| | : 600 Ohms) Receiver Circuit Type: Double-Conversion Superheterodyne (SSB/CW/AM/FM) ... . For Voice modes, you get 16 High-Pass Filter cutoff frequency selections, ... and 32 Low-Pass Filter selections,foratotalof512 ... ingcarrierswithin the audio passband, the DSP Auto-Notch provides a ... stIFof68.33MHz, the FT-857 features a double-conversion superheterodyne system (single ... to vary the center frequency of the IF passband, so as to eliminate interference above ... varies the center frequency of the RX passband (including the DSP BPF), as well as ... poleY F-122Soption provides a very flat passband response, for natural-sounding ...
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