Hi,
During my tests with DBSRX board, I noticed that using the same Local
Oscillator offset tick (by 4MHz) used with the RFX boards in the dbsrx
board, enhanced the dbsrx SFDR by about 14 dB as shown in the following
figures :
http://rapidshare.com/files/79323579/dbsrx.tar.gz
I used 1000.25 MHz
Jens Elsner wrote:
I noticed that (with gain 52) the USRP goes into saturation above -50
dBm and does not quite show linear behaviour below -100 dBm.
Not sure what you mean above. With gain of 52, the system gain is
pretty high. For a strong signal like -50dBm you would want to have
Matt,
thanks for your reply.
> >Using a noise generator, I came up with the following figures:
> >
> >USRP settings: DBSRX, gain 52, decimation factor 32
> >Calibration bandwidth: 190 kHz around center frequency, 3dBm cable loss
> >accounted for
> >
>
> That's a lot of cable loss. Are you s
Replying a bit late here...
Jens Elsner wrote:
As Eric Matlis a while ago (see link to thread at the bottom), I would
like to calibrate my USRP/DBSRX combination for measurements. As noted,
the USRP is not a measurement device, but nevertheless I'd like to give
it a try. My application are GPS
As Eric Matlis a while ago (see link to thread at the bottom), I would
like to calibrate my USRP/DBSRX combination for measurements. As noted,
the USRP is not a measurement device, but nevertheless I'd like to give
it a try. My application are GPS based measurements in the GSM downlink
band.
Using
