Lista
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Lista got a reaction from Tido in Noise on A10/ A20 board at 866MHz
I chased down EMI problems with A20-Micro in the past. We were using inside and enclosure with some sensitive ADCs.
Had no access to a DSA, but main causes in my case were(in order of importance):
-Power supply- We had a switching wall-wart type supply @12v. Replaced with battery, then with a better quality power supply. Ferrites on the supply cable helped a lot too.
-Buck converter on board the A20-Micro is noisy- Try powering board by the 5v_Ext pins (obviously don't exceed 5v)
If you get an improvement, please share another shot from your DSA.
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Lista got a reaction from Naguissa in Noise on A10/ A20 board at 866MHz
I chased down EMI problems with A20-Micro in the past. We were using inside and enclosure with some sensitive ADCs.
Had no access to a DSA, but main causes in my case were(in order of importance):
-Power supply- We had a switching wall-wart type supply @12v. Replaced with battery, then with a better quality power supply. Ferrites on the supply cable helped a lot too.
-Buck converter on board the A20-Micro is noisy- Try powering board by the 5v_Ext pins (obviously don't exceed 5v)
If you get an improvement, please share another shot from your DSA.