The Swan Model 700CX Transceiver together with its accessories and optional equipment, is designed to be used in either CW, AM or SSB modes on all portions of the 80-, 40-, 20-, 15-, and 10 meter amateur radio bands. Many of the MARS frequencies may also be covered by using the Model 51 OX oscillator accessory. The Model 700CX generates a single sideband signal by means of crystal lattice filter, and the transceive operation automatically tunes the transmitter to the received frequency. Provisions are included in the transceiver for operation on either upper or lower sideband.