The digital multimeter, DMM, is one of the most common items of test equipment used in the electronics industry today. While there are many other items of test equipment that are available, the multimeter is able to provide excellent readings of the basic measurements of amps, volts and ohms.
Here are the basics of the rules, which will apply to drones weighing fewer than 55 pounds: pilots will have to pass a knowledge test (but not a practical test) to get a newly developed drone operator license and will have to be vetted by the TSA.
The rule applies to owners of drones weighing between half a pound and 55 pounds, and only American citizens will be allowed to register. The F.A.A. said it would introduce the website for registration, faa.gov/uas/registration, on Dec. 21; registering will be free for the first 30 days. After that period, the fee for each individual drone user will be $5 for a three-year certificate of registration.