From Spektrum...

Spektrum’s SR3300T 3-channel DSM® receiver features integrated telemetry that is compatible using Spektrum’s handheld telemetry unit (not included) or telemetry can be displayed on-screen using the Spektrum telemetry-compatible transmitters. Telemetry features include voltage, temperature, rpm and laps (handheld only). The SR3300T is compatible with all Spektrum surface transmitters and operates in DSM mode.


Try again, you must not be getting a proper bind.