Use of radios for communication

[Al Skierkiewicz]

Originally Posted by Solidstate89

They don't operate on even remotely the same frequency. There would be little to no interference between the WiFi that the robots use (I believe they operate on the 5Ghz channel) and the frequency that any cell phone would use over its cellular connection that can range anywhere from 700-800Mhz, to as high as 1700Mhz or even 2100Mhz - all depending on your carrier.

This if of course, assuming proper shielding was used in the cell phones and hotspots to reduce RF leakage.

Sorry, Solid, That is not the way interference works. The third harmonic of 1700 MHz is right in the band. All it needs is a non-linear mixer and voila, interference. Loose aluminum hardware makes a great non-linear mixer. High power RF mixing in the input to a receiver can also produce the same effect. 800 + 2*2100 also comes out on a frequency that can interfere.

[Solidstate89]

Originally Posted by Al Skierkiewicz

Sorry, Solid, That is not the way interference works. The third harmonic of 1700 MHz is right in the band. All it needs is a non-linear mixer and voila, interference. Loose aluminum hardware makes a great non-linear mixer. High power RF mixing in the input to a receiver can also produce the same effect. 800 + 2*2100 also comes out on a frequency that can interfere.

*nods*

Good to know.