QLF Filter Operation

Ordering

The QLF filter is very simple to operate.

Other Indicators

  • Pulse LED
    Provides a visual indication of the current working speed.
  • DIT/TRA/DASH LEDs
    Provides a visual indication of the transition from dit to dash. you can watch the LEDs to know when your dashes are properly spaced.
  • ERR LED
    This indicator will light when your code timing has significant variations that were not correctable by the QLF filter. This is truly a QLF indicator, and you should strive to keep this LED off in your effort to improve your keying technique.