The new high power LEDs are recent technology compared to lasers. LEDs also
have proven to be better for communications. I suggest the rules specify
allowing any light not produced by thermal energy. But then then that wouldn'e
exclude fluorescent light? I think the rules should also specify a reasonable
minimum distance instead of capable of 1 KM. Even 1 KM with laser is to easy.
Why not require both non mechanical modulation plus some sort of electrical
detection on receive?
W4DEX
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