Hi guys, I’m having some doubts about SparkFun PCBs:
taking a look to Ublox NEO-M8P and ZED-F9P breakout boards I can see thin tracks for USB tracks and antenna.
My Eagle is too old version, so I can’t open files, while if I use Eagle ver. 6.6 I can only see TOP and BOTTOM layers.
On board files it’s reported PCB is 0.8mm, so USB and RF tracks are narrower than calculated values.
Is this due to 4 layer PCB (so I suppose I can’t see inner layers), or just due bus/track are so short?
Thanks.