The International Radiotelegraph Convention, the General Radio Regulations and the Additional Radio Regulations were revised. In addition, a table for the allocation of frequencies to the various ...
Abstract: For the first time, an asymmetric split-ring resonator (SRR) is employed for designing a dual-band anti-metal tag antenna that can cover both the Lower European (LEu) and North American (NA) ...
This project is hobby/amateur/toy/educational radio ESP32 based LoRa/FSK Codec2/OPUS DV handheld trasceiver a.k.a. walkie-talkie, which is using 1W E22-400M30S ...