How effective are the K3s filters for copying CW?
With the K3, you can narrow down both the 1st IF (crystal roofing filter) and the DSP (2nd IF). This makes for very nice CW copy, even if there are humongous signals outside the passband. You simply won’t hear them. We also have a CW decoder built in that will either copy and display the characters on the LCD. The decoder also works for PSK31 and RTTY, and you can transmit in these modes just by sending CW with the keyer paddle. This eliminates the computer entirely, should you be so inclined.
