The Model 6502 is an active receiving loop antenna specifically designed to perform commercial emissions standards testing, such as CISPR 16-1-4, and can also be used for any magnetic testing (MIL-STD-461B).

A radio frequency pre-amplifier is built into the base of this loop antenna and provides a 50 Ω output, which is used by a receiver. The pre-amplifier helps this loop antenna produce good sensitivity and almost constant antenna factors when testing for EMC applications.