Re: [Discuss-gnuradio] High noise level reading GSM spectrum.

[Marcus D. Leech]

Matt Ettus wrote:
>
> There is no low pass filter.  Assuming that you are setting the gain
> properly, then most likely problem is that you blew out the LNA in the
> front, U4.  Static or strong signals can do that.  You could try
> replacing U4, which is an MGA82563.
>
> Matt
Matt, I thought that there *was* an LPF on the I and Q channels on the
MAX2118, which is what set_bw() is all about.
  The MAX2118 has programmable lowpass filters on the I and Q outputs,
does it not?

-- 
Marcus Leech
Principal Investigator, Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org