toa

func ComputeFSK ¶

func ComputeFSK(payloadSize uint, bitrate int) (time.Duration, error)

ComputeFSK computes the time-on-air given a PHY payload size in bytes and a bitrate, Note that this function operates on the PHY payload size and does not add the LoRaWAN header.

func ComputeLoRa ¶

func ComputeLoRa(payloadSize uint, datr string, codr string) (time.Duration, error)

ComputeLoRa computes the time-on-air given a PHY payload size in bytes, a datr identifier and LoRa coding rate identifier. Note that this function operates on the PHY payload size and does not add the LoRaWAN header.

See http://www.semtech.com/images/datasheet/LoraDesignGuide_STD.pdf, page 7