Connettore N Duplexer 100W VHF 8 Cavità OMAGGIO sintonizzazione radio ripetizione nuovo 137M-180Mh
This frequency space of this duplexer need to be larger than 3.8mhz, it can not be tuned with split less than that. For example, if the low frequency is 140.00mhz, the high frequency need to be at least 143.8mhz.