Included
- Matching transformer
- 44 ft 5 in wire with isolation ring
- 22 ft 1 in wire with isolation ring
- Small winder and OD pouch
- Feed line only with the WITH COAX option
40 m off-center-fed dipole
A 66 ft off-center-fed HF dipole with defined 44 ft 5 in and 22 ft 1 in wire legs.
Built for a real operating goal
Cover the core HF bands with one familiar 66-foot dipole footprint
CHA OCF40 is a complete Chameleon antenna choice for operators who want a documented path from the package to an operating HF or VHF/UHF station without assembling an unverified collection of parts.
CHA OCF40 is an off-center-fed dipole for operators who want useful multiband operation from a straightforward horizontal or inverted-V wire installation. The unequal 44-foot 5-inch and 22-foot 1-inch legs are the antenna design, not interchangeable pieces. Deploy that exact topology, choose the coax option that fits the station, and add a tuner for the documented additional bands when required. For a first-time buyer, the advantage of CHA OCF40 is that the major antenna role is already defined. You are choosing a documented system for a real operating job, not collecting unrelated parts and hoping they behave as one antenna. Match the deployment, required support, feed line, return path, tuner expectations, and included-versus-optional equipment to the way you actually plan to operate. Choose it by matching the antenna's documented strengths to the operating environment: available space, support height, setup time, desired bands, tuner access, portability, and the type of coverage the operator is trying to achieve. A clear comparison against nearby Chameleon systems will help both a new customer and an existing owner decide whether this adds a genuinely different capability.
- No-tuner bands40, 20, 10, and 6 m
- With tuner60, 30, 17, 15, and 12 m
- Total spanApproximately 66 ft
- Wire legs44 ft 5 in and 22 ft 1 in
Picture the setup before you buy
See how this antenna works in the field
This official installation reference makes the antenna’s footprint, component order, and deployment style easier to understand at a glance.
Complete product reference
Key specifications
- No-tuner bands
- 40, 20, 10, and 6 m
- With tuner
- 60, 30, 17, 15, and 12 m
- Total span
- Approximately 66 ft
- Wire legs
- 44 ft 5 in and 22 ft 1 in
- Power
- 50 W SSB; 25 W CW and other modes
- Typical SWR
- Less than 2.2:1 on covered bands
Know the complete setup before you transmit
Included equipment and documented configurations
Documented configurations
- Horizontal off-center-fed dipole
- Inverted-V within guide-defined support and feed-point geometry
Configuration boundary: This is an antenna, not a coax accessory. Preserve the unequal wire-leg topology. An integrated feed-point choke satisfies the choke role; do not automatically add a second CHA RFI CHOKE.
Coverage & Pattern
See the reviewed 2D and interactive 3D patterns
Use only a model that matches this exact antenna configuration, band, height, ground, feed, and RF return.
