Hubbell Radio Control Systems use the latest synthesizer technology and GFSK modulation. Each system also incorporates Listen Before Talk (LBT) transmission before communication is established. The radio system operates on a non-licensed frequency band of 433.10 - 434.75 MHz or 915 MHz. Typical operating range is up to 300 ft. line of sight. Models include:
31.720 Compact Mid-Size Transmitter - CMSTX
31.730 Handheld Two-Speed Pendant Transmitter - PTX