Inverted delta loop
Supplied-part short- to medium-range configuration with useful NVIS behavior below 10 MHz.
Four-configuration portable HF antenna system
Four useful antenna geometries from one controlled field system
When the site changes, change the antenna geometry.
CHA TDL turns two fully extended SS17 whips, a 25 ft 4 in wire, the TDL HUB, and a HYBRID matching unit into four controlled HF antenna geometries. Use the supplied ground hardware for an inverted delta loop or quick vertical; add the guide's optional mast arrangement for a horizontal dipole or V-dipole.
The point is geometry choice without a loose pile of interchangeable parts. Select one complete TDL configuration, assemble it exactly, and use a tuner or coupler on 80 through 40 meters.
- Coverage80-6 m amateur bands
- Four geometriesLoop, vertical, horizontal, and V dipole
- RadiatorsTwo fully extended SS17 whips
- SetupOne operator, about 5 min
See the installation before you buy
How the complete system goes together
Use this official visual to understand the product’s scale, component order, and documented deployment paths before choosing a configuration.
Choose the deployment, not just the hardware
Documented ways to use this system
Each card describes a complete guide-controlled path. Connector fit alone does not create another supported configuration.
Ground vertical
Use one SS17 as the vertical radiator and the 25 ft 4 in wire in its documented counterpoise role.
Optional-mast dipoles
Form the guide's horizontal dipole or V-dipole using both SS17 whips and the controlled support arrangement.
Four configurations only: shared 3/8-24 threads do not authorize other radiator or mount substitutions. The 25 ft 4 in wire changes role only in the guide-defined vertical configuration.
Complete product reference
Key specifications
- Frequency
- Amateur bands from 3.5-54.0 MHz (80-6 m)
- Tuning
- Tuner or coupler required from 3.5-7.0 MHz (80-40 m)
- Configurations
- Inverted delta loop, ground-mounted vertical, horizontal dipole, and V-dipole
- HYBRID MICRO power
- 100 W SSB; 25 W all other modes, ICAS
- HYBRID MINI power
- 500 W SSB; 100 W all other modes, ICAS
- RF connection
- UHF plug (PL-259)
- Loop wire
- 25 ft 4 in; used as the counterpoise only in the documented vertical configuration
- Whips
- Two fully extended 17 ft SS17 telescoping whips
- Weight and setup
- Approximately 5 lb; one operator, approximately 5 minutes
Know what arrives and what the site still needs
Included and customer-supplied equipment
Included or selected with this product
- Selected HYBRID MICRO or HYBRID MINI
- Two CHA SS17 telescoping whips
- 25 ft 4 in TDL wire
- CHA TDL HUB and CHA SPIKE MOUNT
- Selected feed-line option and connection hardware
- Field storage
Customer supplies or selects as needed
- Tuner/coupler for 80-40 m
- Analyzer or SWR meter for final verification
- Optional mast/support arrangement for horizontal and V-dipole configurations
- Safe clear area for the selected antenna geometry
Coverage & Pattern
See the reviewed 2D and interactive 3D patterns
Open only the models that match this complete product configuration, band, height, ground, feed, and RF return.
