IDK if this is the right place, anyway: I have a semi-permanent GNSS receiver station. The longer your antenna cable, the more signal loss you have so the electronics should be reasonably close to the antenna, meaning in my case it also need to be outside. I am using a 9x4x4 inch plastic enclosure designed for things like cable interface connections, often mounted on the outside of a house. "Weatherproof Junction Box Heavy Duty Enclosure 9x9x4 Inches UV-Rated Thermoplastic" https://www.amazon.com/dp/B09XSF9VG9
The simple compression foam press-in cable slots on the bottom of the box are really convenient for quick cable install, with no additional work needed to fit cables to any fancy feed-through hardware. In addition to the Pi and GNSS receiver, I added some Adafruit Temp/RH sensors and they report the box interior stays a comfortable 17C and 58% RH on the inside surface, even though it is actually raining, 10 C and 98% RH outside. That difference is from about 5W of heat inside from the Pi and external PoE transformer (using Pi 4 Model B Rev 1.5).
I think the moderate RH shows there is no water running into the case, despite lacking a gasket or waterproof seal. There is a tongue-in-groove or labyrinth interface between the lid lip and the box edge, but the designers knew what they were doing. Water droplets hitting the box just flow down and out the bottom of the edge channel, and the water does not actually come inside. Any interior condensation can also drip out the bottom edge, but with the 24/7 Pi keeping the interior several degrees warmer, this does not seem to happen. Because there are small gaps at the bottom I couldn't guarantee that small ants would never find their way inside, for example, but in general so far it seems pretty good.
The temp/RH sensor shows that the temp and RH changes quickly at a few times in the afternoon (1pm, 3pm) where the sun came out briefly and warmed up the box.
The simple compression foam press-in cable slots on the bottom of the box are really convenient for quick cable install, with no additional work needed to fit cables to any fancy feed-through hardware. In addition to the Pi and GNSS receiver, I added some Adafruit Temp/RH sensors and they report the box interior stays a comfortable 17C and 58% RH on the inside surface, even though it is actually raining, 10 C and 98% RH outside. That difference is from about 5W of heat inside from the Pi and external PoE transformer (using Pi 4 Model B Rev 1.5).
I think the moderate RH shows there is no water running into the case, despite lacking a gasket or waterproof seal. There is a tongue-in-groove or labyrinth interface between the lid lip and the box edge, but the designers knew what they were doing. Water droplets hitting the box just flow down and out the bottom of the edge channel, and the water does not actually come inside. Any interior condensation can also drip out the bottom edge, but with the 24/7 Pi keeping the interior several degrees warmer, this does not seem to happen. Because there are small gaps at the bottom I couldn't guarantee that small ants would never find their way inside, for example, but in general so far it seems pretty good.
The temp/RH sensor shows that the temp and RH changes quickly at a few times in the afternoon (1pm, 3pm) where the sun came out briefly and warmed up the box.
Statistics: Posted by jbeale — Sun Oct 26, 2025 12:50 am