13 Feb
2020
13 Feb
'20
2:10 a.m.
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 <domi(a)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 <
djks74(a)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 <nhofmeyr(a)sysmocom.de>
wrote:
On Wed, Feb 12, 2020 at 09:42:42AM +0100,
Tomcsányi, Domonkos wrote:
--
Best Regards,
Sandi
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