开云体育

I am learning about RF and antennas and I want to understand how do I figure out how much the IF offset is, in NanoVNA-H4. I could not find any article explaining how to check if the default IF OFFSET (12kHz) is accurate.

I also do not understand why its called an offset, since from what I read, this is the frequency that the VNA downconverts and uses it for receive-measure purposes. So it should say "IF", not "IF OFFSET".

After all if it was indeed an offset setting, it would be default to 0, not around 12kHz.

Hi

I think a 12Khz IF offset should be kept at default value and forget it , it gives the optimal Harmonic ratio filtering with the RC 1sft ordre low pass filter in the Hardware of nanovna

73's Nizar

Thanks, looks like this is the only answer I got.
Where could I get a more definite answer? This should be mentioned somewhere, in a documentation or in gitlab. :/