[Radio Wrangler]

The layout style of a circuit and the care taken in high-frequency decoupling, grounding, etc, isn't only a matter of the frequency range you intend to use it over, it also needs to be good enough across the frequency range your devices have any gain... otherwise it could hoot.

If the thingy is going to be manufactured, then you also need some added margin as well so that your design will survive future improvements to the devices used. All those statements: "The Xyzzy semiconductor corporation has a policy of continued product improvement and specifications may be changed without notice" are really dire warnings!

David