Hi Domi,
Sorry for wrong spell.  Wkwkk...

Have you try with GPSDO?

Some phone cannot sync or weak with the wave.  Worth to try  :)

regards,
Sandi / DUO

On Thu, Feb 13, 2020, 02:16 Tomcsányi, Domonkos <d...@tomcsanyi.net> wrote:

> Hello Sandi and Neels,
>
> @Neels: :-) \o thanks.
>
> @Sandi:
> Thank you for the idea. I have changed the attenuation to oml, and I could
> observe the following:
> All Qcomm based devices now see the network and with a bit of luck they
> could register: Xiaomi Mi5, Samsung A90 5G, iPhone X.
> However any Exynos based device (S6, S7, S8) simply refuses to even detect
> the network. Any time I put in a sysmocom SIM in a Qcomm based device it
> happily goes on the new network. On the other hand if the same SIM card is
> plugged into an Exynos device it shows No service and even with manual
> search it cannot detect the network.
>
> I assume with other radio hardware (e.g. umTRX) there are no issues with
> Exynos devices, so it is most probably the USRP not being good enough I
> think.
>
> However if anybody has any other ideas I’d still be happy to get any
> feedback and try things out :).
>
> Cheers,
>
> Domi
>
>
> 2020. febr. 12. dátummal, 14:20 időpontban Sandi Suhendro <
> djk...@gmail.com> írta:
>
> 
> Dear Tomi,
> have you try to set attenuation set to OML and osmo-trx?
>
>   osmotrx rx-gain 30
>   osmotrx tx-attenuation oml
>
> Im not sure but I saw your attenuation is set. :-)
>
> I think I face the problem before but using Motorola C115/117 cannot
> connect, but it was resolved now long time ago with newer osmo-bts.
>
> regards,
> Sandi
>
> On Wed, Feb 12, 2020 at 7:10 PM Neels Hofmeyr <nhofm...@sysmocom.de>
> wrote:
>
>> On Wed, Feb 12, 2020 at 09:42:42AM +0100, Tomcsányi, Domonkos wrote:
>> > p.s. It is simply awesome to experience the power of opensource when
>> dealing with 2G. Every step of the way above I was using software created
>> and shared by you guys. It is a great feeling, had to share it :-).
>>
>> Thanks Domi!!
>> I hope someone has answers your questions, I don't but wanted to wave back
>> anyway \o_
>>
>> ~N
>>
>
>
> --
> Best Regards,
> Sandi
>
>

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