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External antenna makes a difference on the Linksys WRT54GC router just like an external antenna on a cell phone. Noticeable increase in signal strength around the house,especially on an Acer laptop,which already has the best antenna design of any laptop out there. Almost as good a signal on my wifi single antenna based HP desktop. Highly recommended if you don't want to shell out money on a new wireless-N router and PC card(s).Note this is wireless-G only (the most common wifi).
That's an improvement from the 14 to 28 MBS we had before the antenna. The antenna helped a bit with my son's PC that was distant from the router. Receive speed now varies from 28 to 54 MBS and does not drop out as much. I think it would work even better if we had bought the cable and antenna stand to relocate it all to a better place (eg, off the floor and behind the tower). That by itself might have worked as well as replacing the antenna.
At home I placed this HGA7S antenna on my Linksys Wireless-G Broadband WRTP54G router and now both wireless computers get excellent signal level, and a steady 54Mb transfer rate, on both floors of my home.I also installed a HGA7S antenna on my HP m8120 computer at church. With the supplied antenna from HP I got poor signal level, and a 2Mb transfer rate. After installing the Linksys High Gain Antenna for SMA Connectors on my HP m8120n computer, I get fair signal level and 24Mb transfer rate. That is pretty good for going 75 and feet through 5 walls.
I find this unit to be of no advantage what ever. The signal has not improved, a waste of money.
But its effectively doubled the range of the router, and I now get a good signal in the kitchen 2 rooms away which I didn't before and I do get a weak signal enough to work with, in an upstairs bedroom at the other end of the house. I've screwed this device on to my compact Linksys router, a WRT54GC model. The antenna is huge, about 11" tall, and it dwarfs the little compact router. So its been a worthwhile investment. Only thing is, it should have been priced at around $30 or less; the current price isn't exactly fair.
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