The CHA SINGLE-EXT is a modular extension component designed for Chameleon Antenna systems, specifically enhancing the versatility and range of antennas like the CHA BV (Basic Vertical) and other MPAS (Modular Portable Antenna System) configurations. This extension provides added length to improve resonance and efficiency across various HF bands, making it suitable for operators seeking enhanced performance in portable and field deployments.

Key Features of the CHA SINGLE-EXT

Increased Antenna Length for Extended Coverage:

• By adding the CHA SINGLE-EXT to a setup like the CHA BV, users can effectively extend the total length of the antenna, which improves resonance at lower frequencies.
• The extension is beneficial for 40-meter and 30-meter bands, where additional height can make a substantial difference in radiation efficiency and range.

Compatibility with MPAS Components:

• The CHA SINGLE-EXT is compatible with various Chameleon Antenna whips and components, such as the CHA SS58, CHA SS17, and CHA SS25, through a 3/8" x 24 threaded connection.
• This compatibility makes it easy to customize setups and achieve specific operating goals, such as broadening the bandwidth or adjusting the antenna length to achieve the optimal SWR on target frequencies.

Robust and Weather-Resistant Design:

• Built with durability in mind, the CHA SINGLE-EXT is weather-resistant, making it suitable for prolonged outdoor use.
• This extension is designed to endure rugged environments, from forests and mountains to urban areas with harsh weather conditions, ensuring reliable performance in any setting.

Portable and Lightweight:

• The CHA SINGLE-EXT is designed to be lightweight and easy to transport, ideal for field operators or portable setups where minimizing weight is critical.
• This portability complements the overall design of the MPAS, which is meant for quick setup and breakdown in diverse environments.

Operational Advantages

• Enhanced Ground Wave and Skywave Propagation:
• By increasing the antenna length, the CHA SINGLE-EXT contributes to improved ground wave and skywave propagation, allowing operators to achieve better performance at various distances.
• This extension is particularly useful for HF bands that require added height to optimize radiation patterns, making it a valuable addition for both local and long-distance communication.
• Adjustable Configuration for Optimal Performance:
• Users can easily install the CHA SINGLE-EXT between the base component (such as the CHA BLANK) and the chosen whip (e.g., SS58, SS17, or SS25) to extend the antenna’s effective length.
• This modular approach allows operators to adapt the antenna configuration to changing propagation conditions, site constraints, or communication goals without requiring a completely new antenna system.

Example Configuration

In a Basic Vertical (CHA BV) Setup, the CHA SINGLE-EXT can be used as follows:

• Setup: Connect the CHA SINGLE-EXT to the CHA BLANK base, then attach the SS17 or SS25 whip to the extension.
• Enhanced Coverage: This setup increases the effective length of the antenna, improving resonance on lower HF bands like 40 meters, especially when paired with a loading coil.
• Field-Friendly: Maintains a compact profile and can be quickly deployed, ideal for field operations where efficient use of space and setup speed are essential.

Technical Specifications

• Connector: 3/8" x 24 threads for compatibility with other MPAS and Chameleon components.
• Material: Durable, weather-resistant construction for use in outdoor environments. Anodized Aluminum and Stainless Steel
• Length: 27" Each
• Weight: 0.56 lb. (One section)

The CHA SINGLE-EXT is a practical and powerful addition to Chameleon Antenna’s modular antenna systems, allowing operators to tailor their setups for improved HF performance. Whether for emergency communications, field operations, or recreational use, the CHA SINGLE-EXT enhances versatility and adaptability, ensuring reliable communication across diverse HF bands and operating conditions​(BV User Guide 240708).

The CHA SINGLE-EXT (PACK OF 2) consists of: 

2 X CHA SINGLE-EXT