# N210: detectable with uhd\_probe, unusable with gnuradio-companion **URL:** \ **Category:** GNU Radio\ **Created:** [February 18, 2011, 4:23am UTC](https://www.ruby-forum.com/t/n210-detectable-with-uhd-probe-unusable-with-gnuradio-companion/203344 "2011-02-18T04:23:59Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![luislavena](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/0ea827/32.png) [@luislavena](https://www.ruby-forum.com/u/luislavena)\ **Post date:** [February 18, 2011, 4:23am UTC](https://www.ruby-forum.com/t/n210-detectable-with-uhd-probe-unusable-with-gnuradio-companion/203344/1 "2011-02-18T04:23:59Z")
Hi everyone. I’m continuing my quest to try out my new USRP N210 and WBX transceiver board. I still haven’t managed to make it do anything useful yet. I have it attached directly to a Mac OS X 10.6 system, via the built-in gigabit ethernet interface. I updated N210 to the latest firmware available on Thursday, 2011-2-10. I also downloaded gnuradio-current on the same day and managed to get it compiled and installed. (I have a couple of patches to submit in this regard, by the way). So I am now finally at a point where I feel confident that I can make some signal graphs and actually listen to things on the air. I started with the gnuradio-companion wide-band FM receiver example, but modified it so that it uses a UHD Single USRP source. When I generate and execute this graph, I get the following error: — gnuradio-companion stdout/stderr — > > > gr\_fir\_fff: using SSE > > > mboard0 MIMO master ## Warning: WBX: No tunable bandwidth, fixed filtered to 40MHz UHD source block got error code 0x1 gr\_block\_executor: source \ produced no output. We’re marking it DONE. I configured that source as follows: ID : uhd\_single\_usrp\_source\_0 Input type : Complex Num Channels : Single Channel Device Addr : addr=192.168.10.2 Ref Clock : Internal Subdev Spec : Sample Rate (sps) : 500000 Ch0: Center Freq (Hz): 100700000 Ch0: Gain (dB) : 10 Ch0: Antenna : Ch0: Bandwidth (Hz) : 250000 Here’s some information that I’ve seen requested on the mailing list that might be helpful: — uhd\_usrp\_probe — Mac OS; GNU C++ version 4.2.1 (Apple Inc. build 5664); Boost\_104500; UHD\_002.20110204025144.dfb3ed0 mboard0 MIMO master * * * ## / | Device: USRP2/N Series device | \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ | / | | Mboard: USRP-N210 mboard | | rev: 2561 | | mac-addr: a0:36:fa:25:30:f4 | | ip-addr: 192.168.10.2 | | serial: EFR10Y4UP | | \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ | | / | | | RX DSP: USRP-N210 ddc0 | | | Codec Rate: 100.000000 Msps | | \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ | | / | | | TX DSP: USRP-N210 duc0 | | | Codec Rate: 100.000000 Msps | | \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ | | / | | | RX Dboard: USRP-N210 dboard (rx unit) | | | \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ | | | / | | | | RX Subdev: WBX (0x0053) | | | | Antennas: TX/RX, RX2 | | | | Freq range: 68.750 to 2200.000 Mhz | | | | Gain range PGA0: 0.0 to 31.5 step 0.5 dB | | | | Connection Type: C | | | | Uses LO offset: No | | | \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ | | | / | | | | RX Codec: USRP-N210 adc - ads62p44 | | | | Gain range digital: 0.0 to 6.0 step 0.5 dB | | | | Gain range digital-fine: 0.0 to 0.5 step 0.1 dB | | \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ | | / | | | TX Dboard: USRP-N210 dboard (tx unit) | | | \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ | | | / | | | | TX Subdev: WBX (0x0052) | | | | Antennas: TX/RX | | | | Freq range: 68.750 to 