Comet Antenna Mount Adapter AD-35M
Best adapter for mobile radio enthusiasts upgrading their antenna systems.
Seamlessly integrate your antenna and mount with the Comet Antenna Mount Adapter AD-35M. This adapter is expertly designed to bridge the gap between a 3/8 x 24 threaded antenna stud and a standard SO-239 mobile mount. It simplifies upgrades and ensures a robust connection, allowing you to quickly set up your mobile antenna system. Ideal for amateur radio enthusiasts, this adapter provides a reliable solution for adapting existing mounts to new antennas, ensuring your communication setup is efficient and dependable.
$22.95
Owner Satisfaction
4.7
/ 5
Category Rank
6
/ 279
#6 in Antenna Mounts & Brackets
Price vs Category Average
-77%
Below average
Coaxial Adapter Style
Antenna mount
/ Antenna mount
Who it's for
- Radio operators needing flexible antenna and mount combinations
- Mobile users requiring durable gear for harsh outdoor conditions
- Hobbyists wanting quick, tool-free setup changes
Who should skip it
- Performance purists sensitive to minor signal degradation
- Drivers with limited overhead clearance in garages
- Budget-conscious buyers seeking basic, low-cost hardware
Performance breakdown
Build Integrity
Solid construction ensures a stable connection for heavy mobile antennas.
Installation Simplicity
Straightforward bolt-on design makes mounting a quick, frustration-free process.
Compatibility Range
Perfectly bridges the gap between standard SO-239 mounts and threaded antennas.
Signal Reliability
Maintains consistent electrical contact for clear, uninterrupted radio transmissions.
Vibration Resistance
Stays securely fastened even during high-speed highway driving conditions.
Upgrade Versatility
Allows for rapid antenna swaps without replacing the entire mount assembly.
Key Specs
Coaxial Adapter Style
Antenna mount
Coaxial Adapter End 1
UHF (SO-239)
Coaxial Adapter End 2
3/8 x 24 thread
Manufacturer's Part Number
AD-35M
Product Line
Comet Antennas Mount Adapters
Application Type
Amateur Radio
Adjustability
Fixed Angle
Installation Method
Bolt-On
Features
- Adapts SO-239 mounts to 3/8 x 24 antennas
- Facilitates quick antenna system upgrades
- Ensures reliable coaxial connection
- Designed for mobile antenna applications
- Versatile for various installations
- Quick and efficient setup
- Robust connection integrity
What customers say
The Comet AD-35M adapter is overwhelmingly viewed as an essential, high-quality component for seamlessly integrating diverse antenna systems, especially adapting 3/8-24 threaded antennas to Comet mounts. Reviewers consistently praise its robust construction, often featuring durable stainless steel or heavy brass, ensuring exceptional longevity. Satisfaction centers on the precision threading and solid electrical connection it guarantees, eliminating issues found with lesser adapters. While the initial price seems high for a specialized part, users quickly recognize the exceptional value due to its flawless performance and the peace of mind it provides regarding signal integrity and antenna security. This adapter is considered a trusted, purpose-built solution for serious operators relying on mixed antenna setups.
Know before you buy
The AD-35M acts as a bridge, allowing you to attach an antenna with a standard 3/8 x 24 threaded base to a mobile mount that uses an SO-239 connector.
Yes, it is designed for mobile applications and is intended for use with drill-through or trunk-mount setups. It provides a secure, fixed connection for your antenna system.
No, the AD-35M is a fixed-angle adapter. It is designed to provide a stable, rigid connection point rather than an adjustable mount.
It is compatible with any antenna that utilizes a standard 3/8 x 24 threaded stud. Please verify your antenna's base threading before purchase to ensure a proper fit.
The adapter features a bolt-on design. You simply thread the adapter into your existing SO-239 mount and then screw your 3/8 x 24 antenna onto the top of the adapter.
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