Introduction LoRa Parameter Region/Country Specific 900MHz ISM Freq Band North America (902-928MHz)Europe (863-870MHz) R Data Rate US(902-928): 980bps – 21900bpsEU(863-870): 250bps – 11000bps Bandwidth US(902-928): 125KHz, 500KHzEU(863-870): 125KHz, 250KHz Tx Power US(902-928): 2dBm – 28dBmEU(863-870): 2dBm – 16dBm EIRP SF Spreading Factor 7,8,…..12 Number Symbols 2^SF 128(2^7),……4096(2*12) Fig.1 LoRa Specifications (LoRa Alliance Ref.1) LoRa (Long… Continue reading LoRa Scicos Simulation_b
Category: Electronics
Electronics: Hardware, Simulation Software, Microcontrollers
LoRa 915MHz Transceiver Packet Test
Introduction LoRa Parameter Region/Country Specific 900MHz ISM Freq Band North America (902-928MHz)Europe (863-870MHz) R Data Rate US(902-928): 980bps – 21900bpsEU(863-870): 250bps – 11000bps Bandwidth US(902-928): 125KHz, 500KHzEU(863-870): 125KHz, 250KHz Tx Power US(902-928): 2dBm – 28dBmEU(863-870): 2dBm – 16dBm EIRP SF Spreading Factor 7,8,…..12 Number Symbols 2^SF 128(2^7),……4096(2*12) Fig.1 LoRa Specifications (LoRa Alliance) LoRa (Long Range)… Continue reading LoRa 915MHz Transceiver Packet Test
LoRa Scicos Simulation_a
Introduction LoRa Parameter Region/Country Specific 900MHz ISM Freq Band North America (902-928MHz)Europe (863-870MHz) R Data Rate US(902-928): 980bps – 21900bpsEU(863-870): 250bps – 11000bps Bandwidth US(902-928): 125KHz, 500KHzEU(863-870): 125KHz, 250KHz Tx Power US(902-928): 2dBm – 28dBmEU(863-870): 2dBm – 16dBm EIRP SF Spreading Factor 7,8,…..12 Number Symbols 2^SF 128(2^7),……4096(2*12) Fig.1 LoRa Specifications (LoRa Alliance Ref.1) LoRa (Long… Continue reading LoRa Scicos Simulation_a
RTL-SDR for HF Marine GMDSS/DSC on SDRAngel
Introduction In previous posts I looked at decoding GMDSS/DSC HF & VHF signals using Multipsk on a Windows 10 Laptop & RaspberryPi4 (Refs.1/5). In this post I decode HF DSC signals using SDRAngel on a Windows 10 laptop. GMDSS/DSC HF Reception Parameter MF/HF VHF Frequency 2187.5, 4207.5, 6312.0, 8414.5, 12577.0, 16804.5 KHz 156.525MHz Baud Rate… Continue reading RTL-SDR for HF Marine GMDSS/DSC on SDRAngel
PlutoSDR for AM Modulation on GNU Radio
Introduction In a previous post I looked at using the PlutoSDR as a WSPR beacon (Ref.1). The PlutoSDR can be used to demonstrate standard AM Modulation as shown in Figure 1. Transmission is via a shielded sma cable plus 40dB pad to 3 test receivers: A Signal Hound spectrum analyzer, RTL-SDR and PlutoSDR receiver (Ref.2).… Continue reading PlutoSDR for AM Modulation on GNU Radio