IoT M2M blog

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

400 students have already enrolled at the IoT-University

Direction in LPWAN

The IoT-University was launched just one month ago. In just four weeks there are more than 400 students on the course. Students want to learn and to educate them we need more mentors who love to share; we have space for eight more to join us. If you have something to share, join us. Become […]

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


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: 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 […]

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 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 […]

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