Chengdu Ebyte Electronic Technology Co,;Ltd E90-DTU (170L30) user manualCopyright ©2012–2019,Chengdu Ebyte Electronic Technology Co,;Ltd 105.3. Transmit power levelMode 1W 500mW 250mW 125mWE90-DTU (170L30) √ √ √ √★ Note: The lower the transmit power, the closer the transmission distance, but the working current won’t be declined inexact proportion, it is recommended to use the maximu m transmit power.5.4. Air data rateModelDefault air datarate Levels Air data rate(bps)bps bpsE90-DTU (170L30) 2.4k 6 0.3、0.6、1.2、2.4、4.8、9.6k★ Note: The higher the air data rate, the faster the transmission rate, the transmission distance is also closer; when therate meets the requirements, the lower air data rate, the better quality.5.5. Current parametersModel Transmitting current mA Standby current mA12V 24V 12V 24VE90-DTU (170L30) 293 146 22 13★ Note: It is recommended to retain more than 50% o f the current marg in when selecting the power supply, which willhelp the data transceiver to work steadily for a long time.5.6. Transceiver Length and Sub-packing ModeModel Buffer Sub-packageE90-DTU (170L30) 512 bytes Automatic subcontracting of 197 bytes to send★ Note:1. If the data received by the station in a single time is larger than the capacity of a single packet, the exce ss datawill be automatically allocated to the second transmission until the completion of transmission.2. The data transceiver cannot receive data which is more than the buffer capacity;