Introduce

   RF-TTL-SMA is our latest 100mW wireless transmission module. It working in 425-450.5MHz band and using serial port to send or receive data. Its advantage is that centralized power density, transmission distance(Its transmission distances can reach 2000 meters.) and strong anti-jamming capability. Especially the ability to penetrate diffraction, it is more strong than other band.

RF-TTL-SMA having the FEC forward error correction algorithm, the coding efficiency is higher and the error correction capability is strong. When in the case of burst interference, it can take the initiative to correct the interference packets , that greatly improving the reliability and transmission distance. The module also having data encryption and compression function. When transmission data in the air, it is random and unsafe. But after the module rigorous encryption and decryption algorithm, the data interception becomes meaningless and improves transport security.

The module has four operating modes , and can freely switch at runtime , in the power saving mode , current consumption is only ten of uA, it is very suitable for ultra-low- power applications.

 

Parametric Description

Num	Parametric Name	Detailed Description
1	Module size	20* 36mm
2	Interface	1*7*2.54mm, you can use the universal plate and DuPont line
3	Supply voltage	1.9-3.6V DC
4	Communication voltage	0.7VDD-5.2VDC, VDD is the supply voltage of module
5	Measured distance	2000m@1K
6	Maximum power	20dbm
7	Air Rate	8 adjustable rating
8	Dormancy Current	About 1.7uA（M1 =1， M0 = 1）
9	Power Level	8 adjustable rating
10	Transmitting current	89mA@100mW output
11	Receiving current	14.5mA@Mode 0 and 1. The lowest is about 20uA@Mode 2 + 2s wake up
12	Antenna	SMA external antenna
13	Communication Interface	UART serial port, 8N1/8E1/8O1, from 1200 to 115200 a total of 8 kinds baud rate
14	Transmitting length	Single data packet is 256 bytes
15	Receiving length	Single data packet is 256 bytes
16	RSSI Support	Built-in intelligent processing
17	Reception sensitivity	-119dbm@1Kbps
18	Work temperature	-30 - +85℃
19	Work humidity	Relative humidity :10% - 90%
20	Storage temperature	-40 - +125℃
21	Working frequency	425MHz – 450.5MHZ, 100KHz stepper

 

Module Features

   Transmission distance of 2000 meters

   Multiple baud

   -119dBm Receiver sensitivity

   Ultra-low -power receive

   Four operation modes

   Sleep current is only 1.7uA

   Air wake-up function

   Double ring buffer 256Bytes

   Built-in watchdog , never crash

   Software FEC correction , data compression

   Support voltage reading function

   Frequency 425 - 450.5M, 256 channels

   Efficient encryption algorithms , error correction function

Application

   Wireless meter reading

   Wireless Sensor

   Smart Home

   Intelligent Robot

   Consumer Electronics

   Street lighting control

   High-voltage monitoring

   Environmental Engineering

   Automated data collection

   Remote control and monitoring

   Other wireless transmission applications

 

Notice:

   1.  Avoid body touch the electronic components.

   2.  Please ensure that the power supply has a smaller ripple , and must avoid frequent significant jitter.

   3.  Antenna mounting structure has a greater impact on module performance , please ensure the antenna exposed.

   4.  Avoid harmonic interference from other wireless devices bands

   5.  Please make the RF module stay away from the crystal.