02-03-2014, 05:40 PM
(02-03-2014, 12:48 PM)Yorkie Wrote: And how many builders and experimenters have test equipment to ensure that the output is below 100mW? Very few would be my guess.
Probably right in that not many experimenters will have equipment to measure RF power. However, most, I hope, would possess DC voltmeters and ammeters.
If the DC power taken by the output stage is less than 100mW, you can be sure that the RF output is less than this. It was how the amateur radio license restricted transmitted power - you just ensure the DC power is below the threshold, and you are compliant. The RF is less than this, depending on how efficient the set-up is, but can never be greater.
