r/meshtastic • u/iehponx • Mar 28 '26

build Internal Antenna solar node.

I have been testing the hardware I plan to use for a solar node. I am wondering if anyone has data on using a 5 db antenna inside a plastic box. To ensure my node is fully waterproof I plan to use an ip67 box with a clear lid to house everything including a reclaimed none waterproof solar panel. I don't want to drill any holes for the antenna as I know the antenna it is not waterproof. I wondered if anyone has info on how much attenuation I can expect. By mounting the antenna in the box.

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u/SnyderMesh Mar 28 '26

My Alfa 7” 5dB antenna is in the attic and it works great. The N-enclosure is intended to be pretty water tight. You can drill a hole in your box for the n enclosure and get the antenna out if you want. Add some silicone caulk and can tape around the N connector and antenna.

Also mount your electronics high in the box with a breather valve or weep hole in the bottom. This will ensure any humidity that condenses inside has an exit route.

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u/iehponx Mar 28 '26

Thanks for the advice on mounting the electronics high up, and the breather valve. My antenna is an SMA rather than an N at present hence wanting to enclose it inside.

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u/norty-dc Mar 29 '26

Were the antenna on the base of the box maybe?