2200.000 Mhz | | | | Gain range PGA0: 0.0 to 25.0 step 0.1 dB | | | | Connection Type: C | | | | Uses LO offset: No | | | \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ | | | / | | | | TX Codec: USRP-N210 dac - ad9777 | | | | Gain Elements: None ----- /share/uhd/examples/rx\_timed\_samples ----- Mac OS; GNU C++ version 4.2.1 (Apple Inc. build 5664); Boost\_104500; UHD\_002.20110204025144.dfb3ed0 Creating the usrp device with: … mboard0 MIMO master Using Device: Single USRP: Device: USRP2/N Series device Mboard 0: USRP-N210 mboard RX DSP 0: USRP-N210 ddc0 RX Channel: 0 RX Dboard: USRP-N210 dboard (rx unit) RX Subdev: WBX (0x0053) TX DSP 0: USRP-N210 duc0 TX Channel: 0 TX Dboard: USRP-N210 dboard (tx unit) TX Subdev: WBX (0x0052) Setting RX Rate: 6.250000 Msps… Actual RX Rate: 6.250000 Msps… Setting RX Freq: 0.000000 Mhz… Warning: The hardware does not support the requested RX frequency: Target frequency: 0.000000 MHz Actual frequency: 100.000000 MHz Actual RX Freq: 100.000000 Mhz… Setting device timestamp to 0… Begin streaming 1000 samples, 3.000000 seconds in the future… Got packet: 362 samples, 3 full secs, 0.000000 frac secs Got packet: 362 samples, 3 full secs, 0.000058 frac secs Got packet: 276 samples, 3 full secs, 0.000116 frac secs Done! ---
**Author:** ![Jeremy\_Cooper](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/a88e4f/32.png) [@Jeremy\_Cooper](https://www.ruby-forum.com/u/Jeremy_Cooper)\ **Post date:** [February 18, 2011, 6:16am UTC](https://www.ruby-forum.com/t/n210-detectable-with-uhd-probe-unusable-with-gnuradio-companion/203344/2 "2011-02-18T06:16:21Z")
> Warning: > WBX: No tunable bandwidth, fixed filtered to 40MHz You probably have something in the bandwidth parameter. Use zero to not set. > UHD source block got error code 0x1 > gr\_block\_executor: source \ produced > no output. We’re marking it DONE. So there was an issue with some macos not working with the udp/asio implementation. You should be able to demonstrate this pretty easily with the examples/rx\_timed\_samples that comes w/ uhd. I fixed it here fa35192bcb89c6f026d76d7f5190e22341840a47 by disabling the implementation, and the next branch has the implementation completely re-worked. Make sure that you have the most recent master or next branch built and installed. -Josh ---
**Author:** ![Jeremy\_Cooper](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/a88e4f/32.png) [@Jeremy\_Cooper](https://www.ruby-forum.com/u/Jeremy_Cooper)\ **Post date:** [February 18, 2011, 7:43am UTC](https://www.ruby-forum.com/t/n210-detectable-with-uhd-probe-unusable-with-gnuradio-companion/203344/3 "2011-02-18T07:43:47Z")
On Thu, 17 Feb 2011, Josh B. wrote: > > Warning: > > WBX: No tunable bandwidth, fixed filtered to 40MHz > > You probably have something in the bandwidth parameter. Use zero to not set. Change to zero. > > UHD source block got error code 0x1 > > gr\_block\_executor: source \ produced > > no output. We’re marking it DONE. > > So there was an issue with some macos not working with the udp/asio > implementation. You should be able to demonstrate this pretty easily > with the examples/rx\_timed\_samples that comes w/ uhd. If you saw my entire message, I copied the output of rx\_timed\_samples; it appeared to be working just fine. > I fixed it here fa35192bcb89c6f026d76d7f5190e22341840a47 by disabling > the implementation, and the next branch has the implementation > completely re-worked. > > Make sure that you have the most recent master or next branch built and > installed. I did this 30 minutes ago, as you suggested, and I’m still getting the same error. -J