Self made test cables for VNA......

[tooki]

RG400 is a very wide specification

Well, it’s not really. The issue is that the original RG series of specifications (published as US military standards) were retired long ago, and countless companies started making cables that are merely inspired by the RG standards.

FWIW, the true mil-spec cables are now defined under the revised MIL-DTL-17 series of standards, which remove many of the freedoms present in earlier specs. (Those standards can be found at https://quicksearch.dla.mil/qsSearch.aspx .) Note that most commercial cables do not claim to be mil-spec, and thus don’t have to follow the standards.

[knudch]

RG400 is a very wide specification

Well, it’s not really. The issue is that the original RG series of specifications (published as US military standards) were retired long ago, and countless companies started making cables that are merely inspired by the RG standards.

FWIW, the true mil-spec cables are now defined under the revised MIL-DTL-17 series of standards, which remove many of the freedoms present in earlier specs. (Those standards can be found at https://quicksearch.dla.mil/qsSearch.aspx .) Note that most commercial cables do not claim to be mil-spec, and thus don’t have to follow the standards.

what I meant was that RG cable spec has limited number parameters  and a most manufacturers specifiy more/better data than the RG spec gives

Knud