WiFi. Achieve maximum stability and communication quality

K

krotish2011-07-12 06:52:28

WiFi

krotish, 2011-07-12 06:52:28

Good morning Habr!

There are two routers, tp-link 1043nd (dd-wrt). They have 3 antennas, each 3DBi.
There is a D-link antenna at 5DBi.

Routers in the line of sight, 30-50 meters between them.
It is necessary to achieve maximum stability and quality of communication.

questions:
1) What network mode (b / g / n) should I use?
2) There are antenna configuration options in dd-vrt - maybe you should play around with these settings somehow?
3) What is the best way to use a 5DBi antenna? Which of the 3 antennas of the router is used for transmission, and which for reception?

Thank you!

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5 answer(s)

K

krotish, 2011-07-12
@krotish

Stability also increases with an artificial decrease in speed.
How to do it? Set mode g instead of n?

P

Puma Thailand, 2011-07-12
@opium

1) It is more important what range to use, there are thirteen of them, you need to scan the neighboring grids and choose the least cluttered one. Stability also increases with an artificial decrease in speed.
2) You can’t configure the antenna especially in software, in terms of directivity.
3) No way, all are used for transmission and reception.
In general, buy two external directional antennas from a long one and everything will work like a clock.

N

Newsonya, 2011-07-12
@Newsonya

If there is 50m between the routers and there is really a direct line of sight (it is really visible from the window), then no additional antennas are needed, turn on the N mode only, not mixed. Rotate the position of the antennas relative to each other, usually the best way is like this \ | /
Also in DD-WRT there should be a power adjustment, by default there is 75mW. If there are losses, put more, about 150mW, choosing experimentally.

N

Newsonya, 2011-07-12
@Newsonya

TP-LINK TL-WR1043ND has 3x3 MIMO, which means 3 transceiver modules, each with its own antenna, respectively.

L

Lev Lybin, 2011-07-12
@lybin

if direct visibility, select a cleaner channel and everything should be normal, and in addition to everything said above, I also made the direction of the signal, on the opposite side at ~ 10cm I put the metal cover from the system unit vertically.