2KM Long Range RF link kits with encoder and decoder

2KM Long Range RF link kits with encoder and decoder

This is a super long range 315mhz RF link kit Comes with VCO , PLL technology, steady Frequency and super anti-jamming ability. You can directly use it with your project like wireless data transport and remote control etc…

Transmitter module :

Special Parameter :

Frequency: 315Mhz

Modulation: ASK

Working Voltage: 4-9VDC

Frequency difference：min±75KHz max±150KHz

Timing resistor：1.5M

Launching power: 50mW(9V)

Working current：＜10mA（9V）

Frequency stability:0.037ppm/℃

Temperature range：-20℃--+85℃

Transmission rate:≤10Kbps

Encoder : PT2262

Receiver Sensibility: -105dbm

Emission Distance: 2000m in open ground

Size : 47.5 x 30 x 10mm

Receiver module :

This is superregeneration Decoder Receiver

Decoder : PT2272

Size: 41x24x6 mm

It can be compatible with transmitter with 2262 chip ，315MHZ ，and 1.5M Timing resistor

Warning: this kit is not suitable for data transfer but remote control. Safe for 2 commands/second

Encoding and Decoding :

The popular link is like this: MCU -> Encoder -> Transmitter ------ Receiver -> Decoder -> MCU

PT2262(Encoder) and PT2272(Decoder) are optional, their existence is to 1)avoid confusing when multiple RF links in range 2) isolate disturbance. You can integrate the encoding and decoding work to the MCUs on both side. Whenever there is no 315Mhz devices around, you may use it as direct cable connection.

It would better choose 7V dc power with stable voltage and good filtering (at least 470UF + 0.1 UF filter capacitance) .

Please be careful that high voltage will easily burned the module.

Then connect the power negative port with gnd, and connect positive port with VCC and 13 pin at the same time, then red led on this module will be light and send high frequency signal. When the power supply voltage is 6V, the emission current is about 180 ma, When the power supply voltage is 7V, the emission current is about 200 ma, When the power supply voltage is 9V, the emission current is about 250 ma.


 
Click to download the manual
 Click to download Datasheet for PT2272 and PT2262