3 ms·
> nor consuming any energy on your radio This simply isn't true. You'll be using power to demodulate at a minimum. You'll also be using energy to ammplify the
by mirashii 10y ago
> nor consuming any energy on your radio
This simply isn't true. You'll be using power to demodulate at a minimum. You'll also be using energy to ammplify the incoming signals and a variety of other things.
- klodolph 10y agoYes, this is also the reason why GPS is so power hungry--it takes a lot of power to keep a GPS radio receiver operating.
- jsjohnst 10y agoClose enough for a quick reply, but it's not the "radio" using lots of power, it's the chip that's doing the signal processing. GPS signals are very weak (approximately -120dbm) and thus below the noise floor. It takes complex FFT operations that actually cause the power hungry nature to find the proverbial needle in the haystack.
- klodolph 10y agoNormally, "radio" includes the amplifiers and demodulators, even if they're digital.