Technical Specifications Product Specifications CC-Phone Modem Approvals: 1x RTT FCC Parts 15 and 24. Voltage: +5 Vdc from PCMCIA Slot Technical Specifications. Current: 740 mA max. Transmitter Power: 23.4dBm 0.473 EIRP Transmit: 1850 to 1910 MHz Receive: 1930 to 1990 MHz Channel Spacing: 50 kHz Freq. Stability: +I .O ppm. Environmental Specifications These specifications apply to the CC-Phone Modem PCS radio modem only, not to the accessory components.