Alfa Network APA-M25 dual-band 2.4GHz/5GHz 8/10dBi high gain directionele binnenpaneelantenne met RP-SMA-connector (vergelijk met Asus WL-ANT-157)

Perhaps the best $20 I've spent in a long while. I replaced one of the stock antennae on an AC68p that was incapable of reliably getting a 2.4GHz signal from the back of the house 50 ft. through two external walls and 1-2 interior ones onto the front porch. Pre-dawn (lower heat in the back room and/or fewer neighbors using their networks in the apartment building 30 feet away), I could previously get 11mbps downstream on my IPhone (2.4GHz 11n) in this location, according to SpeedTest. During daylight, at least in warmer months, throughput disappeared--still connected on 2.4GHz, but no usable data transmission. I had adjusted the control channel and took similar usual optimization measures. My AP wasn't even the strongest signal on the porch, thanks to one neighbor (damn you, Babaganoush!). Meanwhile, my 11AC laptop on 5GHz was still able to get 27mbps link rate (according to Windows, not throughput) when my phone lost connectivity: under ideal conditions (pre-dawn, cool temps), this could go up to 117mbps.Unscrew, screw in new antenna, point. Although the phone still registers only 2 of 3 bars most of the time, it oscillates with 3 bars, SpeedTest consistently gives me 24mbps+ in the afternoon. My laptop link rate on 11ac is not significantly better, however.I wasn't expecting more. In fact, this is better than I'd expected on 2.4GHz. All of my devices are either 1x1 I-devices or 2x2 laptops. So, I still have the two omnidirectional antennas in place, plus this directional one pointed straight down the length of my house. I was a good candidate for a directional antenna like this to work well for the specific problem location.I'll also note that purchasing this came after an entire day spent trying to get an old DD-WRT router set up as a repeater. The crowded network environment and lack of clear channels really didn't let me do this at all. Not to mention, I upgraded my router in the first place so that I wouldn't have to have multiple routers plugged in. And, the repeater would have needed a separate SSID for stability, it seems. So, the antenna was a much more elegant solution.

The interesting thing to note about wifi is that *each* 3 db is a doubling in signal strength. Therefore this will double or even treble your signal strength - which makes a world of difference to your browsing speeds.This is a dual band antenna, so will work with older 54 mbps and 150 mbps and the new 5 GHz networks.The new AC networks work at high speed over short distances (30-40 foot), so this antenna ensures that even if you're 2 rooms away, you get the maximum speed from your new routers.If you're over say 50 foot away, then you'll probably find the 2.4 ghz network will be your best option. The benefit of the older 2.4 Ghz networks, is that they travel much longer distances (so that you can sit in your back garden). You'll get 300 mbps easily from your garden with this antenna.Luckily this antenna offers both frequencies, so you're future proof. It also means if you go to Starbucks or your a hotel and they have an old wifi system, you can still connect.The maximum speed of a g network is only 54 mbps, but the N networks are either 150 or 300 mbps. The AC networks offer over 850 mbps. The point here, is that if the router is only transmitting at 54 mbps, then the antenna can only match that speed, it can't improve it if the router itself is on a zimmerframe. I know, life isn't fair!I have 100% link and 100% signal strength on my AC router... which I couldn't get before (as it's through 2 foot walls).It works great on long distance wifi - or in older houses. Plus it lets you work in your garden if you want to.It will bring an older laptop upto date with the latest and highest speeds.Because the antenna works with both 2.4 ghz and 5 ghz networks, this means you're future proof for the new home routers and capable of working in your back garden and over long distances.

Does what it's supposed to. Works very well. Took the 2.4Ghz network signal from about -48 to -38. 5Ghz went from -65 to -55. Hard to give exact numbers as it changes throughout the day but the best I've seen is -36/-49 respectively which is a HUGE improvement. Took 5Ghz from mostly unusable 2 bars to a full reliable 4 bars which was the whole reason I got it.Antenna is very directional as it should be. Seems to catch reflections off the wall which might make you think it doesn't matter which way you point it, but it certainly does. Pointing it at the corner or straight up drops the signals to -75 or so. Also make sure you are careful of polarization. That is you should have it pointing the same way (vertical in my case) as the router antennas. Turning it 90 degrees lost 5 to 10 dbm.Your not going to want to stick this directly on a PCI card at the back of your PC. The way they articulate, you cannot make them face forward. Left/Right/Backwards/Up/Down are the only choices. It is somewhat big, but about the same size as a good quality omni-directional antenna. I am using it with Asus' included antenna mount which holds two antennas. The combination of these two directional antennas and placing them on top of the case where there is better line-of-sight makes a vast difference and made 5Ghz viable and reliable even through 2 walls at about 30ft.And to remove all doubt, the logo is the active side and should face your router. They aren't lying about 16 degrees vertical coverage either. Almost wish they made these things with a sight hole to aim them precisely.At $25 they can be hard to justify, especially getting two of them in my case. You get what you pay for though.

Muito bom ganho e alcanço. Recomendo.

Ottima antenna direzionale. Tutto come descritto. Funziona benissimo. Consigliato vivamente.