Basic Signal Leakage Performance Report, FCC Form 320

Cable television system operators who use frequencies in the bands 108-137 and 225-400 MHz (aeronautical frequencies) are required to file a Cumulative Leakage Index (CLI) derived under 47 CFR 76.611(a)(1) or the results of airspace measurements derived under Section 76.611(a)(2). This filing must include a description of the method by which compliance with basic signal leakage criteria is achieved and the method of calibrating the measurement equipment. This yearly filing is done in accordance with 47 CFR 76.1803 with the use of FCC Form 320.

The latest form for Basic Signal Leakage Performance Report, FCC Form 320 expires 2029-02-28 and can be found here.