The Futaba R304SB-E T-FHSS 4-Channel Telemetry 2.4GHz Receiver is only compatible with Futaba T-FHSS telemetry compatible transmitters. The R304SB-E is very similar to the R304SB (FUTL7680) in that they both feature 4-channels, both feature S.Bus2, both are Telemetry enabled and both cost roughly the same price.
However, the two receivers differ in two fundamental areas: this R304SB-E is only intended for electric vehicles and features the benefit of having a non-exposed built-in antenna. The R304SB is compatible with electric/nitro/gas applications and the antenna is fully exposed.
The R304SB-E receiver is recommended for electric powered models only. This is NOT recommended for use with nitro or gas powered models.
Not compatible with the Futaba FHSS, S-FHSS, FASSTest or FASST transmitters.
Built-in Hidden Antenna
Electric Vehicle Use Only
Specifications: Futaba System:T-FHSS S.Bus2:Yes Channels:4 Range:70m (230ft) (at best conditions) Power Requirement Rated Voltage:4.8-7.4V Usable Voltage:3.5-8.4V Size:1.38x0.91x0.33" (35.1x23.2x12.5mm) Weight:0.23oz (6.7g) Number of Ports:5 PWM Output:4 SBUS Ports:0 SBUS2 Ports:1 FASST:No Telemetry:Yes (T-FHSS) S-FHSS:No High Speed:Yes High Voltage:Yes Connector:J (STND) Range:Only for Electric Powered Car Models
The R304SB-E receiver is recommended for electric powered models only. This is NOT compatible with nitro or gas powered models.
Not compatible with the Futaba S-FHSS, FHSS, FASSTest or FASST transmitters.