How to use 5Ghz WiFi Network?

Operating on the 5 GHz radio band will provide better bandwidth but only for short distances. In addition, the higher the frequency, the harder it will be for the signal to penetrate objects like walls. If your ATVs are co-located in the same room as the 802.11n AirPort Extreme Base Station, they will be able to take advantage of the higher bandwidth. However, if ATV is in another room, the 5 GHz signal may not reach and you will be limited to using the 2.4 GHz band for connectivity.

1. how do i get to work with the 5Ghz bandwidth.

I assume that, by "new," you have the latest simultaneous dual-band 802.11n AirPort Extreme Base Station (AEBSn) ... correct?

If so by default your AEBSn will broadcast two wireless networks with the same network name. One of those network will be on the 2.4 GHz band, and the other will be on the 5 GHz band. If you want to "force" your computers to connect to the 5 GHz network, you can give that network a different name using the AirPort Utility.

2.and how do i know that i
m working with the (n) protocol and dont with the b/g?
what and where the indicator for that things?

You can determine this with the AirPort icon on your Mac's menu bar. Just Option-click on the AirPort icon (looks like a fan) and note the value for PHY Mode.

Oria Maymon wrote:

first i didn't notice that, and don't find him so far at least about the PHY mode.

and second,
even when i change the name i didnt see the 5Ghz Wifi Network... just the 2.4Ghz Network Name.

what shell i do...?

thanks

On your computer or laptop hold the option key down and click on the Airport icon on the menu bar as Tesserax stated. This will show you the 802.11 a, g, b, or N network that you're connected to. Other details will also be shown.

Then open Airport utility on your computer and click on the base station on the right, then on manual set up. Then click on the Wireless tab. If you're using anything that can't connect to a 5N network, iphone, ipod, etc. set radio mode to automatic. You'll have entered that network name above. That's the one those other devices will connect to. Then click on Wireless Options at the bottom and check the box for the 5G network name and enter a different name for it. You'll need the different name because the ATv2 may just connect to the 2.4 which will probably have the stronger signal. Update those changes. On the ATv2 go to settings click on network and you should see both network names pop up as well as other networks around you. Select the name of the 5G network you created. This is exactly what I did with my ATv2. Mine sits right next to the base station so signal strength is not an issue if yours is further away you might have an issue. But I found that the 5G network extends farther than I was led to believe, at least in my house. Now the issue about Israel will probably require Tesserax's input.

It's possible your imac is too far from the base station to see the 5G network. It should show up in the list when you click on the Airport icon on the menu bar. If it doesn't you might try moving it closer to see if it becomes visible then. Make certain that you don't have the base station set to "create a closed network" which might require you to manually enter the network name and password the first time. If the computer is going to be too far from the base station to get an acceptable signal on the 5G network you may just have to let it connect to the 2.4. You can still set that to be an N only network so theoretically you should see faster connection speeds.

I only have the US version of the AEBSn to compare and it doesn't show an Israel option either. I do know that Wi-Fi only operates in the narrow 20 MHz band in Israel and that channels run from 34 - 64. The upper channels (100 - 165) are not allowed. Unfortunately (for me) none of the country choices would provide you with the correct range of channels for your country.

Did you buy the AEBSn in Israel?