> .... if a transceiver has a slide switch to open it up to all channels, does it meet FCC certification?
The short answer is "No". Any unauthorised modification voids the Certification.
It should be noted however that there are Marine Radios (e.g. Icom M802) whose channels can be "opened" with a simple key combination. They are legal for hams to use (on the ham bands), but strictly speaking, once re-programmed in this way, would no longer be Marine Certified. Presumably they would not have been submitted for Certification with this "hidden" mode enabled.
Last edited by SparkyToo; 01-18-2011 at 05:49 AM.