[USRP-users] difference between N210 and X310

john liu johncorad1988 at gmail.com
Fri Mar 11 03:15:25 EST 2016


Hi,Marcus,
     thank you for your reply.
     We changed nothing besides for N210 to X310,so the sampling rate keep
the same.We checked  antenna port carefully,it's right.We run the
benchmark_rx/benchmark_tx on X310 with UBX,the test rezult is also OK.
     Do you have any advice?
best ergards
John


On Thu, Mar 10, 2016 at 1:39 AM, Marcus Müller <marcus.mueller at ettus.com>
wrote:

> Though the CBX and the UBX are relatively different, I'd expect ubx
> performance to be no worse than the performance of the CBX.
>
> Have you tried adjusting gain settings? Are you still using the same
> sampling rate? I tend to wrongly connect the front connectors; are you sure
> you're using the right antenna port?
>
> Best regards
> Marcus
>
> Am 9. März 2016 10:17:47 MEZ, schrieb john liu via USRP-users <
> usrp-users at lists.ettus.com>:
>
>> Dear all,
>>            We run our program which is a LTE  downlink program,developed
>> base on gnuradio.We test it transmit and receive on N210 with CBX,the
>> rezult is OK,and the  constellation is clear ,and the error rate below
>> 1%.But when we change N210 to X310 with UBX160,and the others keep the
>> same,the  test rezult become so worse.The constellation is no regular,and
>> the error rate almost to 1.So, must we change some setting when change N210
>> to X310?
>>            We run our program on ubunutu 14.04LTS,with UHD3.9.2.
>> best regards
>> John
>>
>>
>>
>>
>> ------------------------------
>>
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>> USRP-users at lists.ettus.com
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>>
>>
> --
> Sent from my Android device with K-9 Mail. Please excuse my brevity.
>
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