Sport, I know exactly what you are talking about, I have inside track to the FCC, which is why I posted. So Futaba used “licensed” instead of the more accurate certified/qualified phrase. You know what would happen if they said “qualified” instead of licensed… a bunch of peeps that jump started a car successfully once will believe they are qualified to change the xtal. I understand that technically the Futaba doc is wrong, so be it, the net perception is still correct in that users should not be changing their TX xtals.