What internet router (ADSL) and outside antennae could work well for a distance of 500 metres supplier & cost?

Answer 1

Your best bet in this situation is to use narrow beam directional antennas on both the router and the client side adapters. The big issue is that the cables used for wifi antennas have so great a loss that the outdoor antenna located at any distance from the router will be less than optimal. One solution is to use a power over ethernet kit, which will allow you to put the router near the antenna without having to arrange for a power feed. If you put the router outside, make sure you use a weatherproof enclosure.

Answer 2

Don't want much do you :p

Fortunately the latest MIMO wireless routers have a defty kick and one of those might just do and safe you a fortune on the (considerably more) expensive options.

Without a clue as to the setup and physical environment you envision using this in, it is rather difficult to give you a good after, so hopefully this will suffice:

NETGEAR RangeMax Next ADSL2+ Modem Wireless Router DG834N

Dabs.com have these for about £111
If you shop around you will find specialists with bundles worth looking into - BroadbandBuyer have it with a matching wireless laptop card for £123.

You can read the specs yourself, but it inlcudes:
5-in-1: Modem, Router, Firewall, 4-port Switch, Wireless Access Point
Supports up to 24Mb/s Internet
Wireless speeds of up to 270Mb/s*
And has a range of (I think) up to 500'

Naturally you'll get drop off the futher you go from the router, but I assume you can install an Access point midway - ie the Rangemax WPN802 or whatever passes for it's Rangemax Next :)

Yes, I'm pushing Netgear, but that's because I know and trust them. Easier to use, easy to patch and upgrade. Never let me nor anyone else I know down.

*(The ratified 802.11n is up to 600Mb/s anda firmware patch might (/should/) give the router an appropriate boost)

Addenda:
It you really needs a jump of 500metres then you are going to have to talk to specialist providers. I'd start with Solwise...

http://www.solwise.co.uk/