1.100mW,up to 1km 2.Various frequency upon request 3.RS232/RS485/TTL 4.1200/2400/4800/9600/19200/38400bps 5.Good sensitivity

Technical specification of JZ871:RF Modules

Serial number	Item	Parameter	Note
1	Modulation mode	GFSK
2	Work frequency	433MHZ	868/915MHZ is possible
3	Transmission power	100MW	<10MW
4	Transmitting current	<100mA	35mA
5	Receiving current	<20mA	30mA
6.	Sleeping current	1uA
7	Receiving sensitivity	-121dbm(1200bps)
8	Channel amount	16 channel	User setting
9	Working temperature	-20-+65	°C
10	Working humidity	10%~90%(relative humidity without condensation)
11	Antenna impedance:	50
12	Power supply	+5V
13	Dimension	44mm×27mm×8mm
14	Interface	TTL, RS232, RS485	user can choose
15	Reliable transmit distance	1000m

Features:

1.Power and receiving sensitivity a. Transmission power <1W, TX current<100mA, RX current<20mA,b. Transmission power<10mW, TX current<35mA, RX current<30mA,High receiving sensitivity: -121dbm.2. Modulation mode and Frequency Modulation mode: GFSK, Frequency: 424-448MHZ. Also, 868mhz and 915mhz is possible.3. High anti- interference and low BER(Bit error Rate)Based on the GFSK modulation mode, the high- efficiency forward error correction channel encoding technology is used to enhance datas resistance to both burst interference and random interference and the actual bit error rate of 10-5 ~ 10-6 can be achieved when channel bit error rate is 10-2.4. Long transmission distance Within the range of visibility, the reliable distance is >800m ().5. Transparent data transmission Transparent data interface is offered to suit any standard or nonstandard user protocol. Any false data generated in the air can be filtrated automatically (What has been received is exactly what has been transmitted). The change time between receiving and sending is <10ms. 6. Multi- channelThe standard JZ871 configuration provides 16 channels to meet the multiple communication combination mode of the user.7. High speed wireless communication and Large data buffer zone     When the RF baudrate is bigger than COM baudrate,allowing to transmit unlimited length data at one time, when the RF baudrate is smaller or equal to the COMs,allowing the transmission of 255 Bytes data. 8. Intelligent data control and the user doesnt need to prepare excessive programs Even for semi duplex communication,the user doesnt need to prepare excessive programs, only receiving/transmitting the data from the interface.JZ871 will complete the other operations automatically,such as transmission/receiving conversion in the air,control,etc.9. Low power consumption When transmission power is 1W,The Transmission current<35mA,Receiving current<30mA,sleeping current <1uA. 10. High reliability, small and light Single chip radio - frequency integrated circuit and single chip MCU are used for lessened peripheral circuits,high reliability,and low failure rate. 11. Watchdog monitor Watchdog monitors the inner function,it changes the traditional product structure and also improve the reliability of our modules.

Application Scopes:

* AMR Automatic Meter Reading

 * Wireless alarm and security systems

 * Home automation

 * Low power telemetry

 * Wireless conference voting system;

 * Sports training & competition;

 * Wireless dishes ordering;

 * Wireless POS, PDA wireless smart terminal;

 * Electronic bus station and intelligent traffic;

 * RF transmitter Wireless electronic display screen and queuing machine;

 * Wireless telemetry charging for parking, parking lot;

 * Wireless modem Automobile inspection and four-wheel orientation;

 * Wireless sensor Industrial wireless remote control and air conditioning remote controller;

 * Observation and predication of oil well and hydrological information;   * Point to multi-point wireless network, wireless on-the-spot bus and automatic data collection system 

433/868/915MHz RF Transceiver Modem JZ871