MFJ-781

Add "brick wall" DSP filtering to any TNC or Multimode data controller. Copy signals buried in noise and QRM - signals you cant even hear! MFJ-781 gives you an arsenal of 100 incredibly sharp No*Ring linear phase FIR filters. 20 filters on the front panel switch 00easy turn-of-the-know selection. Plugs between radio and TNC. Input/output level controls. Accurate input level indicator. AGC, on/off bypass switch, built-in automatic self test.