Choosing this model
GL401C selection guide
GL401C is the shorter option when comparing it with GL401F. Their listed RF specifications and weight are the same, so the meaningful selection difference is physical clearance rather than an advertised gain advantage.
Compare the 70 mm GL401C with the 80 mm GL401F against the available space. Both list BNC or TNC connections; specify the connector explicitly, with a T suffix for the TNC configuration, instead of relying on the base model alone.
