Repeaters help get around wi-fi hurdles

Feb 12, 2012, 2:06 GMT

Berlin - Repeaters are one way of overcoming wi-fi problems caused by great distances or other hurdles. These small devices are set up about halfway between a router and a receiver, helping the signal reach its destination, reports German computer magazine c't.

There are two basic kinds of repeaters. The first are compact models that can fit directly into a power socket. If you've got more space, opt for a larger model that comes with its own adapter, as it's easier to place these where they can be most effective.

A c't test of 11 wi-fi repeaters, ranging in price from 26-70 euros (34-91 dollars), showed wide variations in power consumption between the different models. The least power-consuming models used the equivalent of 3 euros a year, while hungrier models consumed about 12 euros a year, more than an actual router uses in many cases.

It's generally easy to set up a repeater using a wi-fi protected setup. But important security steps, such as inputting a configuration password, usually have to be done by hand. Also, if you plan to use wi-fi in the 5-gigahertz (GHz) range, you'll find yourself with a limited selection of repeaters. Ten of the 11 tested models transmitted at 2.4 GHz.

Theoretically, old, unused routers could be put to work as repeaters. In practice, it usually only works if both the old and new router come from the same manufacturer.

Bear in mind, it's sometimes possible to get a wi-fi network back on its feet without buying extra gadgets. Sometimes it's just a matter of moving the router a few centimetres in one direction or turning it a bit, which can result in dramatic improvements.