New antenna for mk802iv

[neoal]

Re: New antenna for mk802iv

I need help :'(

Well from what i see with the last soldering that you have done, you shorted the antenna with the ground. ill try to draw a ''how to do it'' on your pictures. just let me find a drawing app and ill post back.


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[neoal]

Re: New antenna for mk802iv

I need help :'(

Well i just made a simple explanation on the picture, hope that it helps you out.
If you are good with the soldering than you can remove the original antenna cable at all and solder the ending point of the pigtail to the board.

here is the pic:




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[ElHartoshke]

Well i just made a simple explanation on the picture, hope that it helps you out.
If you are good with the soldering than you can remove the original antenna cable at all and solder the ending point of the pigtail to the board.

here is the pic:




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Thank you so much for this! This was really helpful! I really appreciate it!
I removed the original antenna and it's soldering completely.

I soldered the new wires like you said.

The result, really good speed and nice reception!

BUT only without the antenna! This is really weird, the pigtail itself provides good speed and nice reception,
But the second I connect the antenna to the pigtail everything is really bad...

Why could this be?

[neoal]

Re: New antenna for mk802iv

Thank you so much for this! This was really helpful! I really appreciate it!
I removed the original antenna and it's soldering completely.

I soldered the new wires like you said.

The result, really good speed and nice reception!

BUT only without the antenna! This is really weird, the pigtail itself provides good speed and nice reception,
But the second I connect the antenna to the pigtail everything is really bad...

Why could this be?

i really don`t know what to say about this, maybe the pigtail or the antenna is faulty. try with another antenna. or maybe the pigtail has a short somwhere in the cable and it works as an antenna itself. i think for you now its just: try and see.

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[ElHartoshke]

i really don`t know what to say about this, maybe the pigtail or the antenna is faulty. try with another antenna. or maybe the pigtail has a short somwhere in the cable and it works as an antenna itself. i think for you now its just: try and see.

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Is there such a thing as a recieving antenna and a transmitting antenna?
maybe i plugged the wrong one,

I have an old D-Link router with 2 antenna, tried them both,
with the pigtail alone i get 20mb on speedtest, with both antennas i tried i get 0.5mb...

also i have noticed that when the RSA connector touches my heatsink mod it get much better speed...
It also "electrocutes" me when I touch it (:P), so the current is definitely getting to the RSA connector itself...

[neoal]

Re: New antenna for mk802iv

Is there such a thing as a recieving antenna and a transmitting antenna?
maybe i plugged the wrong one,

I have an old D-Link router with 2 antenna, tried them both,
with the pigtail alone i get 20mb on speedtest, with both antennas i tried i get 0.5mb...

also i have noticed that when the RSA connector touches my heatsink mod it get much better speed...
It also "electrocutes" me when I touch it (:P), so the current is definitely getting to the RSA connector itself...

normally it shouldn't "electrocute" you, so i guess the pigtail is faulty, or you shorted somewhere the wires, but if the speed is good and stable even with just the pigtail and you are happy with it, i guess you can keep it that way
cheers

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[mechaone]

The male and female SMA connectors are a matched pair, correct? One has a center pin that slides inside the other when threaded? I understand that the thread will be a match, but without the continuity of the mid conductor there won't be effective signal transmission.
If you choose to forgo use of the antenna itself, be sure to insulate the SMA with tape or shrink tube to prevent shorts or static elec shocks.

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[jas0npc]

nice thread, i am in need of help mk02iv with new wifi chip, however i managed to pull the aerial cable and solder pad away from the board, any idea where i can now solder the aerial to?

[neoal]

Re: New antenna for mk802iv

nice thread, i am in need of help mk02iv with new wifi chip, however i managed to pull the aerial cable and solder pad away from the board, any idea where i can now solder the aerial to?

guess some pics of the board would help, and by the way what do you mean with aerial?????

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[mechaone]

Re: New antenna for mk802iv

I think "aerial" refers to the antenna lead.
If you've torn the pad clear off the PCB, it's game-over for integrated wifi. If the pad still has continuity with the trace leading to it, you can still carefully solder the antenna cable on, then lock it in place with a dab of hot melt glue.
Good luck!

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[jas0npc]

I think "aerial" refers to the antenna lead.
If you've torn the pad clear off the PCB, it's game-over for integrated wifi. If the pad still has continuity with the trace leading to it, you can still carefully solder the antenna cable on, then lock it in place with a dab of hot melt glue.
Good luck!

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That is what I have done, thank you