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Shield tablet K1 successful WiFi signal modification.

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By eightrac, Member on 25th December 2017, 03:35 AM
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First things first, the WiFi reception on these tablets is garbage. They placed the antenna on the lower left hand corner of the tablet, right where your hands or other obstructions would be.

Besides that, the antenna is very small.

I used a molex adhesive cellular/WiFi antenna and can achieve a 8-12dbm gain in areas that had 76dbm or less reception levels.

Its very easy to do and can be configured back to stock very easily for warranty issues or whatnot.


Edit: moderator, could you move this? I posted from mobile and it seems I posted to the wrong forum.
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25th December 2017, 06:34 PM |#2  
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Quote:
Originally Posted by eightrac

First things first, the WiFi reception on these tablets is garbage. They placed the antenna on the lower left hand corner of the tablet, right where your hands or other obstructions would be.

Besides that, the antenna is very small.

I used a molex adhesive cellular/WiFi antenna and can achieve a 8-12dbm gain in areas that had 76dbm or less reception levels.

Its very easy to do and can be configured back to stock very easily for warranty issues or whatnot.


Edit: moderator, could you move this? I posted from mobile and it seems I posted to the wrong forum.

Can you show a video of how to do it before this thread get moved?
25th December 2017, 10:04 PM |#3  
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The "cellular data" tag would infer that it is a 3g/4g antenna rather than a 2.4Ghz/5Ghz antenna - does it work with both bands only I notice that Molex do offer specific Antennas aimed at both Wifi bands used by the Shield. Thanks.
25th December 2017, 10:46 PM |#4  
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Quote:
Originally Posted by lmulli

The "cellular data" tag would infer that it is a 3g/4g antenna rather than a 2.4Ghz/5Ghz antenna - does it work with both bands only I notice that Molex do offer specific Antennas aimed at both Wifi bands used by the Shield. Thanks.

The print on the antenna doesn't include all of the bands it covers.

https://www.digikey.com/product-deta...970-ND/6005384
28th December 2017, 07:57 PM |#5  
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How well does the back sit with this antenna installed? I'd be tempted to install two of them at right angles to each other.
29th December 2017, 08:55 PM |#6  
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Quote:
Originally Posted by eightrac

First things first, the WiFi reception on these tablets is garbage. They placed the antenna on the lower left hand corner of the tablet, right where your hands or other obstructions would be.

Besides that, the antenna is very small.

I used a molex adhesive cellular/WiFi antenna and can achieve a 8-12dbm gain in areas that had 76dbm or less reception levels.

Its very easy to do and can be configured back to stock very easily for warranty issues or whatnot.


Edit: moderator, could you move this? I posted from mobile and it seems I posted to the wrong forum.

Can you please point out which one is the best? https://eu.mouser.com/search/refine....&Ntt=178376642
Tx,
Roger
1st January 2018, 04:11 AM |#7  
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Quote:
Originally Posted by neosenshi

How well does the back sit with this antenna installed? I'd be tempted to install two of them at right angles to each other.

There's only one coax plug, so two antennae may be an issue. It does not add anything to the back, as there's just enough clearance under the back cover for it to fit.
1st January 2018, 04:12 AM |#8  
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Quote:
Originally Posted by TheKicKer69

Can you please point out which one is the best? https://eu.mouser.com/search/refine....&Ntt=178376642
Tx,
Roger

Mine is the 100mm unit.
2nd January 2018, 09:29 PM |#9  
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Does this really work? Surprised nobody thought of this before. This is my biggest beef with this device. 2 bars or worse. Can't even keep a You Tube stream from glitching out. Gonna try it!
4th January 2018, 04:14 AM |#10  
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Quote:
Originally Posted by SoulRFlair

Does this really work? Surprised nobody thought of this before. This is my biggest beef with this device. 2 bars or worse. Can't even keep a You Tube stream from glitching out. Gonna try it!

Works great for me. Gained -8dbm in an area that I could only get 92dbm before.
4th January 2018, 06:51 PM |#11  
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Quote:
Originally Posted by eightrac

First things first, the WiFi reception on these tablets is garbage.

So I did this last night. I installed the same antennae as you did. I ordered the 100mm - it was quite a bit longer than the one in your picture but I routed the lead next to the battery which was fine.
I do think it helped - perhaps not the miracle cure I was hoping for. I seem to not be experiencing the same frequency of freezes and glitches when gamestreaming - however I did still see a couple of instances of the low signal indicator with 2 bars when streaming. Streaming from You Tube is still nowhere near as smooth as my other devices, a shield portable, kindle tablets and my Iphone or Ipad - more buffering and pauses.
ultimately, I do recommend the mod as it is easy, cheap and I think an improvement over the stock antennae..
Thanks for posting your experiment!
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