I’ve successfully modded my Tempest v1 and hub for further range. The process involves desoldering the stock 900mhz antenna for a larger dipole typical of 900 Mhz radio control system (crossfire or R9). I first opened up the hub and replaced the antenna with an sma connection wired to the outside of the case. With this I tested a crossfire immortal T antenna and a large Yagi antenna I bought from Amazon. While I did get better range I still could not get the 3.7 miles range I needed. Then I opened up the Tempest Sky (v1) and soldered in a 900 Mhz whisker dipole. The combination of new rx and tx antenna’s got the range I needed. I also tapped into the uart of the hub so that I could monitor the sky packets and rssi as they were received. Sometimes, even though I would receive regular packets from sky to hub, the hub would not update it’s wind graph or indicate that the sky sensor was back online. I guess this is because the signal was too weak for a bi-directional link or just not enough packets were being received for the hub to consider a good connection. Attached are a few of the photos.
I love this kind of mods. What is the range you can get now? (Personally I don’t need a longer range, but I’m still curious)
Yesterday I got a rapid packet from 8.6 miles distance. But I doubt it would be a strong enough link for the base station to actually consider the sky sensor “UP”.
Interesting seeing the internals, but is this just a science project for the heck of it, or do you really need a $300 unit to have such ridiculous range for some real reason ?
Now if you put a wired ethernet port in there or a 5GHz wifi radio, a LOT of folks would be interested in those mods I’d expect…