Antennas has been in use in the UK for at least 30 years and Chambers dictionary specifically differentiates.
The only pieces of advice I can give: stick with a single manufacturer for extension antennas and WAP. Fitting a different brand of antenna may work but with mismatched impedances you could end up with lower power or no increase. Directionals work, but the moment you move across the room the signal drops completely and may still not be enough to get through wall.
I have seen many attempts at using various combinations of antennas and very few give an OVERALL improvement. The ones which have worked best are those which retain the original OMNI antenna and uses an extension cable to allow appropriate positioning, but even that can results signal degradation
If your problems are that bad, run fixed ethernet cabling to additional locations and install extra WAPs. I currently have 4 WAPs running as I have steel sheets across the floors and foiled backed plasterboard in certain areas - all are wire back to the main switch.
M H C
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