Norm, There may be better ways but what I do is use the A/B button, set the frequency and then A/B back. Rick K6LE On 6/22/2010, at 4:25 , Norman L Zinn wrote: > How does one go about using the key pad to key-in a frequency to the Sub > Receiver? > I see nothing in the K3 Manual on this. > Norm > AAV5VW / KB8EEF