External antenna

Discussions about RaZberry - Z-Wave board for Raspberry computer
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paaland
Posts: 16
Joined: 08 Jun 2017 09:24
Location: Norway

External antenna

Post by paaland » 07 Aug 2017 14:09

I wan't to remove the built-in and add an external antenna. But I find the instructions unclear.

Normally an antenna has two leads, one for the core and one for ground. According to instructions I can either use point 4: open hole for pig tail, or point 5 for uFL connector. But point 5 has three soildering points.

What is the correct way to add external antenna?

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petergebruers
Posts: 220
Joined: 26 Jul 2015 17:29

Re: External antenna

Post by petergebruers » 07 Aug 2017 14:14

An ufl socket has three pins, you have to solder the socket to those pins.. Two pads are ground. Use ufl if you already have an antenna with ufl connector crimped on. Ufl looks like a tiny coaxial connector.

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PoltoS
Posts: 4334
Joined: 26 Jan 2011 19:36

Re: External antenna

Post by PoltoS » 11 Aug 2017 23:48

Or just connect a wire to 4. It should be 86 mm (for 868 MHz) or 82 (for 908/915 used in US).

Don't forget to remove the resistance connecting to the PCBA antenna to disable it

e-rook
Posts: 4
Joined: 06 Apr 2017 11:54

Re: External antenna

Post by e-rook » 19 Oct 2017 00:08

I did this exercise recently with piece of wire and helped with range and responsivity

http://e-rook.org/2017/10/17/razberry2- ... extension/

aus_fas
Posts: 3
Joined: 16 Oct 2018 04:06

Re: External antenna

Post by aus_fas » 17 Oct 2018 04:30

Which part or where should I break the PCB, any pictures please ?

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