Antenna Modification on a Dell 1450 usb

hi , somebody can help with my Dell 1450 usb wifi card , i want to use a external antenna with my usb card but i don't know how do it

thanks ...

AXL

You have to crack it open, which voids the warranty. You can't do anything until you do. Just do it. Then post pictures, so we can proceed with some idea of what's in there.

1450usb : Free Image Host.

here this is my usb , i hope you can help me

AXL

Right side of the screen, two vertical rectangles top and bottom. Looks like a long driveway leading to a turnaround between two buildings. Those are the connections to the antennas.



Left side of the screen: Two metal shields. Those cover the radios. One is 2.4 GHz, the other 5.8 GHz. You probably want to connect to the 2.4 GHZ radio. Determine which radio is the 2.4 GHz.

If you can get into the gray housing on the right; the 2.4 GHz antenna will probably be a square, 31 MM on each side.

exactly ... i want to connect to the 2.4 GHZ radio , now where i must solder is the problem , i take some picture of radio chip without cover , if you can mark me where i have to solder i appreciate that

take a look:

1450radio1: 1450radio1 : Free Image Host.

1450antenna1 : 1450antenna1 : Free Image Host.

1450radio2: 1450radio2 : Free Image Host.

1450withoutcover: 1450withoutcover : Free Image Host.

Soldering may not be necessary.

That square block may be a U.FL connector. Snap in antenna connector.

Card with U.FL pigtail

Get your little steel ruler and measure

Search for U.FL on eBay shows 38 pigtails. Plug and play.

the problem is that i live in cuba , i can't buy any pigtail , my only solution is soldering into the card .... please you can guide me ?

thanks

yamil

The U.FL is a connector for 50 ohm cables.

If this is a U.FL connector, it is where you want to solder the cable to the antenna. At the U.FL connector, or anywhere on the lead to the radio.

i try to solder the cable to the U.FL connector ... but nothing happen , please you can mark me in a picture with a dot red where i must solder. remember that i wanna only use the 2.4 radio

thanks for all ..

Don't solder to the U.FL connector.

Solder to the traces the U.FL connector is soldered to. Long skinny trace that runs through the middle is center conductor, big vast traces the body of the U.FL connector attach to is shield.