Re: missed keystrokes problem, back with a vengeance.
There's electrostatic shielding and electromagnetic shielding, I'm not
sure which is which type. A radio signal has both components, the
electrostatic doesn't carry far. A shielded loop antenna is mostly
electrostaticly shielded and made from shielded wire (coax) wire but a
good receiving antenna in noisy environments like a city.
Where you've got those individual wires going to terminal strips try
braiding as much as you can of them, because that makes them into
twisted pairs. Especially for the wires in differential pairs an
induced noise spike will cause currents in opposite directions that
cancel each other.
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