Compact Vandal-Proof NMO Antenna Mount with Standard Interface
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Solution Overview
Problem
Existing vandal-proof NMO antenna mounts are too large and have non-standard interfaces, limiting their compatibility with most antennas and increasing costs, making them unsuitable for use in automobiles.
Innovation Solution
A compact vandal-proof NMO antenna mount with a standard interface, featuring a gold-plated contact pin, Teflon polymer barrel, and a set screw receptacle for securing antennas, along with a direct coaxial cable connection, maintaining 50 Ohm impedance and incorporating a zinc terminal lug for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a vandal-proof design is implemented using existing solutions, then protection against vandalism is improved, but the size increases and compatibility with standard antennas is lost
Solution Approach 1:
The antenna mount is designed with a standard NMO interface that simultaneously provides compatibility with existing antennas and vandalism protection features. The base includes both the standard mounting threads and a set screw receptacle, allowing a single device to serve multiple functions: standard antenna mounting and secure anti-vandal attachment.
2Reliability
If a vandal-proof design is implemented using existing solutions, then protection against vandalism is improved, but the device size increases making it unsuitable for automobiles
Solution Approach 1:
The invention merges the vandalism protection features directly into the base structure of the NMO mount. The set screw receptacle is integrated into the base body, and the retainer ring works in conjunction with existing components, eliminating the need for separate bulky protection devices and reducing overall size.
3Reliability
If existing vandal-proof solutions are used, then protection against vandalism is improved, but additional parts and non-standard interfaces increase costs
Solution Approach 1:
The base is designed to perform multiple functions: it provides the standard NMO mounting interface for antenna attachment and simultaneously includes the set screw receptacle for vandalism protection. This multi-functionality eliminates the need for separate components and reduces manufacturing complexity and cost.
Solution Approach 2:
The retainer ring and set screw mechanism are designed to work with the existing NMO interface components. The set screw threads through the base and secures the antenna push-pin from the rear, using the existing structural elements rather than requiring entirely separate fastening systems.
Data Source
AI summary
An antenna mount is provided including a contact pin having first and second distal ends, a barrel encasing the contact pin, a base encasing the barrel, a terminal lug press fit within a cross-section of the base, and a set screw receptacle disposed in a portion of the base for receiving a set screw to secure an antenna to the base. The first and second distal ends of the contact pin extend past first and second distal ends of the barrel, the first distal end of the contact pin extends past a first distal end of the base, and a second distal end of the base surrounds the second distal end of the pin.