Sorry, one other note. When you have a PCB design to do, remember to ask for the cost of embedded vias, if you need to have two ground planes for shielding, and make sure they encapsulate the power plane:
Top Layer- signals
Next layer GND1
Next layer POWER
Next Layer GND2
Next layer signals
Bottom layer signals
Comments
Top Layer- signals
Next layer GND1
Next layer POWER
Next Layer GND2
Next layer signals
Bottom layer signals
Ham Radio Operator N4AEE, Advanced