Making CDMA / GSM / 3G Antenna

Your Signal modem / mobile broadband is weak? try this way, with a Antenna GSM and CDMA 1900 Mhz might be one alternative solution to for those who want to make your own and require only simple equipment and low cost.

We know that the speed internet access of cellular (mobile broadband) both GSM and CDMA are determined by the received signal strength. If you have problems with signal strength below the required equipment to make the antenna GSM and CDMA 1900 MHz:

• Cutting pliers
• Bor
• Cutter knife
• Tang shark
• Solder + lead

* RG58 cable (cable Tv antenna can) according to the length of each

* A tin cans, tin cans may be powdered milk. See details in the picture.

* Jack BNC male + female (can also jack type)

* TV antenna jack Male + female

* PCB blank size 4X8 cm (for the induction of the antenna on Mobile phone)

* 0,8 mm copper wire (you also can use from large copper)

After the above equipment has been prepared following all steps of manufacture:

1. Clean the paint on the outside of the can

will be like this

2. Cut the copper wire as long as 30,716 mm copper wire and solder it to the end of the BNC jack female

3. Punch a hole the size of cans for female BNC jack. Hole distance of 38,401 mm behind the cans. and attach the female BNC Jack that have soldered with copper wire into the hole cans. So be like this

if you look next

4. Create an antenna from the PCB Induction plain created by the flow path as shown below with a box cutter knife. Forming a groove / line up and down. Female jack solder to the PCB antenna television, the middle path to ground while the edge of the PCB to + antenna connected to the copper wire on the can antenna. Note the center and edge lines are not related.

5. Connect the antenna cable end to male BNC jack

6. Connect the other end of the antenna cable to the TV antenna jack male

7. Replace Jack BNC male to BNC female while the male TV antenna to jack female TV antenna on PC antenna induction. Now, antenna ready to be installed outside using the pole. And point the antenna to the nearest BTS provider.

8. Manufacture and installation of the antenna is complete. After that Put your mobile phone or modem is above induction PCB antenna and see the signal change obtained, if the signal obtained was a kid means the antenna is not correct, looking up at the antenna to get better.

Note: If in your area without the antenna has a signal but only a few bars on the antenna does not need to install an antenna outside Put enough on the computer and find a good antenna direction to get additional bar signal, and your mobile phone / modem is ready for use with a stable signal.

Antenna specifications:

• Working on the line frequency: 1464.402Mhz (low frequency) ut to 1912.917Mhz (upper frequency)
• D = 120 mm (diameter cans)
• Lg / 4 = 38,401 mm (distance to the back of copper wire tin)
• Lo / 4 = 30,716 mm (high copper wire)
• 3/4Lg = 153,603 mm (length tin)