Wifi antenna according to PIRE law: 30 to 100mw (Calculation of the PIRE Radiated power dBm = transmitter power dBm - loss in the cable dB + antenna gain dBi)
GSM antenna: 1 to 2W
hardly anyone makes sufficient efforts to go back to the sources, to men.
What you say, but each his own domain
for now i'm interested in debt and finance https://www.econologie.com/forums/article-10 ... t6156.html
https://www.econologie.com/l-escroquerie ... -3920.html
and other topics
but please enlighten us, everyone must be a specialist in their field, otherwise they will fly in general and be wandering around as you say
We are well aware here that film lobbyism is everywhere where there are interests
When you are 20 cm from the Wi-Fi hotspot, the exposure is 0,2 W / m2, i.e. one-twentieth of the limit value. At 50 cm, we fall to 0,03 W / m2, it is logarithmic
A conventional WiFi hotspot has a maximum isotropic power of 100 milliWatts. It is of the same order of magnitude as the base station of a cordless home telephone (DECT)
Engime
The power is expressed either in Watts or in the relative unit in decibels relative to the milliwatt (dBm).
Here is the formula giving the correspondence between the two: dBm = 10 * log10 (P / 0.001)
A distinction must be made between transmitting power and amplifying power
(reception).
By adding a 19dbi satellite dish for example and keeping
full power PA is illegal.
On the other hand, by reducing the power of the AP to the minimum, we remain in
the legal emission limit (AP power - cable loss + loss
connect + antenna). But the amplification power allows
long distance connections of several kilometers, provided you have the
same equipment at each end.
To sum up, you have to emit weakly and amplify a lot, at each
end...
Here are 2 links which allow to understand and even to calculate !!!
http://www.swisswireless.org/wlan_calc_fr.html
Very interesting this link
http://www.swisswireless.org/wlan_calc_fr.html
The PIRE law in France: 100mW of maximum transmit power gives 20dBm (dBm = transmitter power dBm - loss in the cable dB + antenna gain dBi)