NCO Calculator

[Mike, K8LH]

Hi mpgmike. Thanks for the reply.

Those are the same numbers I got from NCO Calculator. May I ask how you produced some of those numbers, if you have time, please? I'm concerned that I'm using the wrong formulas for the calculated output frequency and error.

What formula did you use to produce the 120795.84 phase increment value? My result was 120795.9552 which is ever so slightly different (formula in my previous post).

What formula do you use to produce "Result Rounded Up" and "Result Rounded Down" values? Are those supposed to be the frequency output when you round the phase increment value to integer values of 120795 or 120796? I'm concerned about my calculations as I came up with an output frequency of 1843200.68359375-Hz (~0.00004% off) using 120796 for the phase increment value.

If I'm using the wrong calculations I'd like to fix them and update the frequency error comments in my project.

Thank you for your time and kind consideration.

Cheerful regards, Mike, K8LH