On Apr 29, 6:01�pm, K�HB wrote:
MIL-STD 810 related to shock, vibration, salt spray, etc.
It is unrelated to any "performance" criteria.

IOW, it's an environmental specification, not a radio-performance
one.

I followed the links provided by K3FU and noticed that in each
description the rigs were only said to meet the shock and vibration
requirements of MIL-STD 810, not the entire specification. The
description also didn't mention which version(s) were used. IMHO those
are important points.

Meeting the shock and vibration requirements is a matter of mechanical
design. Meeting requirements such as salt spray, temperature and
humidity extremes, high altitude, water immersion, etc., is a
completely different game because each and every component must either
meet the specification or be protected from the environment.
Components that meet the spec are more expensive and fewer, while
protecting from the environment is complex and often impractical for
size/weight/cost reasons

73 de Jim, N2EY