Chengdu Ebyte Electronic Technology Co., Ltd.
E22-230T22S User manual
Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd.
7
Parameter saving
: After the user sets the parameters, the module parameters will be saved, the power will
not be lost, and the module will work according to the set parameters after power-on.
Applicable environment
: 230MHz is free frequency band, users can use it directly without application;
230MHz features certain penetration and diffraction ability, suitable for environment with small data volume,
long transmission distance and easy to be interfered.
2.Specification and parameter
2.1 Limit parameter
Main parameter
Performance
Remark
Min.
Max.
Power supply（V）
0
5.5
Voltage over 5.5V will cause
permanent damage to module
Blocking power（dBm）
-
10
Chances of burn is slim when
modules are used in short distance
Operating temperature（℃）
-40
85
/
2.2 Operating parameter
Main parameter
Performance
Remark
Min.
Typ.
Max.
Operating voltage（V）
2.3
5.0
5.5
≥5.0 V ensures output power
Communication level（V）
3.3
For 5V TTL, it may be at risk of
burning down
Operating temperature（℃）
-40
-
85
Industrial design
Operating frequency（MHz）
220.125
-
236.125
Support ISM band
Power
consum
ption
TX current（mA）
133
Instant power consumption
RX current（mA）
11
Sleep current （μA）
469
Software is shut down
Max Tx power（dBm）
21.5
22.0
23.5
Receiving sensitivity（dBm）
-146
-147
-148
Air data rate is 2.4 kbps
Air data rate（bps）
0.3k
2.4k
15.6k
Controlled via user’s programming
Main parameter
Description
Remark
Distance for reference
7000m
Test condition：clear and open area, antenna gain:
5dBi，antenna height: 2.5m，air data rate: 2.4kbps
