# Distance from tempest to Hub? **URL:** \ **Category:** Tempest Owners\ **Created:** [May 14, 2022, 2:39am UTC](https://community.tempest.earth/t/distance-from-tempest-to-hub/17418 "2022-05-14T02:39:48Z")\ **Posts on this page:** 1\ **Showing post:** 3
**Author:** ![iladyman](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/iladyman/32/2305_2.png) [@iladyman](https://community.tempest.earth/u/iladyman)\ **Post date:** [May 15, 2022, 1:23am UTC](https://community.tempest.earth/t/distance-from-tempest-to-hub/17418/3 "2022-05-15T01:23:37Z")
I tested the maximum distances that I could reach between a Tempest and a hub line of site. My method is to mount the Tempest on a high pole on top of a hill. Then I use the hub on a wifi hotspot and move away until I loose reception. Then I return until I get reception in the -90 to -99 rssi range. I then measure that distance on google maps. I achieved around 460m. When I went over 500m I lost reception. I moved the angle of the hub to get best result which is flat on facing the Tempest. I did not rotate the Tempest. Rotating the Tempest might change the results. Yes it works through walls better than wifi does because it is a longer wavelength, lower frequency than wifi. If you have to choose moving your hub to different sides of a wall then I suspect that the wifi connection is likely to suffer more than the Tempest to hub connection. Changing the wifi router antenna angle also helps. For longer distances a parabolic reflector behind the hub or Tempest will also increase the distance. An example here: > [@Sky maximum distance from Hub](https://community.tempest.earth/t/sky-maximum-distance-from-hub/3292/4): > > Hi @dsj David, On my first day of distance tests I managed the Sky 700m away to the hub inside the window. The next day using the Sky on the roof I extended the hub location Northwards from one headland to the next as far as practical to over 7km without requiring any extra antenna. Today I ventured Southwards and was unable to pick up a signal to the bare hub at over 12km. Great so now I had the opportunity to try adding a parabolic reflector to see if I could extend the distance without ch… This has been discussed on a few other topics, so I may find an appropriate topic to move this to…My guess is to where window coatings are discussed which can destroy the signal… edit. This topic description is better than the window coating comment here: > [@Photos of Tempest Installations tempest](https://community.tempest.earth/t/photos-of-tempest-installations/6000/1194): > > Newer energy-savings glass sometimes contains a coating that blocks RF signals… And this topic discusses the similar issue: > [@What are your Sensor to Hub RSSI values?](https://community.tempest.earth/t/what-are-your-sensor-to-hub-rssi-values/17403): > > Just curious if mine are typical. I have tried my Hub in a couple of different windows that have a view to the sensor. The sensor is about 150’ away with no obstructions. I get RSSI values anywhere from -90 to -73 depending on the window and placement of the HUB. It also appears to vary quite a bit, like +/- 6db without touching anything. I took the HUB outside and powered it with an extension cord so it was within 50’ of the sensor in clear line of sight. Even then I got -85. That seems really… cheers Ian 🙂 --- _[View the full topic](https://community.tempest.earth/t/distance-from-tempest-to-hub/17418)._