Im currently looking for thick metal enclosure that would act like a Faradays cage. If you know one tell me
Yes thats how I thought but again Im thinking somehow that an LMR-400 cable can act like a faradays cage since it has enough thickness but not sure though. But I dont know any solution for the antennas as you said.
Grounding the whole equipment including the R5H s may be another safe bet to take.
The site will have more than 100 customers and I dont want to deal with 100 angry customers.