nRF403 is a true single chip UHF transceiver designed to operate in the 315/ 433 MHz ISM (Industrial, Scientific and Medical) frequency band. It features Frequency Shift Keying (FSK) modulation and demodulation capability. nRF403 operates at bit rates up to 20kbit/s. Transmit power can be adjusted to a maximum of 10dBm. Antenna interface is differential and suited for low cost PCB antennas. nRF403 features a standby mode which makes power saving easy and efficient. nRF403 operates from a single +3 V DC supply. As a primary application, nRF403 is intended for UHF radio equipment in compliance with class I.a of the European Telecommunication Standard Institute (ETSI) specification EN 300 220-1 V1.2, US FCC standard CFR 47 and Japanese Regulations for Telecommunication.