16. The cellular phone of claim 1 , wherein the received signal processing circuitry includes a duplexer connected to pass the modulated wireless signals received by the antenna, a low noise amplifier for amplifying the passed signals, a receive mixer for frequency-converting the amplified signals to a lower intermediate frequency, and an intermediate frequency demodulator for demodulating the frequency-converted signals; wherein the output circuitry comprises a speaker, and circuitry for transforming the demodulated signals into analog voice audio for output by the speaker.
17. The cellular phone of claim 16 , wherein the input circuitry includes a microphone, and circuitry for transforming analog voice input received from user speech inputs at the microphone into voice audio signals representative of the analog voice input; and wherein the input data signal processing circuitry includes a data modulator for modulating voice audio signals from the input circuitry into modulated intermediate frequency carrier signals, a transmit mixer for frequency-converting the modulated intermediate frequency carrier signals to modulated output frequency signals, a power amplifier for amplifying the modulated output frequency signals, and a duplexer for passing the modulated output frequency signals for transmission by the antenna.