ECIA EIA-259-A PDF

This standard pertains exclusively to gas-filled rigid coaxial transmission lines and their connectors containing electrically transparent supporting structures. This standard does not apply to any semi-flexible transmission lines or connectors.

It is the intent of this standard to provide complete mechanical interchangeability for all lines and connectors. The drawings referred to in the standard do not in any way restrict electrical design parameters and are referred to for the purpose of confining the manufacturer within the necessary mechanical limits to make his electrical compensation, while still providing mechanical interchangeability.