Ebyte E43-900T13S3 User Manual page 17

Chengdu Ebyte Electronic Technology Co., Ltd.
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5，4，3
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2，
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1，0
5，4，3，2，1，0 Communication channel
4 CHAN
Communication frequency （ 855MHz+ CHAN * 0.3M）
Default 2EH:868.8MHz
7，
MODBUS）
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6，5，4，3，2 reserved bit，It's recommend to write
5 OPTION
0
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1, 0
For example: The meaning of No.3 "SPED" byte：
The binary bit of the
byte
The specific value
(user configures)
Meaning
Corresponding
hexadecimal
Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co., Ltd.
TTL serial port rate（bps）
000：serial port baud rate is 1200
001：serial port baud rate is 2400
010：serial port baud rate is 4800
011： serial port baud rate is 9600 （default）
100：serial port baud rate is 19200
101：serial port baud rate is 38400
110：serial port baud rate is 57600
111：serial port baud rate is 115200
reserved bit，It's recommend to write 0
Wireless air data rate（bps）
00：air data rate is 1.2k（default）
01：air data rate is 4.8k
10：air data rate is 9.6k
Fixed transmission enable bit（similar to
0： Transparent transmission mode（default）
1： Fixed transmission mode
transmitting power（Approximate value）
00： 13dBm（default）
01： 10dBm
10： 7dBm
11： 3dBm
7 6 5
0 0 0
reserved bit UART baud rate is 9600
1
between communication parties
The UART baud rate has nothing

to do with wireless transmission
parameters & won't affect the
wireless transmit / receive
features.
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The lower the air data rate, the

farther the distance, the stronger
the anti-interference performance
and the longer the transmission
time.
The wireless transmission rate of

both sides must be same.
00H-FFH，

Correspondnig to 855.0 ~

931.5MHz
When It's 1, the first 3 bytes of

each user data frame as the
channel, high and low addresses.
Change its own address and
channel when transmitting, and
restore the original settings after
completion.
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The external power supply must

provide more than 100mA current
output capability. And ensure that
the power supply ripple is less
than 100mV.
It is not recommended to use a

smaller power transmission, and
its power utilization efficiency is
not high.
4 3 2
1 1 0
E43-900T13S3 User manual
1 0
0 0
Air data rate is 1.2k
8
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