Straight Rubber Antenna SW433-ZT100 for Wireless Transceiver RF Module 433MHz Straight Rod Antenna 433MHz Rubber Antenna 433

Straight Rubber Antenna SW433-ZT100 for Wireless Transceiver RF Module 433MHz Straight Rod Antenna 433MHz Rubber Antenna 433

Features:

*Frequency range:433 MHz (+ / -5)
*VSWR: <= 1.5
*Input impedance: 50 Ω
*Maximum power: 10 W
*Gain: 3.0 dBi   
*Polarization: vertical polarization 
*Weight: 10 g
*Height:100 mm 
*Lead wire: no 
*Antenna color: black
*Interface form: SMA(built-in)
*Holster, biggest diameter Φ 11 mm

 a) Why module can not communicate properly?

1) Check the band, channel, rate, NET ID is set to the same;
2) The power connection error, the module is not working;
3) Module is enabled (CS high);
4) The antenna connection is not correct;
5) Module is damaged.

b) Why far transmission distance?
1) Power supply ripple is too large;
2) The antenna types do not match, or not properly installed;
3) The surrounding environment is harsh, strong interference sources;
4) Surrounding co-channel interference;

c) Why is receiving data correctly?
1) Improper parameter settings;
2) Module data interface is bad.