or tell me how to use FM MOD or VCO module in GRC, what is the paramater
sensitive means?
check the source :-)
-Josh
_______________________________________________
Discuss-gnuradio mailing list
Discuss-gnuradio@gnu.org
http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
