Chameleon Antenna
Chameleon Antenna Blank Adapter, BNC, 3/8-24in.
Best modular adapter for portable amateur radio antenna setups.
The Chameleon Antenna CHA BLANK Adapter is a versatile base for portable antenna systems, featuring a 3/8" x 24 threaded connection for secure attachment of compatible whips like the SS58, SS17, and SS25. It easily converts to either an SO-239 or BNC connector for broad compatibility with RF equipment and coaxial cables. When paired with the CHA PUCK HUB, it supports up to six radials, enhancing antenna efficiency and performance by completing the ground circuit for vertical designs. This modular adapter allows for tailored antenna configurations to suit various operational needs.
$131.95
Owner Satisfaction
4.7
/ 5
Category Rank
6
/ 279
#6 in Antenna Mounts & Brackets
Price vs Category Average
+34%
Above average
Connector Type End A
BNC
/ BNC
Who it's for
- Operators using diverse antenna whips and standard accessories
- Field radio enthusiasts needing fast, tool-free setup
- Outdoor adventurers requiring gear that survives rugged conditions
Who should skip it
- Purists prioritizing minimal signal loss for weak-signal work
- Users with delicate radio chassis connectors prone to damage
- Budget-conscious hobbyists seeking the most affordable connection solution
Performance breakdown
Build Durability
Rugged metal construction withstands the rigors of frequent field deployment.
System Versatility
Modular design adapts seamlessly to various antenna configurations and connector types.
Radial Integration
Efficiently manages up to six radials to optimize signal ground performance.
Power Handling
Robust enough for high-power SSB operations in portable amateur radio setups.
Ease of Setup
Quick-change interface simplifies field assembly for rapid antenna deployment.
Component Compatibility
Standardized threading ensures a perfect fit for popular whip antenna models.
Key Specs
Connector Type End A
BNC
Connector Type End B
3/8-24in. Thread
Power Rating
Supports up to 300W SSB and 200W CW/digital modes
Compatibility
CHA SS58, CHA SS17, and CHA SS25 whips
Radial Support Capacity
Up to six radials (with CHA PUCK HUB)
Adapter Type
Blank Adapter
Manufacturer
Chameleon Antenna
Model Number
CHA-BNC
Features
- Secure 3/8" x 24 threaded whip attachment
- Converts to SO-239 or BNC connector
- Supports CHA SS58, SS17, SS25 whips
- Enables up to six radials with PUCK HUB
- Improves SWR and performance with radials
- Modular base for portable setups
- Durable metal construction
What customers say
Users overwhelmingly praise the Chameleon Antenna Blank Adapter for its exceptional build quality and reliability. Described as robust and durable, this adapter is highly valued by portable radio operators needing dependable connectivity in harsh conditions. Its primary function, seamlessly bridging the BNC connector to the 3/8-24 thread, is executed flawlessly, ensuring tight, secure connections with minimal signal loss. While the price is premium, reviewers agree the superior engineering justifies the cost, viewing it as a reliable investment. This accessory is considered an essential building block that unlocks greater flexibility for antenna configurations, solidifying high satisfaction within the portable ham radio community.
Know before you buy
This adapter is designed to work with Chameleon Antenna's SS58, SS17, and SS25 stainless steel whips, which utilize the standard 3/8"-24 threaded connection.
Yes, the adapter is modular and can be configured to work with either BNC or SO-239 connectors, providing flexibility for different coaxial cable setups.
The CHA PUCK HUB allows you to attach up to six radials to the base. This is essential for vertical antenna designs, as it helps complete the ground circuit, which significantly improves SWR and overall signal performance.
The adapter is rated to handle up to 300W for SSB voice modes and 200W for CW or digital modes, making it suitable for most portable amateur radio setups.
While it is constructed from durable metal and is water-resistant, it is primarily designed as a modular base for portable antenna systems. If you plan to leave it outdoors permanently, ensure all connections are properly weather-sealed to prevent oxidation.
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