ISEL/FIT TTN gateway located at Amoreiras Towers (Lisbon) received successfully a communication from a weather balloon launched by the folks at Servet Project, from Saragossa, Spain at a distance of 741km “(…) Finally, the record was established at 741 km when the probe contacted Lisboa.(…)”. The communication was made using LoRaWAN, an IoT protocol where devices use at most 25mW on the 868MHz ISM band.

The World Record was later superseded by a new experiment from the University of Saragossa, with a confirmation of a contact at 766km with a gateway located at a Ski Resort.

More details can be found on the TTN news post here, and on the TTNMapper experiment, that can be found here.