external antenna

Discussions about RaZberry - Z-Wave board for Raspberry computer
enbemokel
Posts: 237
Joined: 08 Aug 2016 17:36

Re: external antenna

Post by enbemokel » 30 Jan 2019 18:04

Please don´t forget the loss of connections or cable lengt to the antenna. I assume that a 3 Dbi antenna has less benefit
then using the default antenna......
A test wiht 34,54 cm would be nice ;-)
Thanks ronie with the detailed description, will check at home my soldering

Arek
Posts: 17
Joined: 28 Dec 2018 22:35

Re: external antenna

Post by Arek » 30 Jan 2019 22:00

enbemokel wrote:
30 Jan 2019 18:04
I assume that a 3 Dbi antenna has less benefit
then using the default antenna......
from my experience I need to say no :) how I wrote before, better timing, more device in the range (two devices now is connected direct to Razberry), chart on the background noise is more "flat"

enbemokel
Posts: 237
Joined: 08 Aug 2016 17:36

Re: external antenna

Post by enbemokel » 31 Jan 2019 17:11

Thats good to know for others. Thanks

pierre2302
Posts: 132
Joined: 15 Oct 2013 19:04

Re: external antenna

Post by pierre2302 » 31 Jan 2019 20:38

The map below is also a European map.

Official in the sense that there is no razberry.z-wave.me written on the blue card.

And I would say that at first glance it's not just the color that changes !! :shock: :geek:
Attachments
carte-d-extension-razberry-v2-z-waveme-kubii.jpg
carte-d-extension-razberry-v2-z-waveme-kubii.jpg (56.38 KiB) Viewed 286 times
" Raspi 2 (RaZberry) / Raspi B (Razberry) " With OpenRemote Free 2.2.0_TTS-Email-Serial and Z-Way

Arek
Posts: 17
Joined: 28 Dec 2018 22:35

Re: external antenna

Post by Arek » 07 Mar 2019 18:16

Hello :)
I broke it :(
I was too greedy and I got other bigger antenna :> but new antenna was male, old female so I did exchange pigtail with suitable socket.
How in life - size doesn't matter - bigger antenna have better "noise" but less device in range so I get back to old antenna. I exchanged pigtail, screw small antenna and... channel 1 - 0, channnel 2 - 0! it dies. Again back to bigger antenna - and -94db/-91db, back to small one 0db/0db. Is it possible that I damaged antenna/pigtail? or something else did happen?

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PoltoS
Posts: 4571
Joined: 26 Jan 2011 19:36

Re: external antenna

Post by PoltoS » 08 Mar 2019 00:31

0 might mean too low. So may be it is ok

Arek
Posts: 17
Joined: 28 Dec 2018 22:35

Re: external antenna

Post by Arek » 08 Mar 2019 14:03

hehe
Image

Could I damage something on board? It's strange that I've only demounted small antenna and pigtail and it looks like something get broke after remounted.

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PoltoS
Posts: 4571
Joined: 26 Jan 2011 19:36

Re: external antenna

Post by PoltoS » 08 Mar 2019 14:18

If you have overheated the pin or got an ESD strike, you could damage it

Arek
Posts: 17
Joined: 28 Dec 2018 22:35

Re: external antenna

Post by Arek » 08 Mar 2019 20:13

how I wrote - I just plug out pigtail and "small" antenna (I have u.fl socket soldered before). I've connected new "bigger" antenna and pigtail. "Noises" was better but less device in the range so I want to get back to "small" one. Plug in pigtail and antenna and get "0" on both channels. I thought "F***, I've burned something, or ESD strike" but I again plug in "bigger" antenna and it is working (with less devices in range then small antenna) AND this very strange for me because it is only a 8cm of wire (pigtail, I've checked crossing) and antenna which was only plug out and plug in and now it is dead. I didn't put antenna in microwave or something, it was just laying for 15 minutes on table :D
So my question is: if it would be something wrong with RaZberry board it rather wouldn't working at all and not only with one antenna?
I did order new pigtail and small antenna...

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