> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# 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.

## How to buy

- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## 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)