Thank you, Now it works with exact frequency . On Fri, Aug 14, 2015 at 9:35 AM, Marcus Müller <marcus.muel...@ettus.com> wrote:
> Hi Hoang, > > the 380MHz is the lower frequency you can get with a RFX400. That's > correct. > > You can chose your daughterboard by using the number of channels argument > (if you want both), or the subdev spec [1], like: > B:0 > to select the WBX in your second slot. > > Best regards, > Marcus > > [1]http://files.ettus.com/manual/page_configuration.html#config_subdev > > > On 08/14/2015 12:21 PM, Hoang Nguyen Tran wrote: > > Dear, > > Sorry if I have too much question, I am getting started with GNU radio, > and I did not find the answer for this on the Internet. > > I have USRP1 and inside it has 2 daughter boards: WBX and RFX400. > I run the FM receiving grc file and got this > > UHD Warning: > Tune Request: 102.500000 MHz > The ification: > Target Frequency: 102.500000 MHz > Clipped Target Frequency: 380.000000 MHz > The RF LO does not support the requested frequency: > Requested LO Frequency: 380.000000 MHz > RF LO Result: 400.000000 MHz > Attempted to use the DSP to reach the requested frequency: > Desired DSP Frequency: 20.000000 MHz > DSP Result: 20.000000 MHz > Successfully tuned to 380.000000 MHz > > I changed various frequency and figure out the range that has Successfully > tuned is from 380Mhz to 520Mhz. > I don't know why this happen, the WBX suppose to have range from 50Mhz to > 2200Mhz. Does it come from the wrong firmware ? > And moreover, my USRP has 2 daughter board, so how can I choose exact > daughter board to use ? In UHD USRP source of GNU radio. only have options > for antenna port for example RX2 or TX/RX, right ? > > Best regards, > Hoang > > -- > -HoangNT- > PhoneNo : +841654248782 > Skype : hoangastro > FB : https://www.facebook.com/kenshin.rorouni > > > _______________________________________________ > Discuss-gnuradio mailing > listDiscuss-gnuradio@gnu.orghttps://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > -- -HoangNT- PhoneNo : +841654248782 Skype : hoangastro FB : https://www.facebook.com/kenshin.rorouni
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