Actually I am trying for 25Msps of sampling rate only but the laptop command windows shows UUUUUUUUUU. so should I try at faster laptop or there is some solution by changing some variables in UHD driver to get the higher desired sample rate? Jay Prakash B.Tech Part III Electronics Engineering IIT BHU VARANASI On Wed, Jun 27, 2012 at 12:00 AM, <usrp-users-request@lists.ettus.com>wrote: > Send USRP-users mailing list submissions to > usrp-users@lists.ettus.com > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > or, via email, send a message with subject or body 'help' to > usrp-users-request@lists.ettus.com > > You can reach the person managing the list at > usrp-users-owner@lists.ettus.com > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of USRP-users digest..." > > > Today's Topics: > > 1. Re: UDP Socket, SO_RCVBUF (Simon HB9DRV) > 2. Re: UDP Socket, SO_RCVBUF (Simon HB9DRV) > 3. Re: UDP Socket, SO_RCVBUF (mleech@ripnet.com) > 4. Does each antenna of USRP N210 can both transmit and receive? > (Weixian Zhou) > 5. Re: Does each antenna of USRP N210 can both transmit and > receive? (mleech@ripnet.com) > 6. Re: Does each antenna of USRP N210 can both transmit and > receive? (Alex Zhang) > 7. Re: Does each antenna of USRP N210 can both transmit and > receive? (Nick Foster) > 8. Re: Does each antenna of USRP N210 can both transmit and > receive? (Alex Zhang) > 9. using tune_request_t (Sanat Gulvadi) > 10. Re: using tune_request_t (Josh Blum) > 11. Re: using tune_request_t (Sanat Gulvadi) > 12. Re: Broken gpsdo or bad antenna? (Dario Lombardo) > 13. Regarding the 112 decimation and 174 decimation factors > (Birhane Alemayoh) > 14. MIMO Cable (Damien Serant) > 15. Re: Broken gpsdo or bad antenna? (Nick Foster) > 16. Sampling rate for usrp2 (JAY PRAKASH) > 17. Re: Sampling rate for usrp2 (mleech@ripnet.com) > 18. Re: Sequence Errors on USRP N200 (Jahshan Bhatti) > 19. USRP2 synchronization (JAY PRAKASH) > 20. Re: Broken gpsdo or bad antenna? (Dario Lombardo) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 25 Jun 2012 18:47:32 +0200 > From: "Simon HB9DRV" <simon@hb9drv.ch> > To: <josh@ettus.com>, <usrp-users@lists.ettus.com> > Subject: Re: [USRP-users] UDP Socket, SO_RCVBUF > Message-ID: <028901cd52f2$37d56e70$a7804b50$@hb9drv.ch> > Content-Type: text/plain; charset="us-ascii" > > Josh, > > If I'm using fc32 as the sample type then am I correct in assuming that > with > a 10MHz sample rate the bandwidth is 10 * 2 (I+Q) * 4 (size of float) = > 80MS/s? > > Simon Brown, HB9DRV > http://dit-dit-dit.com > > You are standing at the end of a road before a small brick building. Around > you is a forest. > A small stream flows out of the building and down a gully. The sunspot > count > is 285. > > -----Original Message----- > From: usrp-users-bounces@lists.ettus.com > [mailto:usrp-users-bounces@lists.ettus.com] On Behalf Of Josh Blum > > The constructor takes arbitrary key/value pairs. One possible key is the > "recv_buff_size". By default this is 50MB. See docs here: > > http://files.ettus.com/uhd_docs/manual/html/transport.html#resize-socket-buf > fers > > > > > ------------------------------ > > Message: 2 > Date: Mon, 25 Jun 2012 19:01:27 +0200 > From: "Simon HB9DRV" <simon@hb9drv.ch> > To: <usrp-users@lists.ettus.com> > Subject: Re: [USRP-users] UDP Socket, SO_RCVBUF > Message-ID: <029101cd52f4$29196380$7b4c2a80$@hb9drv.ch> > Content-Type: text/plain; charset="us-ascii" > > Crap, too much