[DIY] Wifi modem and out door antenna

[Pudgestool]

i have a old modem binatone dt 850w and found a outdoor unit antenna rusting from a old shop. 
i have marked the modem antenna wire , i tried to soldered the wire to the outdoor unit .
but still i felt i am doing some thing wrong. can some one help >? 

[mahyar]

i don't want to dive into the physics of such thing #yolo it and see if it works. proper work needs a LOT of calculations

[Kilrah]

Can't really see what you did, but it appears you didn't connect the ground to the antenna.

[Pudgestool]

Just now, Kilrah said:

Can't really see what you did, but it appears you didn't connect the ground to the antenna.

i just soldered the wire from modem to the steel board in antenna. dont know how to connect ground !! there is only one wire in modem i dont think there is a ground wire in it.

 

[EDIT] i found the ground wire in modem. due to old and rust the wire actually gone ! so i am about to replace that in few hours.

[Kilrah]

The ground is the sheath of the coax cable. You have to remove the shrink tubing at the end to expose some and do like on the modem side, soldering the ground to the appropriate location on the antenna.

Blue = signal, pink = gnd.

 

[Pudgestool]

Just now, Kilrah said:

The ground is the sheath of the coax cable. You have to remove the shrink tubing at the end to expose some and do like on the modem side, soldering the ground to the appropriate location on the antenna.

Blue = signal, pink = gnd.

 

thanks but i need to know will work ? i mean the signal range/quality will improve? i remember the stock antenna with modem was small. i think its 5dbi omni or less 

[Kilrah]

Maybe, maybe not. We have no idea what the antenna you're attaching is, and it will depend on the quality of your wiring job.