Futaba 4PM PLUS 4-Channel 2.4GHz T-FHSS Telemetry Radio FUT01004414-3
R304SB and R304SB-E are not compatible with SR system. FHSS MINIZ SYSTEM The sensitivity of Futaba car rate gyros can be adjusted from the T4PM. Frequency channel setting is unnecessary: Channel shifting takes place within the 2.4 GHz band automatically.