German beer :) > > If I'm using fc32 as the sample type then am I correct in assuming that > with > a 10 MS/s sample rate the bandwidth is 10 * 2 (I+Q) * 4 (size of float) = > 80 > MB/s? > > Simon Brown, HB9DRV > http://dit-dit-dit.com > > You are standing at the end of a road before a small brick building. Around > you is a forest. > A small stream flows out of the building and down a gully. The sunspot > count > is 285. > > > -----Original Message----- > From: usrp-users-bounces@lists.ettus.com > [mailto:usrp-users-bounces@lists.ettus.com] On Behalf Of Simon HB9DRV > Sent: 25 June 2012 18:48 > To: josh@ettus.com; usrp-users@lists.ettus.com > Subject: Re: [USRP-users] UDP Socket, SO_RCVBUF > > Josh, > > If I'm using fc32 as the sample type then am I correct in assuming that > with > a 10MHz sample rate the bandwidth is 10 * 2 (I+Q) * 4 (size of float) = > 80MS/s? > > Simon Brown, HB9DRV > http://dit-dit-dit.com > > You are standing at the end of a road before a small brick building. Around > you is a forest. > A small stream flows out of the building and down a gully. The sunspot > count > is 285. > > -----Original Message----- > From: usrp-users-bounces@lists.ettus.com > [mailto:usrp-users-bounces@lists.ettus.com] On Behalf Of Josh Blum > > The constructor takes arbitrary key/value pairs. One possible key is the > "recv_buff_size". By default this is 50MB. See docs here: > > http://files.ettus.com/uhd_docs/manual/html/transport.html#resize-socket-buf > fers > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > > > > > ------------------------------ > > Message: 3 > Date: Mon, 25 Jun 2012 13:07:28 -0400 > From: mleech@ripnet.com > To: <usrp-users@lists.ettus.com> > Subject: Re: [USRP-users] UDP Socket, SO_RCVBUF > Message-ID: <d9e0726b7b88a7d9ad0771a5a9dbdd73@ripnet.com> > Content-Type: text/plain; charset="utf-8" > > > > On 25 Jun 2012 13:01, Simon HB9DRV wrote: > > > Crap, too much German > beer :) > > > > If I'm using fc32 as the sample type then am I correct in > assuming that with > > a 10 MS/s sample rate the bandwidth is 10 * 2 (I+Q) > * 4 (size of float) = 80 > > MB/s? > > > > Simon Brown, HB9DRV > > > http://dit-dit-dit.com > > There are only two "wire format" types: sc16 and > sc8 > > For sc16 (16-bit I 16-bit Q): > > 10MS/s * 32-bits = 320Mbits/second > > > For sc8 (8-bit I 8-bit Q): > > 10Msps * 16-bits = 160Mbits/second > > Now, > if you're talking about the host side and doing calculations for disk > writes or something, then, fc32 is 32-bits I 32-bits Q: > > 10Msps * > 64-bits = 640Mbits/second > > = 80Mbyte/second > > >

You need a faster computer. Really, there's no much tweaking that can be done at the driver level to improve things when you're getting consistent overrruns. And if your TX processing is complicated, you may find it difficult even to keep up at 25Msps from even a fairly "beefy" host computer. -Marcus On 26 Jun 2012 13:04, JAY PRAKASH wrote: > Actually I am trying for 25Msps of sampling rate only but the laptop command windows shows UUUUUUUUUU. > > so should I try at faster laptop or there is some solution by changing some variables in UHD driver to get the higher desired sample rate? > > Jay Prakash > B.Tech Part III > Electronics Engineering > IIT BHU > VARANASI > > On Wed, Jun 27, 2012 at 12:00 AM, <usrp-users-request@lists.ettus.com [170]> wrote: > >> Send USRP-users mailing list submissions to >> usrp-users@lists.ettus.com [1] >> >> To subscribe or