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SA007
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加入: Sun Oct 25, 2020 11:16 pm

RB951G-2HND - improve wifi range.

Sun Oct 25, 2020 11:34 pm

I have a RB951-2HND haning in a high pole and the wifi range is well below expectations.
(~40m open air and there is almost no signal remaining)

I opened the unit up and there are 2 antenna's in it, looks to me like dipole antenna's at 90 degree angles.
But i can't find any information on the antenna's radiation pattern, is that available somewhere.
(Taking the pole down, rotating it a bit, pole back up, repeat is really slow)

Alternatively, what kind of settings can I change for maximum range, speed isn't all that interesting.
The area is really busy, middle of a city, a scan gives me well over 200 different AP's.
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mkx
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加入: Thu Mar 03, 2016 10:23 pm

Re: RB951G-2HND - improve wifi range.

Mon Oct 26, 2020 8:56 pm

This unit has more or less omnidirectional antennae, do turning it around won't make any noticeable difference. Range of 40 metres is pretty much what can be expected (or even more than expected, most products declare 30m range in open area). High interference from 200 APs you can detect make things much worse.

So if you need better range, you'll have to use some device with directional antenna, look inwireless systemssection. Pair of LHG2 would do nicely, pair of LHG5 would be even better. Just beware that devices listed in that section mostly can't be used as normal access points, they are meant for point-to-point setups.

No, you can not connect external antennae to RB951, those connectors on board are not antenna connectors, they are measurement poins for factory tests.
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SimonThomasen
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Posts: 32
加入: Thu Apr 05, 2012 12:46 am

Re: RB951G-2HND - improve wifi range.

Tue Oct 27, 2020 11:58 am

You can increase power (unless already running default power), but that will only increase the router-to-device range - not the device-to-router range - the devices will not be able to transmit back.
What you do get with higher power though, is also, that the devices will think that its close - when it's not - and they will try to connect, but be unable to.
What you will also get, is a drop in connection speed.
Power for indoors in the same room on a 951 for optimal speed is about power 6-10, 0 gain set.

The 951 is a small home/office router, ideally you would have more of them at opposite ends of a normal house at different channels.

I don't think it has connectors for external antennas?

It has enough power - but as long as it's an omnidirectional, ball-shaped signal, range is limited by design. That antenna will not be able to receive anything back from devices more than 3-4 walls away. Simply because of the limited signal-strength of the devices sending back to it.

If you want a router more suited for home use - have a look at RB2011 - that has 4-6dbi antennas on it, that are more horizontal, with a longer reach.
It should reach most parts of a house if placed in the middle of it, 1.5 meters up.

Or, if you _only_ want an AP, that doesn't need to have many ports:
For home setups, when I have to penetrate an entire residense, I have set up an SXT at the corner of the building.
The SXT's have 30-60 degree signals and should cover an entire buliding. Although that's not what they're meant for, but it usually works.
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