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Adding a third internal antenna for Intel 4965AGN - Page 2

post #21 of 38
10/1/07 at 10:31pm
If your 3945 is under the keyboard, then yes you swap it with that.

In my case it located via an acess panel on the bottom of the laptop
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post #22 of 38
10/3/07 at 1:29pm
Quote:
Originally Posted by loai View Post
i got a Dell E1505, everything been super until i formatted my PC to ged rid of all the crap that came with it. so all drivers were automatically updated except the wireless network card. i got Intel Wireless WiFi Link 4965AGN. i downloaded the driver from intel. BUT i can see that it's not the way it used to be. before formatting, when connecting to an access point, even if the signal strength was 3 bars, when connected the signal strength is max. but now, if the signal strength is 3 bars when connected it'll still be 3 bars. what's with the 3 antennas? how to know how many antennas i got? thx for the help guys
The three antennas are used for MIMO (Multi-In/Multi-Out). In the 801.11n draft MIMO uses 1 antenna for 2.4ghz, 1 antenna for 5ghz, and 1 antenna as a control. Dell failed to add a third antenna to the e1505 and e1705, there by crippling these laptops to a maximum of 130mbps. If the third antenna was implemented these laptops should be able to connect up to 300mbps. These figures assume that you are using a 802.11n draft router. The problem I am having is finding a U.FL antenna capable of handling 5ghz. I attempted to use an antenna from my old Toshiba 802.11g laptop. I also have attempted to get Dell to sell me a set of antennas from a M1710 or D620. They absolutely refuse to sell me antennas for a laptop that I do not own even after explaining that Dell crippled the laptop. I also cannot find any on ebay that specifically stat that they will operate at 5ghz. Anyone had any success adding an antenna to there E1705 or E1505?
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post #23 of 38
1/8/08 at 11:23am
Hi
Show this thread http://www.notebookforums.com/showth...hlight=4965agn
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post #24 of 38
1/8/08 at 3:13pm
I picked up a third antennae for an intel card. I bought it for short money at oxfordtec. Installing I though was going to be tricky but it was not.

All I had to do was insert the antenae into the hole under the lcd panel where the other antanea wires go into. The entire process can be easily undone if you decide later on.
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post #25 of 38
1/8/08 at 4:15pm
Just ordered a third antennae from oxfordtec! Thanks for the info!
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post #26 of 38
1/9/08 at 5:28pm
Hello Usted, for what computer did you do this to, and was there was a metal bracket in the top of your screen you could solder the third antenna to just like the other two wires? Did you get a faster connection speed than 130mbps with the N band enabled?

I have taken my screen assembly apart to see if I could do what I am asking and was wondering if all three wires must have three seperate metal plates to connect to. The current setup in my E1505 has a lone wire to a metal tab in the top left and another lone wire on the right with two connection points where the other had just one. What is even more confusing is that there seems to be no concern as to seperating the two wires of the coaxial cable when soldering as if all wires are grounded to the same point.
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post #27 of 38
1/9/08 at 7:33pm
No need for soldering. The laptop was an e1705, the antenae was simple to install and took little to no time. I am using a g rotuer with the mimo and will be updating it later. From what I have read, the intel cards wont operate at 300mbps. I opted for this card over an atheros card since there was initially allot of instability with the atheros cards.
Quote:
Originally Posted by greekflier View Post
Hello Usted, for what computer did you do this to, and was there was a metal bracket in the top of your screen you could solder the third antenna to just like the other two wires? Did you get a faster connection speed than 130mbps with the N band enabled? I have taken my screen assembly apart to see if I could do what I am asking and was wondering if all three wires must have three seperate metal plates to connect to. The current setup in my E1505 has a lone wire to a metal tab in the top left and another lone wire on the right with two connection points where the other had just one. What is even more confusing is that there seems to be no concern as to seperating the two wires of the coaxial cable when soldering as if all wires are grounded to the same point.
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post #28 of 38
1/12/08 at 4:03am
I installed the 3rd antenna but can't get my 4965 to see all three antennas. Any settings or tips?
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post #29 of 38
1/13/08 at 2:59am
Sounds a bit odd. If your antenae's are firmly connected then it should be using all 3 antenas. I tried experimenting with placement of the anteneas onto different positions on the card but it made little to no change at all.

Regardless your card should be seeing all 3 antena's. If you are using the intel pro-set wireless software it will show you details about your connection. It will in the details show how many antenas are in use.

I would suggest making sure that your antenas are firmly connected to the connectors. I found it was easier to connect the antenas to the card first then roll it into the slott afterwards.
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post #30 of 38
1/14/08 at 2:43pm
I tried the wireless at my office and it reports all three antennas in use. So I think its my crappy wireless router at home that was not using all three. Unless its some Intel 802.11n issue. Here is the break down:

Home 802.11n Intel software reports 2 antenna in use.
Office 802.11g Intel software reports 3 antenna in use.
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post #31 of 38
1/21/08 at 2:05pm
Now my 4965 is reporting 3 antenna in use with my home 802.11n router, but I'm only getting 144mb. Anyone know if the Intel 4965 is limited or if I need to get a router with a different chipset?
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post #32 of 38
2/3/08 at 12:58pm
In an earlier post on this thread it said that if you have two antennas hooked up you only get 144mb to get 300 you need the 3rd.
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post #33 of 38
2/3/08 at 1:55pm
Quote:
Originally Posted by saho View Post
In an earlier post on this thread it said that if you have two antennas hooked up you only get 144mb to get 300 you need the 3rd.

I have the third one. I think its my home router and I will be replacing it soon.
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post #34 of 38
12/8/08 at 1:32am
I am replacing a b/g card with the intel n card but not sure how to hook up the antennas. The present 2 antennas hook up to which points on the new card and which position gets the new 3rd antenna that I have ordered. Also can someone tell me where to locate the 3rd antenna and how to get the drivers for the card. The dell computer is the e1505 with windows xp media edition.
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post #35 of 38
12/8/08 at 2:05am
I believe the Antenna connecotrs are marked 1, 2, and 3.

As far as adding the third antenna, try ebay search for U.FL you see various antennas with the U.FL connecotr on them.

You can install the antenna in the base or if you get an antenna with a long enough cable run it up into the display aong with the other 2.

Last. Drivers if it is a Dell card try searching Dells site for the driver using the model of laptop the card is found in.
You should also be able to locate the drivers from the manufacter's site such as Intel etc.
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post #36 of 38
12/8/08 at 2:54am
Hi,
Thanks for the help. Any idea where to hook up the present 2 antennas to the new card and which connector on the new card should get the new antenna? TIA.
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post #37 of 38
12/8/08 at 3:55am
OxfordTec have Antenna's here they ship worldwide and accept paypal.

Doesn't really matter which antenna goes where, as the WLAN card will use all 3 at once
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post #38 of 38
7/17/09 at 5:20am

Third antenna

I have a Dell D830 Latitude and It was originally supplied with the 4965AGN Intel card and this came with three antennas, recently we bought a Dell Studio and it also had three antennas although only two were used on the present card supplied with the pc, therefore you will possibly find the third with a little rubber protector over the connector together with the other two.
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