unsubscribe via the World Wide Web, visit >> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com [2] >> or, via email, send a message with subject or body 'help' to >> usrp-users-request@lists.ettus.com [3] >> >> You can reach the person managing the list at >> usrp-users-owner@lists.ettus.com [4] >> >> When replying, please edit your Subject line so it is more specific >> than "Re: Contents of USRP-users digest..." >> >> Today's Topics: >> >> 1. Re: UDP Socket, SO_RCVBUF (Simon HB9DRV) >> 2. Re: UDP Socket, SO_RCVBUF (Simon HB9DRV) >> 3. Re: UDP Socket, SO_RCVBUF (mleech@ripnet.com [5]) >> 4. Does each antenna of USRP N210 can both transmit and receive? >> (Weixian Zhou) >> 5. Re: Does each antenna of USRP N210 can both transmit and >> receive? (mleech@ripnet.com [6]) >> 6. Re: Does each antenna of USRP N210 can both transmit and >> receive? (Alex Zhang) >> 7. Re: Does each antenna of USRP N210 can both transmit and >> receive? (Nick Foster) >> 8. Re: Does each antenna of USRP N210 can both transmit and >> receive? (Alex Zhang) >> 9. using tune_request_t (Sanat Gulvadi) >> 10. Re: using tune_request_t (Josh Blum) >> 11. Re: using tune_request_t (Sanat Gulvadi) >> 12. Re: Broken gpsdo or bad antenna? (Dario Lombardo) >> 13. Regarding the 112 decimation and 174 decimation factors >> (Birhane Alemayoh) >> 14. MIMO Cable (Damien Serant) >> 15. Re: Broken gpsdo or bad antenna? (Nick Foster) >> 16. Sampling rate for usrp2 (JAY PRAKASH) >> 17. Re: Sampling rate for usrp2 (mleech@ripnet.com [7]) >> 18. Re: Sequence Errors on USRP N200 (Jahshan Bhatti) >> 19. USRP2 synchronization (JAY PRAKASH) >> 20. Re: Broken gpsdo or bad antenna? (Dario Lombardo) >> >> ---------------------------------------------------------------------- >> >> Message: 1 >> Date: Mon, 25 Jun 2012 18:47:32 +0200 >> From: "Simon HB9DRV" <simon@hb9drv.ch [8]> >> To: <josh@ettus.com [9]>, <usrp-users@lists.ettus.com [10]> >> Subject: Re: [USRP-users] UDP Socket, SO_RCVBUF >> Message-ID: <028901cd52f2$37d56e70$a7804b50$@hb9drv.ch [11]> >> Content-Type: text/plain; charset="us-ascii" >> >> Josh, >> >> If I'm using fc32 as the sample type then am I correct in assuming that with >> a 10MHz sample rate the bandwidth is 10 * 2 (I+Q) * 4 (size of float) = >> 80MS/s? >> >> Simon Brown, HB9DRV >> http://dit-dit-dit.com [12] >> >> You are standing at the end of a road before a small brick building. Around >> you is a forest. >> A small stream flows out of the building and down a gully. The sunspot count >> is 285. >> >> -----Original Message----- >> From: usrp-users-bounces@lists.ettus.com [13] >> [mailto:usrp-users-bounces@lists.ettus.com [14]] On Behalf Of Josh Blum >> >> The constructor takes arbitrary key/value pairs. One possible key is the >> "recv_buff_size". By default this is 50MB. See docs here: >> http://files.ettus.com/uhd_docs/manual/html/transport.html#resize-socket-buf [15] >> fers >> >> ------------------------------ >> >> Message: 2 >> Date: Mon, 25 Jun 2012 19:01:27 +0200 >> From: "Simon HB9DRV" <simon@hb9drv.ch [16]> >> To: <usrp-users@lists.ettus.com [17]> >> Subject: Re: [USRP-users] UDP Socket, SO_RCVBUF >> Message-ID: <029101cd52f4$29196380$7b4c2a80$@hb9drv.ch [18]> >> Content-Type: text/plain; charset="us-ascii" >> >> Crap, too much German beer :) >> >> If I'm using fc32 as the sample type then am I correct in assuming that with >> a 10 MS/s sample rate the bandwidth is 10 * 2 (I+Q) * 4 (size of float) = 80 >> MB/s? >> >> Simon Brown, HB9DRV >> http://dit-dit-dit.com [19] >> >> You are standing at the end of a road before a small brick building. Around >> you is a forest. >> A small stream flows out of the building and down a gully. The sunspot count >> is 285. >> >> -----Original Message----- >> From: usrp-users-bounces@lists.ettus.com [20] >> [mailto:usrp-users-bounces@lists.ettus.com [21]] On Behalf Of Simon HB9DRV >> Sent: 25 June 2012 18:48 >> To: josh@ettus.com [22]; usrp-users@lists.ettus.com [23] >> Subject: Re: [USRP-users] UDP Socket, SO_RCVBUF >> >> Josh, >> >> If I'm using fc32 as the sample type then am I correct in assuming that with >> a 10MHz sample rate the bandwidth is 10 * 2 (I+Q) * 4 (size of float) = >> 80MS/s? >> >> Simon Brown, HB9DRV >> http://dit-dit-dit.com [24] >> >> You are standing at the end of a road before a small brick building. Around >> you is a forest. >> A small stream flows out of the building and down a gully. The sunspot count >> is 285. >> >> -----Original Message----- >> From: usrp-users-bounces@lists.ettus.com [25] >> [mailto:usrp-users-bounces@lists.ettus.com [26]] On Behalf Of Josh Blum >> >> The constructor takes arbitrary key/value pairs. One possible key is the >> "recv_buff_size". By default this is 50MB. See docs here: >> http://files.ettus.com/uhd_docs/manual/html/transport.html#resize-socket-buf [27] >> fers >> >> _______________________________________________ >> USRP-users mailing list >> USRP-users@lists.ettus.com [28] >> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com [29] >> >> ------------------------------ >> >> Message: 3 >> Date: Mon, 25 Jun 2012 13:07:28 -0400 >> From: mleech@ripnet.com [30] >> To: <usrp-users@lists.ettus.com [31]> >> Subject: Re: [USRP-users] UDP Socket, SO_RCVBUF >> Message-ID: <d9e0726b7b88a7d9ad0771a5a9dbdd73@ripnet.com [32]> >> Content-Type: text/plain; charset="utf-8" >> >> On 25 Jun 2012 13:01, Simon HB9DRV wrote: >> >> > Crap, too much German >> beer :) >> > >> > If I'm using fc32 as the sample type then am I correct in >> assuming that with >> > a 10 MS/s sample rate the bandwidth is 10 * 2 (I+Q) >> * 4 (size of float) = 80 >> > MB/s? >> > >> > Simon Brown, HB9DRV >> > >> http://dit-dit-dit.com [33] >> >> There are only two "wire format" types: sc16 and >> sc8 >> >> For sc16 (16-bit I 16-bit Q): >> >> 10MS/s * 32-bits = 320Mbits/second >> >> For sc8 (8-bit I 8-bit Q): >> >> 10Msps * 16-bits = 160Mbits/second >> >> Now, >> if you're talking about the host side and doing calculations for disk >> writes or something, then, fc32 is 32-bits I 32-bits Q: >> >> 10Msps * >> 64-bits = 640Mbits/second >> >> = 80Mbyte/second >> >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: <http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20120625/75395faf/attachment-0001.html [34]> >> >> ------------------------------ >> >> Message: 4 >> Date: Mon, 25 Jun 2012 14:33:00 -0400 >> From: Weixian Zhou <ideazwx@gmail.com [35]> >> To: usrp-users <usrp-users@lists.ettus.com [36]> >> Subject: [USRP-users] Does each antenna of USRP N210 can both transmit >> and receive? >> Message-ID: >> <CAHeRwcQbF07RkrFeEM+8Mhu2m7v-4wrFqhhOwCaNHkStBuVbhQ@mail.gmail.com [37]> >> Content-Type: text/plain; charset="iso-8859-1" >> >> I am using USRP N210 and the daughter boards are XCVR2450. Does each >> antenna can both transmit and receive, or one antenna can only transmit and >> another can only receive? >> >> -- >> Regards, >> Weixian Zhou >>