can 5GHZ do 2.4GHZ at the same time ???

[TOPACTION]

Hi, I got a home wireless network a little D-link di-624 router 11mps with 2 computer conected with some 2.4 ghz 11b/g wireless card.

But I'm going to buy a dvd player that got a lan connection and I want to put this dvd on my network using a wireless network converter like DWL-G820 OR DGL-3420 (if its 5ghz)... All this thing is fine until I want to upgrade my router for a 5GHZ.

So my question is , if I buy a new 5 ghz router like the (DI-784) does this router will be able to broadcast at the SAME time to my 2 other pc that got some 11g (2.4ghz) wireless card ?? I know I can decide to broadcast to 2.4 or 5 but since I will probebly watch movie at the same time that some one will be using a computer I want that the 2 computer will work at the same time as my dvd player that will be conected to 5 GHZ..

I hope that I am clear enought... sry for my english guys ;o) french frog here

 

[JackMDS]

802.11b/g and 802.11a can exist in the same envioroment.

:sun:

 

[TOPACTION]

yup but I mean if the SAME router can do 802.11b/g at the same time 802.11a .. I really doubt but hey it cost nothing asking ;o)

 

[ScottMac]

Yes, devices are available that will do 802.11g and 802.11a (the "G" will also be backward compatible with "b" devices).

BUT the 802.11a operates at 5Ghz ONLY, the 802.11g only works at 2.4 (same as "b").

If you want to do both (which includes all three), the device must have both a 2.4G and 5Ghz radio. It will explicitly say on the label that it's for 802.11a/g/b.

802.11a will only work for 802.11a. 802.11g will work for both g and b (but not a - the frequency spectrum is different).

FWIW

Scott

 

[ktwebb]

I'm still a little unclear about what your trying to accomplish. Are you trying to segment your network wirelessly? Perhaps for bandwidth concerns. For instance, you want a media player machine to use the 5Ghz WLAN, but your clients to use the 2.4 Ghz WLAN. So transfers between nodes using the 5 Ghz radio's would not affect the ones using the 2.4 Ghz radio. That is a take I have never really thought about but isn't a terrible idea, especially if you had alot of machines on the overall network. I would upgrade your .11b clients to .11g though.

 

[TOPACTION]

well the main reason was to save money ;o). since my 2 other computer only have wireless for internet connection. BUT my media player will need all the new High tech 5 ghz /G speed since it will transfert Media. So I wanted to know if I would be able to broadcast to my media player who run at 5ghz AND at the SAME time to my 2 other wireless card who run at 2.4. (because I dont want to buy new 5ghz wireless card)100$ can for 1 card OUCH!!!

I know most of all wireless 5ghz router can do 2.4 like the D-link DI-784 but I wanted to know if it can do the 2 mode at the same time . because I am mostly going to give my old 2.4 router to some one.

lets just pray with all the wireless thing will not affect any brain cervical cell. ;o)

 

[JeffMD]

You have the wireless device correct, you have their termonology mixed up. the 820 is 802.11g (2.4ghz), the 3420 is on both b/g (2.4ghz) AND a (5ghz). The 784 is like the 3420 in that it supports all modes. Because the 3420 does A and the 820 only does G, the 3420 is prolly the better choice in game adapter. otherwise you can go with the 820 and a router that only does G and save some money.

I think that since you want a solid fast connection for the dvd player (my avi files still skip on g if I play over the network ^^) you will want it on A.

The router is a good choice (Btw MOST 802.11a routers dont support b/g/2.4ghz.. its expensive since you need 2 wireless chipsets built in.) and will merge your a/g network with any a devices you add.

For future endeviors though remember that, "b" works on 2.4, "a" (which came out after "b") worked on 5ghz, but was largly ignored by consumers because "b" was cheaper and "a" did not work with "b". "g" came out as an answer to that, allowing speeds close to "a" while being the same spectrum as "b", allowing it to talk to "b" devices. "a" still carries some benifits which is why it hasn't died out, the 5ghz spectrum is still fairly uncrowded, especialy if you consider how many other people around you may be using "b/g" networks.

 

[TOPACTION]

Ok thx. so ya the one that I want DI-784 will be able to do trimode and with the corect game adapter DGL-3420 this should be a good instalation.