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Author Topic: External Antenna  (Read 2021 times)

jwschull

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External Antenna
« on: November 15, 2015, 10:50:07 PM »
I'm thinking on putting a higher gain antenna (other than the trace antenna).  I know I need a Rf Coax Connector and it looks like I have to close SJ2.  Is that all that's required?  Do I need to lift C5?
« Last Edit: November 15, 2015, 11:02:24 PM by jwschull »

jwschull

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Re: External Antenna
« Reply #1 on: November 20, 2015, 06:49:31 PM »
Been 5 days, no response from tech support.  Lots of views.  I guess I just have to experiment.

kylix

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Re: External Antenna
« Reply #2 on: November 01, 2018, 05:38:17 PM »
Did you manage to connect the external antenna? Any component that you had to remove for disabling the PCB one?

olimex

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Re: External Antenna
« Reply #3 on: November 02, 2018, 08:59:20 AM »
this forum is not support channel, if you have support question please use support@olimex.com

LubOlimex

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Re: External Antenna
« Reply #4 on: November 02, 2018, 01:35:07 PM »
You also need to remove the C5 capacitor. So, in total, you need to close SJ2 jumper and remove C5 capacitor. Soldering SJ2 together - enables the external antenna pads; and removing C5 capacitor disconnects the built-in PCB antenna. Refer to the schematic for better understanding: https://github.com/OLIMEX/ESP8266/blob/master/HARDWARE/MOD-WIFI-ESP8266-DEV/MOD-WiFi-ESP8266-DEV%20revision%20B1/MOD-WiFi-ESP8266-DEV_Rev_B1.pdf

The external antenna should be connected to the "ANT_CON" connector (find the white print on top of the boards).

There are a lot of sources that describe suitable antennas for ESP8266. Make sure to check some of these sources available online.
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