Hi,
this will help
http://zhixun-wireless.top/10mhz-001ppm-ocxo-compatible-with-b210<http:/…
www.zhixun-wireless.top<http://www.zhixun-wireless.top/>
provide SDR PA LNA duplexer
Best Regards
________________________________
From: Neels Hofmeyr <nhofmeyr(a)sysmocom.de>
Sent: Wednesday, April 3, 2024 8:37
To: JPichel <jonathanpc(a)protonmail.com>
Cc: openbsc(a)lists.osmocom.org <openbsc(a)lists.osmocom.org>
Subject: Re: Channel Requests not being responded when running CS-only 2G network
On Fri, Mar 29, 2024 at 11:09:24PM -0000, JPichel wrote:
This are some examples of the problems I am
experiencing, and they all seem to involve one of the radio not responding to some
messages. Also I noticed this mainly happens the more I wait without making any connection
between a terminal and the network, so if I connect the terminal to the network, then wait
10 minutes, and try to execute an USSD code, it is more likely than there is a error
establishing the connection.
This sounds like the time I was using a B210 without a solid external clock.
Randomness to the point of sometimes seeming reliable.
Funny part is, it didn't get better when I connected a GPS antenna.
Then learned that the B210 had only the external connector without a GPS receiver inside.
Connecting the 10MHz external oscillator made things work nicely.
(Or a sysmoBTS also does.)
~N
--
- Neels Hofmeyr <nhofmeyr(a)sysmocom.de>
http://www.sysmocom.de/
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