Orsdxy

3 1 $begingroup$ I often find a thru cal on RF PCB like picture below. What is the purpose of having this thru cal thing on the board? One purpose I can think of is to test whether the designed transmission line is truly 50 ohms over the frequency of interest. I did some research online and there are some people saying that the purpose of this thru cal is for "through-reflect-line" (TRL) testing. But I was not convinced with this argument since TRL technically needs other two lines (reflect and line). Can anyone explain this to me from their experience? pcb rf share | improve this question asked 2 hours ago ...

0 Magento2.2.5 based multisite (multi store view)seems to be creating a lot of temporary tables such as catalogrule_product__temp9a310576 catalogrule_product__temp998786f4 etc... However I am not sure why these tables are being created they all seem to be empty? database magento2.2.2 share | improve this question asked Dec 14 '18 at 19:55 Jayreis Jayreis 173 7 31 add a comment  |  ...

0 I installed a module called FireGento MageSetup2, and then didn't need it anymore. I then disabled it, uninstalled it then removed it from the composer. However, when trying to load the Web Setup, spinning error occures due to a 500 error at /setup/index.php/componentGrid/components This is the message shown: error plugin setup share | improve this question edited 14 mins ago Teja Bhagavan Kollepara 2,948 4 18 47 asked Nov 27 '17 at 8:54 zcoyne zcoyne ...