I have a 2 wireless cards with a power output of 0dBm, two 5dBi gain antennas, and a 30dB attenuator connected to each antenna. I need to figure out what the path loss will be in this scenario, so I can therefore determine the maximum distance possible between the antennas before they can no longer receive each other's signal.
I know path loss in dB:
L = 20 log_10(4 * π *d / λ)
this one I can use to find the max distance once I know L, but I don't know how to find the path loss due to the attenuation in the first place.
The Attempt at a Solution
I know attenuation is:
= 10 * log_10(power out/ power in)
30 dB = 10 * log(power out/ odBm)
How can I find power out from here?
And how could I use that in the path loss equation?
Thank you for the help.