Hi Matthew,
On Wed, Nov 16, 2022 at 12:42:48AM +0000, Matthew H wrote:
I think this might be misleading. This post https://www.mail-archive.com/openbsc@lists.osmocom.org/msg10239.html inspired me to use an SDR to check for BTS activity and sure enough it does briefly transmit and then stop.
so 1800 MHz is confirmed then?
The Telnet log shows "TRX is not responding - reinitialising the unit..." and it looks like the BTS reboots shortly after.
it might still be some "unexpected" parameters in our OML which trigger this kind of malfunction in the BTS stack.
I did see the photos on the Wiki ofa NanoBTS with bad caps. Is that a known issue?
Not that I've heard of so far.
Visually the capacitors look fine in both units. Unfortunately the 1800MHz model has some quite serious corrosion inside and looks like some compartments have been flooded with sea water or something caustic.
ugh. ok.
Unless anyone has some inspiration I don't think it's worth digging too deeply into the Osmocom side as it's likely hardware issues.
probably, given your description.