3 ms·

One wouldn't need special high frequency coax. Bog standard RG-58/U for example has about 1dB loss per meter (or yard). The loss in the cable means less attenua

• mlyle 4y ago
  > One wouldn't need special high frequency coax. Bog standard RG-58/U for example has about 1dB loss per meter (or yard). It's also not too close to 50 ohms up that high above design frequency and the connectors make huge reflections. > Quite possibly most WiFi radios can reach low transmit and high receive levels, as some devices are placed in proximity and some at large distance. Path loss of even adjacent antennas is pretty high. Again, though, this is all a huge diversion: all I did was point out that Ring does actually offer PoE doorbells, and you came in and "corrected" me.
  • DoctorOetker 4y ago
    As I said, you'd have to find out the characteristic impedance at the u.FL connector first, and then select the appropriate coax (obviously at the frequency of interest). BTW does the PoE doorbell you linked actually have an ethernet network, or does it just use it for power? I fully concede my original comment should have replied your parent, but the following replies were responses to the contents of your comments (Frankenstein, etc.)
    • mlyle 4y ago
      > BTW does the PoE doorbell you linked actually have an ethernet network, or does it just use it for power? Yes, it uses it for data and power (power is optional: you may power it separately)