[SIGFOX] How many bytes can I transmit in one message from my device? You can send up to 12 bytes per message from the device (uplink). Last Update: August 8, 2017 December 5, 2016 1305 SIGFOX Q&A Related Knowledge Base Posts -[SIGFOX] Can I have a trial subscription to test my application?[SIGFOX] 2) How to ensure data reception (acknowledgment System)? How to ensure only issue until the corresponding address has received the data?[SIGFOX] I know that I cannot do live testing here wheer I am living as there is no SigFox coverage, is there any way that I can test the design with a base station simulator ?