Product Description

Chameleon Antenna M‑COIL is a high-performance inductive loading coil rated for 200 W SSB and 100 W CW. It’s designed to enable efficient operation on lower HF bands—such as 30 m, 40 m, and potentially 60 m—when used with Chameleon vertical whips. Whether you’re operating portable, in the field, or from a limited-space location, the M‑COIL adds vital low-band capability to your setup.

Built for modular use and compact deployment, the M‑COIL excels in portable ham radio, emergency comms, POTA/SOTA activations, or even backyard HF configurations where full-sized antennas aren’t practical.

Key Benefits

• Enables 30 m, 40 m, and 60 m operation with shorter vertical whips
• Rated for 200 W SSB and 100 W CW for safe and stable operation
• Tool-free integration with Chameleon Antenna whips
• Compact, rugged, and field-deployable
• Part of the Chameleon MPAS modular antenna system

Whip Compatibility & Band Recommendations

Chameleon Antenna SS58 (1.5 m / 58″)

• Best Bands: 20 m and 30 m (with M‑COIL)
• Setup: Mount M‑COIL between the Blank Adapter and SS58 whip
• Applications: Great for stealth setups, HOA-limited spaces, and travel kits

Chameleon Antenna SS17 (5.2 m / 17′)

• Best Bands: 30 m and 40 m (with M‑COIL); 20–6 m without
• Setup: Extend to ~16′ for 40 m; ~7’5” for 30 m
• Applications: Excellent for POTA/SOTA, field day, and portable kits

Chameleon Antenna SS25 (7.6 m / 25′)

• Best Bands: 40 m and 60 m (with M‑COIL); 20 m without
• Setup: Fully extend SS25 for 40 m; tune whip and radials for 60 m
• Applications: High-efficiency field use with strong signal performance

Technical Specifications

Performance Tips

• Use Quality Radials: More and longer radials = better grounding and signal
• Adapt to Conditions: Check SWR; adjust whip length and radial layout
• Operate Safely: Keep distance from people and electronics during TX

Why Choose the M‑COIL?

The Chameleon Antenna M‑COIL is a rugged, efficient, and compact loading coil that extends your HF range—especially on 30 m and 40 m—without the burden of a full-size vertical. It’s ideal for modular HF setups where space, performance, and portability all matter.

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