User's Manual
Table Of Contents
- Overview
- Introduction
- Main Features
- Package Contents
- WisGate RAK7248
- Overview
- Interface
- SystemStructure
- RaspberryPi
- LoRa Operating Frequencies
- 2.9.1 Transmitter RF Characteristics
- 2.9.2 Receiver RF Characteristics
- Antenna
- LoRa Antenna
- 3.1.1 Overview
- 3.1.2Antenna Dimension
- 3.1.3Antenna Parameter
- 3.2.1Overview
- 3.2.2GPS Antenna Dimensions
- 3.2.3GPS Environmental Requirements
- 3.2.4GPS Antenna Parameter
- FCCCaution
- ISEDC Warning
- Revision History
- Document Summary
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RAK7248
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Figure 4 | Interfaces
2.3. SystemStructure
The following figure shows the basic concept for LoRaWAN system. RAK7248 WisGate is the
central hardware solution for all LoRa based radio communication. It receives and transmits radio
messages. The processing of radio messages as well as the protocol related tasks is done by
embedded host system (Raspberry Pi). Received and processed radio messages are being sent
to a LoRaWAN server. The concrete segmentation of the protocol related tasks is outside the
scope of this document.
Figure 5 | WisGate System Structure
2.4. RaspberryPi
Processor:Broadcom BCM2711, quad-core Cortex-A72 (ARM v8) 64-bit SoC @
1.5GHz
Memory:2GB LPDDR4
I/O Port:Gigabit Ethernet;2 × USB 3.0 ports;2 × USB 2.0 ports
Connectivity:2.4 GHz and 5.0 GHz IEEE 802.11b/g/n/ac wirelessLAN, Bluetooth, BLE