Hi Ayaz, This is a USRP question rather than a GNU Radio one so I've copied your message over to the other list. If you're not a member of the usrp-users mailing list you should join that so you can see the responses.
It looks like you have BasicRX and BasicTX daugtherboards installed, is that correct? Those daughterboards expose the I and Q channels independently to SMA connectors. You can read about how to use them in different configurations on this page in the manual. http://files.ettus.com/manual/page_dboards.html#dboards_basicrx Regards, Derek On Thu, Aug 2, 2018 at 8:32 PM, Ayaz Mahmud <ayazmah...@hotmail.com> wrote: > Hi, > > > > In addition, I have done the following troubleshooting steps as mentioned > in the page: > > > > Fan spin (checked) > > Front Panel LEDs (D & F always ON), C (On while Receiving) > > Voltages : J105 (2.5v), J104 (3.3c), J107(1.2v) – all OK > > Did not found any other LED on motherboard ON except D202 > > > > Thanks, > > Ayaz > > > > *From: *Ayaz Mahmud <ayazmah...@hotmail.com> > *Sent: *Thursday, August 2, 2018 11:44 AM > *To: *discuss-gnura...@gnu.org > *Subject: *[Discuss-gnuradio] USRP N200 issues and fault troubleshooting > > > > Hello, > > > > 1. *“uhd_usrp_probe” *(attached) gives the attached output, where I > see the Antennas & Sensors field are showing blank. Is this normal (N200) ? > Because for other devices I am using like B210 it shows the Antenna names. > > > > 1. For testing purpose if I run the below command which gives error in > antenna naming. But if I skip the (-A RX2) it runs without any error. > > > > *“uhd_fft –args “addr=192.168.10.2” -A RX2 -s 10e6 -g 10 -f 100e6”* > > > > Traceback (most recent call last): > > File "/usr/local/bin/uhd_fft", line 448, in <module> > > main() > > File "/usr/local/bin/uhd_fft", line 431, in main > > tb = uhd_fft(args) > > File "/usr/local/bin/uhd_fft", line 128, in __init__ > > self.setup_usrp(uhd.usrp_source, args) > > File "/usr/local/lib/python2.7/dist-packages/gnuradio/uhd/uhd_app.py", > line 156, in setup_usrp > > self.vprint("[ERROR] {} is not a valid antenna name for this USRP > device!".format(ant)) > > NameError: global name 'ant' is not defined > > > > 1. To make sure if the receiver is working or not, I have designed a > flow graph for fm radio. I can get a clear signal in my B210 device, but at > the same configuration it just noise in N200. > > > > What should be my next step to troubleshoot ? Or how can I be sure that it > is a faulty device? > > > > Thanks > > Ayaz > > > > > > _______________________________________________ > Discuss-gnuradio mailing list > discuss-gnura...@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > >
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