General

Profile

roh

  • Registered on: 02/18/2016
  • Last connection: 09/20/2018

Issues

Projects

Activity

09/19/2018

11:54 AM OsmoGSMTester Feature #2760: osmo-gsm-tester: Add support for several (osmo-)trx to OsmoBtsTrx
i did some tests now and compared multi-arfcn on apu2 to only one arfcn.
one arfcn: one core at ~70% load. system ...
10:41 AM OsmocomBB Support #2704: set up FCDEV1B board so it can be remotely accessed remotely
the serials moved:
its on
pci-0000:00:12.2-usb-0:5.3:1.0-port0 - ttyUSB2
pci-0000:00:12.2-usb-0:5.3:1.1-port0 ...

09/18/2018

02:46 PM Misc Hardware Projects Feature #3566 (In Progress): build charger for gsm-r toys
i disassembled one ops 940nd which had some mechanical defects (2 of the screw-sockets are broken out)
from what i...
01:59 PM Misc Hardware Projects Feature #3566: build charger for gsm-r toys
timba:
5V (+ center - ring) 2.4A
01:54 PM Misc Hardware Projects Feature #3566 (In Progress): build charger for gsm-r toys
figure out a pinout/spec for these 2 kinds of devices:
* sagem NNG OPS 940
** pogopins from device to battery
** e...

09/11/2018

03:42 PM Misc Hardware Projects Support #3523 (Resolved): assemble + test SFP experimentation board with LVDS transceivers onboard
ic placed.
board tested.
2 important details:
there was a need to place a bias resistor from RD_N to ground ...
03:33 PM Misc Hardware Projects Support #3524 (Resolved): assemble + test SFP breakout board
testing completed.
i can get signals through this pcb fine at the expected signal levels.
one wish: some arrows p...

09/05/2018

05:47 PM Misc Hardware Projects Support #3524: assemble + test SFP breakout board
i have done some tests with various frequencies from 10MHz to 155Mhz using the td_p and td_n port respectively and te...
04:02 PM Misc Hardware Projects Support #3523 (In Progress): assemble + test SFP experimentation board with LVDS transceivers onboard
it seems i missed that we do not have the lvds transmitters yet yesterday.
so IC1 is still missing, the rest is placed.

09/04/2018

03:46 PM OsmoTRX Bug #3341: osmo-trx-lms RF Envelope FAIL on LimeSDR, but not on LimeSDR-mini
i checked 3 limesdr-mini v1.1 now, of which one is working (with $unknown firmware version) _somehow_, but not correc...

Also available in: Atom

Add picture from clipboard (Maximum size: 48.8 MB)