Questions tagged [data-transmission]

Sorry if this was asked before. I was unable to find such a question elsewhere in SE. Why does space-wave communication (ie/ satellites) utilize different ground-station (GS1) broadcast and satellite (S)(re)broadcast frequencies? If "interference"…

One of my client wants RS485 data from my remote field instrument to their control panel which is around 3km away. I know, RS485 won't work for such distance. Converting RS485 to optical signal will work for up to several km's. Since, in this…

My question: let message signal m(t) be sin(w1t).For frequency modulation (instantaneous phase deviation=phi(t)) d[phi(t)]/dt=kf m(t) so i get that at 90° or π/2 frequency will be max because the amplitude of sinw1t is max. So same results should be…