Does antenna make a difference?

Ayoubi93

Commendable
Jun 13, 2016
2
0
1,510
I have a nano usb adapter with an internal antenna (tp link wn725n) 150mbps Transmit Power <20dBm.
My new router is too far so i barely get a signal but i can't connect to it.
If i buy a high gain usb adapter with two antennas (tp link wn822n) 300mbps Transmit Power
<20dBm EIRP, Antenna Gain
3dBi, does i make a difference?
By the way, i don't care about speed because my internet connection is 1mbps
 
Solution
Antenna and the radio combined are what is important. I am not surprised that silly nano thing works badly. It is so tiny the antenna are almost inside your machine which greatly reduces the ability to send and receive signals. A usb extension cable should help a small amount.

Pretty much the optimum combination is a 250mwatt radio and 6db of antenna. This is the combination many routers use. This give the legal 1watt or 30db gain allowed. 20dbm is only 100mw so 30db is 10 times the power. I suspect though that the 20db is the radio power only so the total unit may have 23db.

Many USB based dongles trade size and power for battery savings....that nano is the example of trading size for low power.

Not sure exactly which...
Antenna and the radio combined are what is important. I am not surprised that silly nano thing works badly. It is so tiny the antenna are almost inside your machine which greatly reduces the ability to send and receive signals. A usb extension cable should help a small amount.

Pretty much the optimum combination is a 250mwatt radio and 6db of antenna. This is the combination many routers use. This give the legal 1watt or 30db gain allowed. 20dbm is only 100mw so 30db is 10 times the power. I suspect though that the 20db is the radio power only so the total unit may have 23db.

Many USB based dongles trade size and power for battery savings....that nano is the example of trading size for low power.

Not sure exactly which to recommend. You can look the radio power up on the FCC site with the FCCID but it is a pain to read the reports.


You may be better off using powerline networks if that is a option. Many times increasing the power of your wireless also increases the amount of signal that is being absorbed by the walls and other objects in the path. You seldom get all the increase you hope for.
 
Solution