new experimental to operate on frequencies in the 26.96-27.28 MHz, 49.82-49.90 MHz, 902-928 MHz, 2400-2483.5 MHz and 5725-5875 MHz ranges for develop- ment, testing, and demonstration, of portable radio data communications system new experimental to operate on frequencies in the 26.96-27.28 MHz, 49.82-49.90 MHz, 902-928 MHz, 2400-2483.5 MHz and 5725-5875 MHz ranges for develop- ment, testing, and demonstration, of portable radio data communications system