General

Profile

mschramm

  • Registered on: 03/11/2016
  • Last connection: 11/20/2019

Issues

Projects

Activity

10/24/2019

03:58 PM m.2 (NGFF) WWAN modem USB breakout board Bug #4241: measure insertion loss for two alternatives of RF adapter on VNA up to 3GHz
one image is uploaded twice - I think you wanted to upload another screencopy?
01:31 PM m.2 (NGFF) WWAN modem USB breakout board Bug #4241: measure insertion loss for two alternatives of RF adapter on VNA up to 3GHz
The last two pictures show a gain: parts or all of the graph is in 1st quadrant of the graph (not exclusivly in the f...

10/22/2019

11:56 AM m.2 (NGFF) WWAN modem USB breakout board Feature #4201 (Rejected): consider usb type C instead of micro-B
We received several USB-C socket samples of different brands, with mixed THT and SMT pins as well as only SMT.
Ev...
09:42 AM m.2 (NGFF) WWAN modem USB breakout board Bug #4241 (Resolved): measure insertion loss for two alternatives of RF adapter on VNA up to 3GHz
We want to know insertion loss for both alternatives we are thinking of for placing them on the NGFF breakout PCBA:
...

10/18/2019

03:31 PM m.2 (NGFF) WWAN modem USB breakout board Bug #4230 (Resolved): cross Rx/Tx on breakout board
done with _bc7e4ce_ .
03:22 PM m.2 (NGFF) WWAN modem USB breakout board Bug #4230 (In Progress): cross Rx/Tx on breakout board

10/17/2019

06:37 PM m.2 (NGFF) WWAN modem USB breakout board Bug #4231 (Resolved): connect /PERST line @NGFF to POWERGD (pin4 @X2)
done. - laforge wanted to have this signal remain on the pinheader too. To tame that resulting stub, a 33p cap was pl...
05:12 PM m.2 (NGFF) WWAN modem USB breakout board Bug #4231 (Resolved): connect /PERST line @NGFF to POWERGD (pin4 @X2)
Let's accept that there are some people who use POWERGOOD signal as a synonym for /PERST... This change finally made ...
04:40 PM m.2 (NGFF) WWAN modem USB breakout board Bug #4230 (Resolved): cross Rx/Tx on breakout board
As @roh found out during evaluation, the Rx and Tx pairs have to change their places if we want to go on with the sel...
04:19 PM m.2 (NGFF) WWAN modem USB breakout board Bug #4216 (Resolved): connect PCIe conn pin 7 on NGFF to GND

Also available in: Atom

Add picture from clipboard (Maximum size: 48.8 MB)