Re: [Discuss-gnuradio] Fwd: Re: FSK now (really) working at 100kbit/sec

[Eric Blossom]

On Mon, Feb 28, 2005 at 02:28:50PM -0500, Bob Vincent wrote:
> 
> 
> HOWEVER, there still seems to be a problem with the USRP decimating filter.
> It is more apparent if the data going in is all zeros or ones, but the same 
> thing happens as before.
> Takes longer for the sidebands to build up, but it's the same problem. I 
> tried cutting back by another factor of 4 with the same result.

I just checked in a fix for gr_frequency_modulator_fc.cc in
gnuradio-core.  It fixes a floating point loss-of-precision problem.
The sidebands as seen in the Tx Post Modulation display are now 70dB
down for the all zero and all one cases.

Please let me know if this works better for you.

Eric