# \[Modding\] Homey Pro (Model Early 201x) Antenna modification

**URL:** <https://community.homey.app/t/modding-homey-pro-model-early-201x-antenna-modification/2928>\
**Category:** Questions & Help\
**Tags:** homey-pro, modding\
**Created:** [October 17, 2018, 10:43am UTC](https://community.homey.app/t/modding-homey-pro-model-early-201x-antenna-modification/2928 "2018-10-17T10:43:50Z")\
**Posts on this page:** 1\
**Showing post:** 90

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**Author:** ![danone](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/danone/32/115743_2.png) [@danone](https://community.homey.app/u/danone)\
**Post date:** [January 15, 2019, 1:27pm UTC](https://community.homey.app/t/modding-homey-pro-model-early-201x-antenna-modification/2928/90 "2019-01-15T13:27:27Z")

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For those that are about to go ahead with a z-wave antenna mod, here is something I’ve experienced regarding the antenna shield connected to GND.

Initially, I did not connect the antenna shield to GND. You can notice this in the above photos. As per my posts, the z-wave improvement exceeded my expectations.  
Then, I decided to connect it. From here, big problems. The z-wave mesh was changing all the time like every minute! Devices were responding sporadically only. Very weird, perhaps some interference. I definitely picked up the right GND on one point on the PCB, I checked 10 times.  
Then I disconnected it and all back to normal.  
I’ve seen a photo on this forum where someone has connected the shield to the opposite terminal of the original z-wave antenna. Actually that terminal is floating (connected nowhere) only used to hold in place the original z-wave coil antenna. So no point to have it there unless you want to prop the shield wire somewhere, I heat shrink mine.

After reading a bit more about RF antennas, I’ve decided to cut off the original z-wave antenna. I did it in such way that I can anytime solder it back.  
From here, the reception has gone even a bit better. So I won’t solder it back.  
Your mileage might vary… good luck.

P.S. I know a couple of installers that replace the z-wave antenna from the Fibaro HC2 with a high gain antenna. So don’t cry that only Homey has a bad z-wave range.

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