The controlling User Guide for the exact product and configuration determines which wire connects where. Some configurations intentionally use a counterpoise; some may use a documented coax length as part of the return path; vertical configurations can benefit from multiple radials.
Portable verticals
The whip is one side of the antenna. The radial/counterpoise system is the other side. More complete and symmetrical return systems generally make performance and tuning more predictable, but use only mechanically safe, documented configurations.
End-fed and wire configurations
The HYBRID transformer changes impedance; it does not eliminate the need for return current. If the guide permits the feed line to serve as part of that return, the coax length and choke position become part of the antenna system.
A useful field test
- Deploy the documented baseline.
- Record SWR and receive noise.
- Add or rearrange only the approved counterpoise/radial component.
- Repeat the same measurement.
- If moving coax changes the result, investigate common-mode current and choke placement.
Product authority
Current product instructions always control included components, configuration, power, assembly, and safety. This page explains the shared engineering principle and does not create new compatibility.
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Source and revision note
Reviewed August 3, 2026. This page is an independent Chameleon synthesis informed by the ARRL Handbook for Radio Communications (station grounding, bonding, safety, and RFI chapters), The ARRL Antenna Book (ground effects, radial and counterpoise systems, multiband antennas, and lightning protection), current CHA MPAS 2.0, MPAS Lite, and HYBRID product guides plus approved Chameleon product policy, and owner-approved operating policy. It does not reproduce protected source text or figures. Electrical and lightning-protection requirements vary by jurisdiction; permanent installations must follow current applicable codes and qualified local guidance.
