Description:

• Compatible with Arduino Leonardo, Uno, Mega, Due etc.
• Frequency Band: 868 MHZ
• Built-in temperature sensor and low battery indicator
• Excellent blocking immunity

The LoRa/GPS Long Range Transceiver Shield 868 MHz (EU) is an expansion board of LoRa/GPS for use with the arduino. This product is intended for those interested in developing LoRa/GPS solutions

In the Lora part, the Lora/GPS Shield is based on the SX1276/SX1278 transceiver. The transceivers of the Lora/GPS Shield feature the LoRa long range modem that provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. LoRa also provides significant advantages in both blocking and selectivity over conventional modulation techniques, solving the traditional design compromise between range, interference immunity and energy consumption.

Features:

• Low power consumption 
• LoRa Modem
• FSK, GFSK, MSK, GMSK, LoRa and OOK modulation
• Automatic RF Sense and CAD with ultra-fast AFC
• Support DGPS, SBAS (WAAS/EGNOS/MSAS/GAGAN)
• GPS automatic switching between internal patch antenna and external active antenna
• PPS VS. NMEA can be used in time service
• Support SDK command
• Built-in LNA for better sensitivity
• EASY, advanced AGPS technology without external memory
• Always Locate, an intelligent controller of periodic mode
• GPS FLP mode, about 50% power consumption of normal mode
• GPS support short circuit protection and antenna detection

Lora:

• 168 dB maximum link budget.
• +20 dBm - 100 mW constant RF output vs.
• +14 dBm high efficiency PA.
• Programmable bit rate up to 300 kbps.
• High sensitivity: down to -148 dBm.
• Bullet-proof front end: IIP3 = -12.5 dBm.
• Excellent blocking immunity.
• Low RX current of 10.3 mA, 200 nA register retention.
• Fully integrated synthesizer with a resolution of 61 Hz.
• FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
• Built-in bit synchronizer for 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.

GPS:

• Power Acquisition:25mA,Power Tracking:20mA.
• Compliant with GPS, SBAS.
• Programmable bit rate up to 300 kbps.
• Serial Interfaces UART: Adjustable 4800~115200 bps,Default: 9600bps.
• Update rate:1Hz (Default), up to10Hz.
• Protocols:NMEA 0183,PMTK.
• Horizontal Position Accuracy:Autonomous <2.5 m CEP.
• TTFF@-130dBm with EASY:Cold Start <15s,Warm Start <5s,Hot start <1s;TTFF@-130dBm.
• without EASY:Cold Start <35s,Warm Start <30s,Hot Start <1s.
• Timing Accuracy:1PPS out 10ns，Reacquisition Time <1s.
• Velocity Accuracy Without aid <0.1m/s,Acceleration Accuracy Without aid 0.1m/s².
• Sensitivity Acquisition -148dBm，Tracking -165dBm，Reacquisition -160dBm.
• Dynamic Performance Altitude Max.18000m，Maximum Velocity Max.515m/s，Maximum Acceleration 4G.
• L1 Band Receiver(1575.42MHz) Channel 22 (Tracking) /66 (Acquisition).