MIoTy

Sigfox was the old standard 69hW https://www.sparkfun.com/rfm69hcw-wireless-transceiver-915mhz.html RFM69HCW Wireless Transceiver - 915MHz Telegram Splitting Ultra Narrow Band or TSUNB 868 MHz carrier, two channels of 100kHz MQTT and Mosquito 2300kBit/s kbps TX Chip Hope RF - hope rf hm-trp-915 rf module Design Note (DN) from ti on Antennas Vector network analyzer; Smith diagram to plot complex impedances; or smith chart https://gitlab.tu-ilmenau.de/tihe4927/pico-demo-tsunb

VNA = Vector Network Analyzer Misst die S-Parameter durch S11 = wiviel reflektiert die Antenna

MIoTy <--> mqtt