3 ms·
Wavelength of FM radio is about 3m, so you only have to be a few centimeters shifted to be seeing an entirely different phase and be out of sync.
by Evidlo 3y ago
Wavelength of FM radio is about 3m, so you only have to be a few centimeters shifted to be seeing an entirely different phase and be out of sync.
- p1mrx 3y agoIf the LEDs blink at 150 Hz, then a single on-off cycle has a "wavelength" of 2000 km. The wavelength of the control signal doesn't seem relevant.
- quickthrower2 3y agoPlus you just add a position based delay. This is quite the bikeshed!
- p1mrx 3y agoHow does the LED know its own position? At that point you might as well abandon FM and use GPS.
- quickthrower2 3y agoSend a few bytes of data onto the SD card on lamp installation. If GPS can do it all in one then that is probably better given how cheap the units are these day.