Chengdu Ebyte Electronic Technology Co., Ltd
E21-400G37 User Manual
Copyright ©2012–2019, hengdu Ebyte Electronic Technology Co., Ltd
11
Chapter 9 Antenna Guide
9.1 Antenna recommendation
Antennas play an important role in the communication process, and poor quality antennas often have a great impact on
the communication system. Therefore, we recommend some antennas to be used as antennas supporting our wireless
modules with excellent performance and reasonable price.
Model
Type
Frequency
Gain
Size
Feeder
Interface
Feature
MHz
dBi
cm
cm
TX433-XP-200
Sucker
400~470
4
1.9
200
SMA-J
Ultra short straight,
omnidirectional antenna
TX433-JKD-20
Rubber
400~470
4
2.0
/
SMA-J
Bendable rubber rod,
omnidirectional antenna
Sucker
850~900
3.5
2.9
100
SMA-J
Small sucker antenna,
cost-effective
TX868-JKD-20
Rubber
850~900
3.0
2.0
/
SMA-J
Bendable rubber rod,
omnidirectional antenna
Sucker
900~931
3.5
2.6
100
SMA-J
Small sucker antenna,
cost-effective
TX868-JKS-20
Rubber
900~931
3.0
2.1
/
SMA-J
Bendable rubber rod,
omnidirectional antenna