Diy wifi cantenna for laptop using coax cable

First off, using a Ground post driven into the soil is important. The best ground post procedure is to SLANT a 6 or 8 foot rod into the soil at an angle (not directly down). The angle allows for a greater ground surface and is more effective. If a Ground rod is cut off because it cannot be driven deep into the soil; this defeats the need to ground electronic or other devices.
12G wire is OK for an antenna if 8 or 10 are not available. Copper is best, but aluminum will work. The Grounding bock is attached to the mast, usually near where the antenna if affixed to the mast. Simply drill a small hole into the Mast section using the block as your guide. Using a hex driver and small hex screws, tighten the block to the mast. Good contact is necessary, so tighten all attachments. I suggest getting Rubber Boots or Covers to protect the connectors on the block from corrosion. The reason I attach blocks to the mast is to ground the Mast first and Antenna second. Not a critical feature. You may also use petro-jelly to cover the nuts, bolts, and screws to prevent corrosion or binding.

Three way Switch installation; One cable has two wires plus a bare copper grounding wire, The other cable has three wires plus a ground.
1. Connect the black wire from the two-wire cable to the dark common screw terminal. 2. Connect the red and black wires from the three-wire cable to the traveler screw terminals. 3. Join the white neutral wires together with a wire connector and pigtail the grounding wires to the grounded metal box. 4. When the switch lies at the end of the circuit one cable enters the box. 5. The cable has a black wire, red wire, and white wire, plus a bare copper grounding wire. 6. Connect the black wire to the dark common screw terminal. 7. Connect the white and red wires to the two traveler screw terminals and the bare copper grounding wire to the grounded metal box.
I hope this help.

Is this CABLE with RCA plugs? The best way is to Ohm out the two wires and the orher end od the cable to see if the inner two wires are tied together or it is using double ground connections. The braid wire is for the shield/ ground fro sure.
If you want to use the binding post , you need to feed it from the speaker output terminals of the receiver since the binding posts are made for speaker level signal, not audio line level used for the RCA jack (much lower signal level than the speaker level).

It's a White wire, and a Black wire.

I have no idea why it's named a COAX cable (Coaxial cable) since there are TWO separate wires,
and no shielding on the wires. (Just plastic insulation over the wire)

http://en.wikipedia.org/wiki/Coaxial_cable

Supporting data;

1) http://www.irisvista.com/tech/laptops/Toshiba6100/Toshiba_Satellite_Pro6100_dismantle_2.htm

Step 11. (You can click on the photos to enlarge)
This is on Page 2::

2) Toshiba Satellite Pro 6100 Service Manual, (free)

http://www.tim.id.au/blog/tims-laptop-service-manuals/#toc-toshiba

Go down to the line that starts with Satellite Pro, then go across and click on > 6100.

PDF file. Give at least 30 seconds for the first page to come up, and there may be additional time required for the file to fully download.
Suggest you let it download all the way before looking through it.

[ Took almost 60 seconds for me with a medium speed DSL connection ]

Page 7. (Reduce the view to 100 percent to see the page, then enlarge the page to view the Wireless LAN card wires)

HDMI, Component Cables are recommended for hifg definition viewing. coax has many strands of copper wire with a sheathing around it of aluminum foil. at a distance of a few feet it can easily be a bad crimped connection. but the wires with a bad ground will always cause issues.

you see, coax cables are good for standard broadcasting and normal tv sets,for a quality connectyion they havre specialhmdi cables thjat use bandwiths to send colorts along eatchother like rg and b they will easily transmit clear and stable images. coax uses F-type connectors and are prone to many problems.

but in the spirit of A DIY option. getting a cable line amplifier might just clear up the blurriness by injecting a signal boost in the line. good luck.

here is my suggestion for you a 50 dollar quick fix plug and play.

http://www.amazon.com/Motorola-Signal-Booster-BDA-S4-Amplifier/dp/B000WPGRKK/ref=pd_cp_e_1

go to RADIO SHACK and get a RF MODULATOR ,this will do the trick , good luck , AJ

If you are comfortable doing some small repair work, you might be able to fix this with stuff you have laying around.

All you need is:
1 - 8" piece of coaxial cable with male connector on one end
1 - set of RCA cables (Red/White/Yellow)
1 - coaxial coupler
2 - small wire nuts

electrical tape

Take the back housing off of your TV. You may have to unscrew the small nut holding the threaded connector to the TV. This threaded connector should connect to the motherboard with a male RCA prong that should be soldered to the component on the motherboard. You will need to carefully cut
& remove the old soldering & wiggle the connector off. This is the hardest part, but it WILL come off with a little trying.

Now get your coax cable and strip off about 2" of the black outside housing ONLY. Your solid copper` interior cable should be protected by a small plastic coating which is covered in braided wire. You'll need to be careful not to cut the braiding off. Untangle the braiding down to where your cut stops and try and get it all on one side of the cable so you can twist it all together and make a nice wire. Now strip about an inch off of your interior plastic sheathing to reveal the small solid copper wire on the very inside.

Get your RCA cable and cut about 6" off of the one yellow side. Follow the same process above to get a braided sheathing wire and a solid copper wire. Attach this yellow wire to the coaxial cable by twisting the two braided wires together and the two solid copper wires together. Use your wire nuts & electrical tape to secure your connections making sure none of the wires can touch each other.

Connect the yellow cable's male prong into the component on the motherboard and attach your coaxial coupler to the male end of your coaxial cable. If you saved the small nut from earlier, you can re-attach this new coupler to the housing on your TV. Screw your housing back on the TV and you should be good to go.

I believe the coiled coax may indeed be the problem. To check, try a temporary rerouting of the cable which eliminates the coils. Dave g.

Grounding the antenna bracket is extremely important, if it's bolted into the metal frame or fender it should be OK. The coiled coax cable could be the culprit but that's only a remote possibility.Try running a separate groung wire from the radio mounting bracket (or one of the radio's cover screws if not using a bracket) to the CLOSEST vehicle ground...keep this a short as possible. Your problem is definitely caused by insufficient ground at either end of the coax, with the antenna side being more suspect.

usb not bestto use need new wirless n linksys ok on sale 99 cc this week and n pcmia card to go in labtop up to 1000 ft away 5 bars ok