490MHz RF Transmitter and Receiver JZ881

1.10mW,up to 500m 2.490/160/230/315MHz 3.Various application 4.1200/2400/4800/9600/19200bps 5.Good stability and reliability Low Power Data RF Module for dish ordering

No.	Item	Parameter	Note
1	Modulation mode	FSK
2	Work frequency	490MHZ	160/230/315mhz is possible
3	Transmission power	<10mW
4	Transmitting current	<40mA
5	Receiving current	<35mA
6.	Sleeping current	<10uA
7	Receiving sensitivity	-120dbm(1200bps)
8	Channel amount	8 channels	User setting
9	Working temperature	-20oC+85oC	oC
10	Working humidity	10%~90%(relative humidity without condensation)
11	Antenna impedance:	50Ω
12	Power supply	DC +5V±0.5V
13	Dimension	39.4mm×24mm×8mm
14	Interface	TTL
15	Reliable transmit distance	500m

Features:

1.Power and receiving sensitivity

The transmission power is <10mW, Receiving sensitivity: -120dbm,

Transmitting current<40mA, Receiving current<35mA, sleeping current <10uA.

2. Modulation mode and Frequency 

Modulation mode: FSK, Frequency: 490mhz. Also capable of 160/230/315MHz.

3. High anti- interference and low BER(Bit error Rate)

Based on the FSK modulation mode, it adopts the efficient communication protocol. 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 (BER=10-3/1200bps)>500m, (BER=10-3/1200bps)>800m when the antenna height is greater than 2m .

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- channels

The standard JZ881 configuration provides 8 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 doesn't need to prepare excessive programs

Even for semi duplex communication, the user doesn't need to prepare excessive programs, only receiving/transmitting the data from the interface. JZ881 will complete the other operations automatically, such as transmission/receiving conversion in the air, control, etc.

9. 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.

10. Watchdog monitor

Watchdog monitors the inner function, so it can change the traditional product structure and also improve the reliability of our modules.

490MHz RF Transmitter and Receiver JZ881