Feature: 1. Band stop filter can block the FM transmission band between 88‑108 MHz, practical and useful. 2. When the attenuation exceeds 50dB, the broadcast frequency band is blocked between 88 ~ 108 MHz. 3. FM filter can be small and convenient, and its quality is guaranteed, you can use it with confidence. 4. Designed for maximum attenuation 88‑108 MHz and the maximum attenuation between the 3dB roll point is 76 MHz and 122 MHz. 5. The insertion loss is less than 0.5 dB between 0 and 1 GHz, and mostly less than 1.5 dB between 1 and 3 GHz. Specification: Item Type: Band stop filter Insertion Loss: Less than 0.5 dB between 0 and 1 GHz, and mostly less than 1.5 dB between 1 and 3 GHz. Broadcast Frequency Band Blocked: When the attenuation exceeds 50dB, the broadcast frequency band is blocked between 88 ~ 108 MHz. Design Function: Designed for maximum attenuation between 88-108 MHz Maximum Attenuation Between 3dB Roll Points: 76 MHz and 122 MHz.. Package List: 1 x Band Stop Filter1 x Connector