The model FR-DX-400 Communication Reciver together with its accessories is designed to be used for SSB, CW, AM or FM reception on amateur bands in the frequency range from 1.6 Mc to 148 Mc. A citizen band (27 Mc) may also be covered as well as WWV. Basically, it is a double conversion superheterodyne (triple conversion for VHF bands) receiver employing crystal controlled high frequency oscillators, highly stable variable oscillator tuning the same range linearly on all bands and for selectivity, the MECHANICAL FILTERs and T-notch filter at the 455 Kc IF stage. A precise instrument type double gear driven dial together with an adjustable scale on the main tuning dial knob provides easy and accurate frequency readings on all bands within approximately 1 Kc. The receiver provides a wide variety of operations, such as rejection tuning, slow/fast AVC time constants, squelch circuit, crystal controlled operation, monitor circuit, and a 100 Kc./25 Kc calibrator. The receiver can be used as a transceiver in conjunction with our FL-DX-SSB Transmitter.