Yesterday, I drove in, to Spokane, and took the test to get an amateur radio operator's license. In about a week, I'll have a call sign, and I'll order some 433 MHz telemetry gear. The test was administered by members of the local amateur radio club. They put out a lot of effort to perform this service, administering the test and filing the results with the FCC. The tests have to be graded, and paperwork done by three different people. In addition, there was a test coordinator: all volunteers. They were all very friendly, helpful, and welcoming. My question is: Would it be a good idea to make sure that these people know what I'm doing with the equipment, and why it might be possible for them to pick up that type of transmission once in a while? This seems like a no brainer to me, for a number of reasons; but I've been wrong before.