usrp_dual_source want antennas which should be used as input parameters, as follows (I copied this line from a question posted on a thread which was using LFRX daughter cards)
self.usrp_dual_source_x_0 = grc_usrp.dual_source_c(which=0, side_a='A', rx_ant_a='RXA', side_b='A', rx_ant_b='RXB') But I am using RFX2400 daughter cards, which have antennas, RX2, RX/TX, and I want to use only RX2 for both daughter cards (I have 2 RFX2400 daughter cards installed with USRP1), please tell me which of the following should I use: 1- self.usrp_dual_source_x_0 = grc_usrp.dual_source_c(which=0, side_a='RX2', rx_ant_a='RX/TX', side_b='RX2', rx_ant_b='RX/TX') 2- self.usrp_dual_source_x_0 = grc_usrp.dual_source_c(which=0, side_a='RX2', side_b='RX2') If 1 is correct then how can I set RX2 antennas after that. Best Regards Josh Blum-2 wrote: > > There is a handy dual_usrp wrapper in grc: > http://gnuradio.org/trac/browser/gnuradio/trunk/grc/src/grc_gnuradio/usrp/dual_usrp.py > > You can use it like: > from grc_gnuradio import usrp as grc_usrp > grc_usrp.dual_source_c(......) > > Or use the code as an example > > -Josh > > kaleem ahmad wrote: >> Hallo, >> >> We use following when there is only one RFX2400 daughter card (I think >> there >> is onle one subdev in RFX2400 card....Is it correct???). >> >> u = usrp_source(....) >> >> u.set_mux(usrp.determine_rx_mux_value(u, rx_subdev_spec)) >> >> >> Can some one guide me how do I change it when two RFX2400 daughtercards >> are >> used. >> >> And what additional processing needs to be done to separate data streams >> from RX2 antennas of both >> cards. >> >> Best Regards >> >> >> >> >> Jason Uher wrote: >>>> I am using USRP1 + RFX2400. >>>> >>>> You know there are two antenna ports on RFX2400 daughter card those are >>>> RX2, >>>> TX/RX. Is it possible to use both these ports in parallel for data >>>> reception. If yes then pelase provide me little clue how I should do >>>> it, >>>> or >>>> may be refer me to some existing example. >>>> >>>> I have two RFX2400 daughter cards and my problem is to use two >>>> different >>>> ports for data reception, it doesnt matter if I use two ports on a >>>> single >>>> card (i.e RX2, and RX/TX), or two ports on two different cards (e.g. >>>> RX2 >>>> on >>>> each card). Please let me know which one is possible and easier to >>>> implement >>>> and please also refer me to some application where I can find relevant >>>> code. >>>> >>> I do not believe it is possible to receive data from the TX/RX and TX >>> port simultaneously, I believe the are tied to the same set of ADCs. >>> You should use two RFX cards if you are planning on doing MIMO >>> reception. Check in the examples section, I don't think there is a >>> specific 2 antenna receive example with the 2400's; but there is a 4rx >>> fm receiver that you should be able to extrapolate from. >>> >>> Jason >>> >>> >>> _______________________________________________ >>> Discuss-gnuradio mailing list >>> [email protected] >>> http://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>> >>> >> > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > -- View this message in context: http://www.nabble.com/parallel-data-reception-tp24053297p24069761.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
