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Technical News & Discussion => Windows News & Discussion => Topic started by: zimmerframe on May 20, 2008, 12:30:09

Title: Higher gain ariel?
Post by: zimmerframe on May 20, 2008, 12:30:09
I use a netgear 834DG router/modem.  Would adding a higher gain ariel to it improve wireless connectivity?

My router is placed at the front of our house and we would usually use a laptop nar the back of the house, a distance of about 30 feet or so, through several walls.

I was looking at something like this http://www.maplin.co.uk/Module.aspx?TabID=1&ModuleNo=97700&doy=20m5

Advice welcome
Title: Re: Higher gain ariel?
Post by: Rik on May 20, 2008, 12:33:03
Is the Netgear antenna detachable, Zim?
Title: Re: Higher gain ariel?
Post by: zimmerframe on May 20, 2008, 12:38:47
Yes it is.  It unscrews.
Title: Re: Higher gain ariel?
Post by: john on May 20, 2008, 12:40:13
I use a Netgear DG834G Router and it's in a similar location to your's Zim although usually the signal has to pass through only two walls. I've never had a problem with the signal strength though (for some reason it varies between Very Good and Excellent even if the laptop is in the same location). I don't know if the ariel advertised will make a diffeence but I think you could return it to Maplins if it didn't. It seems rather expensive at nearly £20.
Title: Re: Higher gain ariel?
Post by: Rik on May 20, 2008, 12:40:52
Should be worth a try then. IIRC, Maplin will allow you to return within 7 days if it's no good for you.
Title: Re: Higher gain ariel?
Post by: merlin on May 20, 2008, 16:29:40
Rik you often use "IIRC" but what does it mean ????? i know most of text speak but not this one
Title: Re: Higher gain ariel?
Post by: Rik on May 20, 2008, 16:30:57
If I recall/remember correctly, Bob. :)
Title: Re: Higher gain ariel?
Post by: Sebby on May 20, 2008, 18:20:03
Solwise do them too. They should be able to offer some advice as well.
Title: Re: Higher gain ariel?
Post by: Dangerjunkie on May 20, 2008, 18:53:34
Hi,

From what I've read "more powerful" antennas generally don't help much in buildings. They're really good at increasing the range in free space between 2 given points (like between 2 buildings) though

The "gain" of an antenna doesn't mean that it produces power from nowhere, just that it concentrates the power of the signal in one or more directions at the expense of the others.

Think of the power from your your antenna as an air-filled rubber ball. With a standard (0dB - "no gain"/"omnidirectional") antenna the power goes in all directions and the ball is round. For a "more powerful" antenna squash the ball between your hand and the desk. You will see more power goes sideways but less up and down so you may get an improvement on the same level as you but your reception will suffer on the floors above and below because less signal is going up and down.

For "directional" antennas squeeze the ball on one side so it bulges out on the other. The power goes mostly one way but away from that direction it's as deaf as a post.

I would definitely recommend getting these new antennas from somewhere you can return them to if they don't give the improvement you want.

The two solutions I would sugegst would be to invest in homeplug mains networking or put in a wireless repeater in the middle of the house.

Cheers,
Paul.
Title: Re: Higher gain ariel?
Post by: Steve on May 20, 2008, 19:05:16
I agree I think mains network/homeplug is the easiest solution for solving the problems of a weak wireless signal inside the house. If mobility is still required you can always buy a homeplug incorporating a wireless adaptor..
Title: Re: Higher gain ariel?
Post by: Rik on May 20, 2008, 19:08:45
Even better, of course, cable the house for ethernet. ;)
Title: Re: Higher gain ariel?
Post by: Sebby on May 20, 2008, 22:12:22
Yep, that really is the best solution, Rik. :)