[Laser] 5 mW lasers & LEDs
steve kavanagh
skavanagh73 at yahoo.ca
Fri Nov 1 08:32:21 EDT 2013
Steve
The way I read the ARRL contest rules, the 5 mW limit only applies to lasers:
" Laser usage is restricted to ANSI Z136 Class I, II, IIa, and IIIa (i.e.; output
power is less than 5 mW)."
So if you go with LEDs, you are ok up to 1.5 kW, I think ! As you may be aware, most of the long distance stuff nowadays is being done with power LEDs with focusing lenses - KA7OEI's website is an excellent example:
http://modulatedlight.org/optical_comms/optical_index.html
I recall reading some of your articles way back.....glad to see you are back at it again !
73,
Steve VE3SMA
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