Thanks everyone for your answer! I understand that some frequency offset will always be there on the Rx but I would like to minimize it.
However, the main problem on my system is on the Tx path as the receiver (which I can not modify) is not having any frequency correction algorithm, so I must Tx as close as possible to the "expected" frequency. Rgds, On Wed, Jul 23, 2008 at 7:34 PM, Konstantin Tarasov <[EMAIL PROTECTED]> wrote: > You still have to remove frequency offset later on in your processing > however. > > Konstantin > > On Wed, Jul 23, 2008 at 4:26 PM, Konstantin Tarasov > <[EMAIL PROTECTED]> wrote: >> >> May be you can try FOX924, you can find this oscillator on >> www.digikey.com. It has 2.5ppm freq. stability, has a 3.3V CMOS output and >> the pinout is almost the same except one pin which is NC on this chip (# 1). >> The package is a little smaller but I am sure you can work it in there. You >> would also have to change settings on the PLL chip since highest frequencey >> of the FOX924 is 27MHz. It is only 9 bucks (if you get one of) and Digikey >> is a very fast supplier. >> >> Konstantin >> >> On Wed, Jul 23, 2008 at 4:06 PM, Brian Padalino <[EMAIL PROTECTED]> >> wrote: >>> >>> On Wed, Jul 23, 2008 at 5:30 PM, Wireless Monster >>> <[EMAIL PROTECTED]> wrote: >>> > Hi All, >>> > >>> > I am having lots of issues with the USRP 64MHz (20ppm) on board >>> > oscillator >>> > which does not allow me to get exact and constant RF frequencies out of >>> > the >>> > RFX900 board. I can not really fix that in SW so I was thinking about >>> > replacing the 64MHz crystal with a more precise one. Has anybody a >>> > suggestion of which part to use? >>> >>> These guys seem to make a whole slew of TCXO's: >>> >>> http://www.rakon.com/ >>> >>> Maybe they'll be interested in supplying you with some more precise >>> crystals? >>> >>> Brian >>> >>> >>> _______________________________________________ >>> Discuss-gnuradio mailing list >>> Discuss-gnuradio@gnu.org >>> http://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> > > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio