W4RT OPF-ICOM-SSB-I 10-pole Collins Mechanical Filter 2.3-kHz for Ico
[OPF-I-SSB-2300]

This excellent SSB filter built by W4RT Electronics contains a factory-fresh 10-pole Collins Mechanical Filter having a 2.3-kHz bandwidth. Tests have demonstrated that a 2-dB improvement in talk power can be realized by using this filter rather than the stock MuRata ceramic filter. "Hearing" is also improved. Available for you to install or to have radioworld install for you.