Hi Ivan,

Try building with the gr-ettus maint-3.7 branch.

Jonathon

On Wed, Nov 18, 2020 at 1:08 PM Ivan Zahartchuk via USRP-users <
usrp-users@lists.ettus.com> wrote:

>
> Hello I am trying to install RFNoC for uhd 3.15. As far as I understand,
> this version supports RFNoC. And in order for me to have blocks in
> gnuradio, as I understand it, I need to install gr-ettus. But when
> installing, I get this error The found UHD version (3.15.0.0-3build2) is
> not compatible with the version required (4.0). how can I be in such a
> situation?
>
> ср, 18 нояб. 2020 г. в 16:24, Derek Kozel <de...@bitstovolts.com>:
>
>> Hi Ivan,
>>
>> The TX/RX and RX2 are ports on the same receiver channel. As Julian says
>> there are two receivers, A and B. For a receive only application the RX2
>> ports are slightly better performing as they have one less switch that
>> the signal passes through.
>>
>> Regards,
>> Derek
>>
>> On 18/11/2020 14:01, Julian Arnold wrote:
>> > Ivan,
>> >
>> > to the best of my knowledge, there should not be any RX1 port.
>> > Instead, you should have two (coherent) channels "A" and "B" both
>> > allowing you to select one out of two available antenna ports when
>> > receiving ("TX/RX" or "RX2").
>> >
>> > Cheers,
>> > Julian
>> >
>> > On 11/18/20 10:31 AM, Ivan Zahartchuk via USRP-users wrote:
>> >>
>> >> Another question of interest is which channels are coherent? Rx1 and
>> >> RX2 or RX1 and RX / TX?
>> >>
>> >> вт, 17 нояб. 2020 г. в 01:56, Ivan Iudice <kron...@tiscali.it
>> >> <mailto:kron...@tiscali.it>>:
>> >>
>> >>     Right!
>> >>     Be careful, DOA estimation using only 2 antennas works but it’s not
>> >>     so accurate.
>> >>     Enjoy!
>> >>
>> >>     Ivan
>> >>
>> >>      > Il giorno 17 nov 2020, alle ore 00:35, Ivan Zahartchuk
>> >>     <adray0...@gmail.com <mailto:adray0...@gmail.com>> ha scritto:
>> >>      >
>> >>      > 
>> >>      >
>> >>      >
>> >>      >
>> >>      > That is, in theory, I can simply start two streams from two
>> >>     channels and further process them using certain direction finding
>> >>     algorithms?
>> >>      >
>> >>      >
>> >>
>> >>
>> >> _______________________________________________
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>> >> USRP-users@lists.ettus.com
>> >> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>> >>
>> >
>>
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