Originally Posted by Russel
Dealing with such high rf frequencys can be expensive and somewhat difficult. It would be difficult to run coax to a higher location, where a better antenna would be effective, without major RF losses. Unless, of course, you spend the money for some expensive coax. I would suggest that your best bet, at least to start out with would be to move the device higher, or run a ethernet cable higher and add a wireless access point. If you have a non-metallic roof, the attic would probably do the trick.
I realize that moving the router probably isn't practical. I would run an Ethernet cable to the attic or at least as high as I could and add a wireless access point, although this would require the purchase of a new device, it would be much cheaper that running a coax to an external antenna one floor above.
As a qualifier, I hold an Extra Class amateur radio license.
Well then you better look again. I have an electrical engineering degree from MIT.
All of this hinges on if the antenna can be unscrewed from the router.
I have shot a a signal over 700 feet with one of these on the end of the 12 meter extension cable.
I was given one of these to do my beta testing thing with. It's a wide footprint at about 500 feet and the signal strength is ok. The QC needs some tighting up.
I have some templates for making reflectors out of common materials you'd find around the house. I'll have to find them. They're on one of the computers somewhere.
The main thing you have to keep in mind is any device that throws of RFI is going to weaken the signal or distort it. And the concrete and brick walls are going to reduce the signal strengh. Not to metion the rebar and steel beams in the walls.
As far as adding another wireless router, you can if you default the second one first then plug a regular cable from one of the ports on the first on to the WAN port on the second one. Nothing tricky about it. It will get treated as a subnet to the main router. I use that configuration to setup subnets at the hotel properties.
Here's one I made out of pre-bent pieces of metal flashing.
Still looking for the others...
I didn't find it on my computer but here's a website that has the plans for the Windsurfer. I've made a few of these out of old folders and aluminum foil. You'll need some paste sticks to glue the foil to the cardboard.
And yes they really do work.