IoT M2M blog

The home of free hints and tips about wireless IoT / M2M

LPWAN comparison – Weightless-P vers SIGFOX vers LoRa

Sigfox, Lora, Weightless P compared to each other

For comparison, the Hata Model was used. Hata is the most widely used radio frequency propagation model for predicting the behaviour of cellular transmissions in built up areas. Settings for the simulation on Hata model LPWAN Base Station Height = 30m End-Device Height = 0.5m Simulation results for LPWAN on Weightless P, LoRa and SIGFOX   If […]

Comparison of LPWAN like SIGFOX, LoRaWAN, Weightless P and NB-IoT/LTE-Cat-NB1 – Tuesday, March 14, 2017

embedded-world-2016

Tuesday, March 14, 2017, I will compare LPWAN like SIGFOX, LoRaWAN, Weightless P and NB-IoT/LTE-Cat-NB1 at embedded world in Nuremberg. Tuesday, March 14, 2017, 09:30 – 12:30 Session 03/I Connectivity – Wireless Technologies I Program: http://www.embedded-world.eu/program.html 09:30 – 10:00 Comparison of LPWAN Like SIGFOX, LoRaWAN, Weightless P and NB-IoT/LTE-Cat-NB1 Harald Naumann, Tekmodul 10:00 – 10:30 […]

What is NB-IoT? Lesson 1

History of name for LTE-Cat-NB1 and LTE-Cat-M1

Fundamentally, there really is no such thing as “NB-IoT”. The correct term is “LTE-CAT-NB1”. This technology is sometimes confused with Cat-M, which is another misnomer. The correct name for “Cat-M” is LTE-Cat-M1. Both these technologies, LTE-Cat-NB1 and LTE-Cat-M1 are just subsets of “classic LTE” and are a part of the 3GPP Release 13 fixed in […]

Antennas tests – preparing a PCB for a device in the Internet of Things

Calibration of the VNA on PCB with embedded antenna

Calibration of the VNA on PCB with embedded antenna The calibration of the VNA (Vector Network Analyser)  for a PCB with embedded antenna is difficult. The final antenna with all components except the wireless module should be mounted inside the final enclosure. The wireless module will be replaced by the probe. The three calibrations of […]

Antenna Tutorial -Self-made PCB antenna for NB-IoT and GSM for cost US$ 0

Self-made Embedded Antenna Design verus Chip antenna

Self Made Embedded Antenna Design versus Chip Antenna The wireless Internet of Things has a need for inexpensive wireless modules and antennas. An LTE-Cat-NB1-module (NB-IoT) will cost less than US$ 6 at 1K order. A self-made NB-IoT antenna on PCB could cost US$ 0. Within 60 minutes you will learn which is commercially and technically […]

Update IoT / M2M Cookbook, 3 hour Antenna Tutorial, IoT at Electronica in Munich

IoT M2M Cookbook

This quarter I have a lot of IoT / M2M news for you: 1. Update IoT / M2M Cookbook Since 4 weeks the update is on the server, listed here: http://www.gsm-modem.de/M2M/m2m_iot_cookbook/ More than 12 pages are related to ceramic chip loop antennas for GPS/GLONASS and Bluetooth. Loop antennas have no hand effect and will not […]

Is it possible to use iBeacons / BLE beacons for triangulation or BLE indoor localisation?

Shopping trolley tracking at supermarket

Please find another close the same messages or questions on BLE indoor localisation to me as below. I get the question again and again at least once a month. It is time for a block post on this topic. What is the recommended way to implement BLE beacons to perform indoor localisation? What is the […]

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