Tom Donaly, KA6RUH wrote:
"DC stands for Direct Current. What is static, direct current, charged
particle?

Tom addressed Cecil Moore, W5DXP. I`ll risk a breach of protocol and
respond though I was not addressed.

Put a charge on a speck of dust, snow flake, or rain drop. Propel it
through space by any means. The moving charge is an electric current.
What kind of current depends on its trajectory. A unidirectional
atraight trip is without doubt a d-c flow.

If the chrge is propelled regularly back and forth, it possibly
qualifies as a-c.

If the charge lands on a bare antenna wire, it likely will abruptly give
some of its charge to the antenna wire. In this case, the singular event
is a pulse and a static discharge.

Best regards, Richard Harrison, KB5WZI