A HEPA filter won't do anything to reduce salt or moisture in the air inside the enclosure. There are a few things you could do to try to ensure the electronics live a while.
Just ensure that there is adequate climate control inside the shack. This means air conditioning in the summer to bring the humidity down, and heating in the winter to stay far above the dewpoint. The dehumidifier is a great idea and when combined with climate control and a plan to minimize air exchange with the outside is probably your best bet. Also, you could buy a can of spray-on conformal coating and just coat the USRP's electronics. This would require masking off connectors and is pretty invasive. If you go this route I'd recommend an acrylic like HumiSeal 1B73. Nick On Mon, Jan 7, 2019 at 2:02 PM Ali Dormiani via USRP-users < usrp-users@lists.ettus.com> wrote: > Hello everyone, > > I have an application in which we will be deploying some N310's on a pier > (right next to the ocean). > > The USRP's will be in a small 10x13x8 ft shack that is reasonably > weatherproofed. I say reasonably because there are gaps in the door-frame > and a small hole for passing coaxial cables out to the antenna mast. > > My current (questionable) plan is to put a strong de-humidifier in the > shack and add HEPA filters to the AC unit that is built into the shack. > > As an added precaution, I want to buy some bulk filter material, cut it > up, and fasten it to the N310's intake and exhaust. > > This leads to obvious heat concerns. It seems that the N310 has a thermal > design power (TDP) of 75W so I think a thin 1 in think HEPA filter would be > ok? (the Nvidia 1050 ti also has a TDP of 75W and has some passively cooled > variants) > > The following link shows all the various types of HEPA filters on the > market. Have not decided which type would be best. > > https://www.airfilterusa.com/commercial-industrial/air-filter-media > > I would like some feedback on how feasible this plan is. Additionally, I > would like to hear of other solutions used by other USRP users.* > > *I've looked into environmental enclosures and those are too bulky for the > shack. We have to share space with other research projects. > > Thank you for your time, > > Ali Dormiani > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >
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