We have explained the basics for calculating the range and link budget in the last blog posts. The free space attenuation, line of sight and also the radio wave propagation on the Hata model are part of the simulation software of the following chapters. Hot air balloons are often used in the unlicensed band to […]
Gleiberg Castle is situated on a 300 metre high mountain spur at the western end of the village of Gleiberg of the same-named. The castle structure consists of the rebuilt outer castle and the ruined core castle. The tower is 30 metres high and has a diameter of 11 metres. From the top of the […]
There are many places where you can repeatedly read about the mystical range of 15 km at LPWAN. A manufacturer of LPWAN radio transceivers even advertises with 15 miles to 30 miles on its homepage, which would be 24 km to 48 km. Why not 700 km or 4300 km? None of the range specifications […]
In order to understand why more base stations automatically represent a better network, some explanations are necessary. Sigfox has planned 2400 gateways for Germany. These 2400 gateways are confronted with 24,000 LTE base stations from Vodafone and approximately the same amount from Deutsche Telekom. These 48,000 LTE base stations do not all need to be […]
The message container at LPWAN limits the application in the number of possible bytes per transfer. In addition to the physical container, there is always a logical limit. In the European unlicensed band we have one percent duty cycle in the upload. Therefore, only 36 seconds per hour are available for the protocol header and […]
The link budget is the total of all losses and gains from the transmission of a radio wave. A wave is amplified or attenuated by the antenna. During the transmission of a signal between transmitter and receiver, data can be lost. The study of losses and gains is therefore important to calculate the reliability and […]
The cheapest price for NB-IoT in Germany is currently one Euro per year. For one Euro per year you get 50 MBytes Upload or Download. The price applies to GPRS, UMTS and shortly LTE-M. In contrast you get 140 messages with 12 bytes in the upload and 4 messages with 8 bytes in the download […]
The link budget (LB) describes the delta of the transmitted and received power at the receiver. If the Maximum Coupling Loss (MCL) is exceeded, reception is no longer possible. For NB-IoT this is 164 dB. At 164 dB LB, the number of frame repetitions is already high. 164 dB can only be achieved in stand-alone […]
The akorIoT Group has a development team with many years of experience in wireless data transmission which today this is termed “Wireless IoT”. The integration of antennas into enclosures is another area of expertise for the akorIoT Group; in addition to standard antennas such as solderable chip antennas or flex PCB antennas, customer-specific antennas are […]
akorIoT is a portmanteau word from “akor” and “IoT“. “Akor” is the ancient Celtic word for “open”. The goal of the akorIoT SensPRO was to create an open platform similar to the idea of a Programmable Logic Controller (PLC). As with a PLC the programmability, storage of the program in memory and the execution of […]
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