If you have got a bluetooth module with antenna from feasycom ,and it is pre-install with antenna ,now you plan to use external antenna .

You may have few questions ,such as : Do I have to change the feasy-board preferences to be able to use the external antenna? Or can I simply attach the external antenna, and it works?

Of course you can simply attach the external antenna ,and it works.

First we want to make a summary about the antenna type and frequency of antenna in the market .

Type of antenna :Ceramic antenna,PCB antenna,external FPC antenna

Frequency of antenna : Single frequency antenna ,dual-frequency antenna.So you have to make sure you have already choose the right antenna for the module.

Few steps about how to let the module work with external antenna.

1. Mount the OR resistance sidewards (The original module with ceramic antenna ,the OR resistance it is stand on end).

2.Remove the original ceramic antenna.

3. Outer shield :GND ,Inner core:signal wire.

Actually ,feasycom module like FSC-BT909 already has two kinds of choices:FSC-BT909 with ceramic antenna and external antenna version.

So if you prefer module with external version ,you can confirm with feasycom sales before you plan to buy.

Feasycom Team