RF-43UP
www.szrfstar.com V1.3 - Jan., 2020
Shenzhen RF-star Technology Co., Ltd. Page 2 of 34
1 Device Overview
1.1 Description
RF-43UP module is a LoRa spread spectrum module, with operating frequency of 410 MHz ~ 525 MHz, based on the
Semtech SX1278. It is a wireless transceiver module with 3.3 V TTL level output. RF-star LoRa module features with
ultra-long range spread spectrum communication, concentrated power density, high interference immunity ability,
confidentiality, and significantly lower current consumption. The communication interface of RF-43UP is UART.
1.2 Key Features
• LoRa
TM
Modem
• 168 dB maximum link budget
• RF output power: +30 dBm
• +14 dBm high efficiency PA and an integrated PA
• Programmable bit rate up to 300 kbps
• High sensitivity: down to -149 dBm
• Bullet-proof front end: IIP3 = -11 dBm
• Excellent blocking immunity
• Low RX current of 9.9 mA, 200 nA register retention
• Fully integrated synthesizer with a resolution of 61 Hz
• (G)FSK, (G)MSK, LoRa
TM
and OOK modulation
• Built-in bit synchronizer of clock recovery
• Preamble detection
• 127 dB Dynamic Range RSSI
• Automatic RF Sense and CAD with ultra-fast AFC
• Packet engine up to 256 bytes with CRC
• Built-in temperature sensor and low battery indicator
• Power supply: 3.3 V ~ 5.2 V
• Transmission distance: up to 8000 m
• Compact size: 43.0 mm x 24.0 mm
1.3 Applications
• Automated meter reading
• Home and building automation
• Wireless alarm and security systems
• Industrial monitoring and control
• Long range irrigation system
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