“Although NAB’s proposal discusses the use of a software-based EAS encoder/decoder in the context of broadcast station operations, such a solution may be of use to cable EAS participants as well.

Insert this isolator into the cable line and everything gets happier. You can’t do this with ferrite cores around the coax. Fred uses this technique to keep his 160-meter ham rig out of momma’s TV.

According to results recently released by the FCC, 95.5% of EAS participants successfully received the National Periodic Test code used for the test, while 91.8% successfully retransmitted the test.