Included
- Contents depend on BASIC, TOTAL, or PLUS option
- F-LOOP 3.0 tuning box and selected radiator
- Coupling loop, feed line, mast, and bag as listed for the selected kit
Manually tuned portable magnetic loop
A compact field loop with standard, booster, and rigid-radiator options.
Built for a real operating goal
Put HF capability into places where a full-size wire simply will not fit
CHA F-LOOP 3.0 is a portable manually tuned magnetic loop for balconies, campsites, travel, HOA-restricted properties, and field positions where a long radiator or elevated support is not practical.
Choose the kit and radiator that match the bands, pack size, and setup style you need, then tune the loop precisely at low power. Its compact footprint is the advantage; careful tuning, RF clearance, and the guide-defined power limits are part of operating it well.
- Standard loopApproximately 4.7–29.7 MHz; double loop approximately 2.8–11.9 MHz
- Booster loopApproximately 4.0–23.1 MHz
- Rigid loopGuaranteed 5.4–29.7 MHz
- Power25 W intermittent SSB; 10 W continuous modes
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
- Standard loop
- Approximately 4.7–29.7 MHz; double loop approximately 2.8–11.9 MHz
- Booster loop
- Approximately 4.0–23.1 MHz
- Rigid loop
- Guaranteed 5.4–29.7 MHz
- Power
- 25 W intermittent SSB; 10 W continuous modes
- Tuning
- Operator tuned; typically no greater than 3:1 at resonance
- Water resistance
- Not water resistant; IP30 equivalent, not tested
Know the complete setup before you transmit
Included equipment and documented configurations
Documented configurations
- Standard flexible loop
- Double flexible loop
- Booster loop
- Rigid aluminum loop
Configuration boundary: Do not use an external tuner to hide an incorrectly tuned loop. Retune after moving it or changing geometry. Observe the guide’s RF-exposure clearance and keep the loop dry.
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.
