Yes 75 ohm N connectors are dimensioned differently than 50 ohm connectors. The difference is the center pin diameter. NEVER try and mate a 50 ohm to a 75 ohm as the 50 ohm pin is larger than the 75 ohm connector
/RANT
NEVER SHOULD HAVE MADE 2 VERSIONS WITH THE SAME OUTER THREAD
/RANTOFF
Content by Scott
Typos by Siri