# 2pcs Wireless RF Transceiver 431-470MHz

**Type:** Product page · **SKU:** 017-RMB-CM12111 · **Brand:** [Sure Electronics](https://core-electronics.com.au/brands/sure-electronics-australia)
**Page:** https://core-electronics.com.au/2pcs-wireless-rf-transceiver-431-470mhz.html ([markdown](https://core-electronics.com.au/2pcs-wireless-rf-transceiver-431-470mhz.html.md))

## Retired product

This product is retired and no longer available for purchase. Search the catalogue for an alternative.

## Description

This package consists of two half-duplex wireless data transceiver modules and each module is highly integrated with an MCU and a powerful RF chip. These modules boast features such as selectable channels, ultra long transmission distance (1000 meters) and abundant interface options (UART/TTL,RS-485&RS-232). The software application ("RF-Magic") is offered for free so that users can modify the settings of the module. This is a popular module thanks to its ease of use, slim size and wide power supply range.

**Features:**

- Size (only PCB) : 39.60mm(L) X 19.30mm(W) X 4.32mm(H) ±0.2mm
- Ultra long transmission distance: 800-1000 meters @1200bps
- Working frequency: 431-478Mhz (1KHz step)
- +3.3-5.5V wide power supply range
- -112dBm(9600bps) high sensitivity
- Over 100 channels
- GFSK modulation
- Highly efficient cyclic interleaving error correction encoding
- Flexible software program option settings
- Selectable RFID index
- UART/TTL, RS-485 & RS-232
- Large data buffer: 512bytes
- Suitable for massive data transfer
- Built-in watchdog ensures long-term operation
 
**Specs**:

 | Parameter | Value |
|---|---|
| Power Supply | 3.3 – 5.5 (± 50mV ripples) |
| Frequency Range | 431MHz to 478MHz (1KHz frequency step) |
| Frequency Interleaving | 200KHz |
| Output Power | 20mW ( 10 levels adjustable) |
| Receiving Sensitivity | -117dBm@1200bps |
| airborne speed | 1200 – 9600bps |
| Speed In Port | 1200 – 9600bps |
| Parity Check | 8E1/8N1/801 |
| Operating Humidity | 10% - 90% |
| Operating Temperature | -20℃ - 70℃ |
| Transmission Mode Current | ≦35mA@10mW |
| Receiving Mode Current | ≦28mA |
| Sleep current | ≦5uA |
| Transmission Distance | 800-1000m (visible range in open area) |

**Pinout**:

 | Pins | Definition | Description |
|---|---|---|
| 1 | GND | 0V |
| 2 | VCC | 3.3V-5.5V |
| 3 | EN | POWER ENABLE(≧1.6V) or SUSPENDED ENABLE(≦0.5V Hibernation) |
| 4 | RXD | UART input, TTL |
| 5 | TXD | UART output, TTL |
| 6 | B/RX | RS485- or RS232 RX |
| 7 | A/TX | RS485+ or RS232 TX |

**Dimensions:**

![](https://core-electronics.com.au/media/remote_images/https://core-electronics.com.au/media/_SgPERd.)

**Settings of "RF-Magic (Ver:4.2)"**:

 | Settings | Options | Default |
|---|---|---|
| Series Rate | 1200,2400,4800,9600bps | 9600bps |
| Series Parity | Disable, Even parity, Odd parity | Disable |
| Types of Series | RS485, RS232 | RS485 |
| RFID Disable | Disable, Enable | Disable |
| RFID Index | 0-65536 (16 bit) | 12345 |
| RF Frequency | 431-478MHz (1kHz step, accuracy ±100Hz) | 434MHz |
| Series rate | 1200,2400,4800,9600bps | 9600bps |
| Freq Deviation | 5.4, 10.8, 21.6, 43.2, 86.4KHz | 21.6 KHz |
| RF Power | 1-10 (10 indicates 20mW) | 10 (20mW) |

**Package Contents:**

- Wireless RF Transceiver 431-478MHz GFSK Data Transfer ×2
- Omni Antenna ×2
 
**Downloads:**

- Datasheet

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/r/m/rmbcm12111.jpg)