Frequency Range And Channels; Air Data Rate; Current Parameters; Transceiver Length And Sub-Packing Mode - Ebyte E90-DTU User Manual

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5.2.

Frequency range and channels

Model
E90-DTU (433L37)
★ Note: In the same area when multiple data transceivers are communicating one to one at the same time, it is
recommended to set the channel spacing between each group of data transceivers at 2MHz or more.

5.3. Air data rate

Model
E90-DTU (433L37)
★ Note: The higher the air data rate, the faster the transmission rate, the transmission distance is also closer; when the
rate meets the requirements, the lower air data rate, the better quality.

5.4. Current parameters

Model
E90-DTU (433L37)
★ Note: It is recommended to retain more than 50% of the current margin when selecting the power supply, which will
help the data transceiver to work steadily for a long time.

5.5. Transceiver Length and Sub-packing Mode

Model
E90-DTU (433L37)
★ Note:
1. If the data received by the station in a single time is larger than the capacity of a single packet, the excess data
will 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;
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Default frequency Frequency range
Hz
433M
Default air data
rate Levels
bps
2.4k
Transmitting current mA
12V
1138
Buffer
512 bytes
Channel
spacing
Hz Hz
410~441M 1M
0.3、1.2、2.4、4.8、9.6、19.2k
6
24V 12V
558
Automatic subcontracting of 197 bytes to send
E90-DTU (433L37) user manual
Channels
32，half duplex
Air data rate(bps)
bps
Standby current mA
24V
50 27
Sub-package
10