How long can wireless router antennae wire be?

Started Jun 19, 2012 | Discussions thread
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KennethKwok
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How long can wireless router antennae wire be?
Jun 19, 2012

I have poor reception for my home wifi at home.

I have got an "external" antennae already.
http://www.tp-link.com/lk/products/details/?model=TL-ANT2408C

But I want to reposition the antennae.
So the wireless router with built in antennae can send signal to the
sitting room,

and the
external antennae can send signal to my bedroom.

I want to buy this 9 metre long cable that attaches the external antennae
to the wireless router.

http://hk.f1.page.auctions.yahoo.com/hk/auction/1130557983

Does this seem feasible?

I do not know what length is functional.

To my humble knowledge, I think USB cable, LAN cable drop
signal after a certain length.

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