It’s important not to confuse coaxial cables made to current Military Specifications (M17/75 or Mil Spec) with those now simply labeled as “RG”. Unlike current Mil Spec coax which must meet tough specific criteria, RG coax made today meets only the standards of the company producing it. In certain applications a lower quality RG coax at a cheap price may be all that is required to operate but in most cases Ham and CB operators will want the best transmission line available.