Menu
What's new
By:
Filters Better Search

Search results

  • SNBForums Code of Conduct

    SNBForums is a community for everyone, no matter what their level of experience.

    Please be tolerant and patient of others, especially newcomers. We are all here to share and learn!

    The rules are simple: Be patient, be nice, be helpful or be gone!

  1. E

    Question about signal strength

    I am not buying this Faraday cage argument - yes it will affect the result but not to this degree. I am not getting full understanding of "within a noise field" - it may affect some results but not completely make it wrong. Why the scale starts at 0dBm so 1mW? Edimax states they signal is 25mW...
  2. E

    Question about signal strength

    So assuming this 14dBm is real EIRP then I should be getting 25mW of power from antenna. Then if this signal goes only 10 cm :) why my phone says it is -20dBm. If -20dBm is 0.01 mW (according to some charts) does it mean that signal received is 2500 times lower? Is there any math to explain why...
  3. E

    Question about signal strength

    I think I found my answer here: https://superuser.com/questions/298290/wireless-router-signal-strength-stats Basically dBm value is useless to calculate real broadcast power.
  4. E

    Question about signal strength

    I have red few articles like this one though it is not answering my question or I do not understand. Following decibel scale from sound engineering I understand that in example if you have 10W speaker you need to have 100W speaker to be 2 times louder or 1000W to be 3 times louder. dB scale is...
  5. E

    Question about signal strength

    Hello If spec on the router says that output power is around 14dBm then I understand that when my phone is next to router then application like NetSpot (or any signal strength measure tool) on my phone should indicate that network power is positive so why I never go more than -20dBm? Thanks
Top