Modifying a Cheap Portable Cellphone Jammer

Step 4 Reassemble

In this step you just want to reassemble everything. Start by sliding the board back in, then reattach the top and bottom plates with their respective screws (4 each) next remember to place the on/off button back in its socket, and then finally put the antennas back on ( make sure to put the correct antenna on the correct port).

After you have finished reassembling the unit you may find it annoying to continuously need to open the unit up and re-tune whenever you decide you want to block out a different carrier. In that case you can optionally drill out some small adjustment holes with a small 3/16 size drill bit. Make sure to disassemble and remove the circuit board fully before drilling!

Comments

[th3t1nm4n]

Thanks! I might end up using this guide. What were the dimensions of the jammer in the black box, and what are the dimensions without the box or antennas? I might purchase one and would also like to buy a dummy phone to put it inside of.

[niki21]

is anyone know what band or frequency is each cap ?

[christitansfan]

How did you align your holes so perfectly? I like this idea because it makes tuning a lot easier. But if I allegedly had once of these so called jamming units I wouldn't want to mess it up. How did you do yours?

[Blastwavelabs]

I used a ruler to measure from the tip of the antenna down to where each cap was and then I slid the board into the casing and measured out the same distances and marked it with a pencil. then to get it right horizontally i just lined the var caps up with one of the grooves in the casing. Let me know if you need more specifics and ill upload some pics.

[nonesuch]

Dimensioning for the holes would be greatly appreciated.

[Blastwavelabs]

Ok ill try to do a text diagram here... |||||||||||||||||| |||o|o|o|o||| - 2 and 1/8th inches from the top |||||||||||||o||| - 2 and 3/8th inches from the top |||||||||||||o||| - 2 and 5/8th inches from the top |||||||||||||||||| the left-most hole is 3/8ths inches from the left. the second hole in is 5/8ths inches from the left. the third hole in is between 7/8ths and an inch from the left. and the column of three holes on the right is 1 and 1/4th inches from the left. the holes are all 3/16th inch in diameter.

[nonesuch]

Thanks, that is very helpful. btw, are you measuring to the center of the holes, or the edge?

[Blastwavelabs]

Center