Thank you for your e-mail. Programming the TH-22AT/42AT 1. Push VFO button 2. Enter desired FREQUENCY 3. Choose an OFFSET - or + by pushing the F key than the Shift key 4. Push the T/CT button until T shows in the left side of the display 5. Choose a PL or TONE push the F key for 2 seconds when the numbers for memory light up on the right side of the display please push the T/CT key then proceed to turn the ENC/SQL knob (top right) to desired PL/Tone. 6. Choose a MEMORY push and hold F key for 2 seconds. 7. When the numbers for Memory light up on the right side of the display turn the ENC/SQL knob (top right) to the memory you want. Please push the MR key to store all that information into MEMORY. If you need further assistance, please e-mail us again. Sincerely, Kenwood Amateur Radio Customer Support