The Icom AT140 HF (1.6-30MHz) Automatic Antenna Tuner is a professional-grade antenna built for demanding two-way radio environments. Highlights include wide Range HF Coverage and 45 Frequency Auto-Memories.
Key Features
- Wide Range HF Coverage: Automatically matches frequencies across the 1.6 MHz to 30 MHz range when connected to an antenna element 7 meters or longer.
- 45 Frequency Auto-Memories: Recalls matching parameters instantly from onboard memory blocks to drop re-tuning times to roughly 1 second.
- Ultra-Low Tuning Radiation: Emits a minimal 300mW RF footprint during setup to safeguard spectrum clarity and block interference with other vessels.
- Pass-Thru Tuning Integration: Retains a bypass pathway to ensure continuous basic receiver signal flow even if power pathways are deactivated.
Specifications
| Model/SKU | AT140 |
| Product Type | Automatic Antenna Tuner |
| Frequency Segment | HF (1.6 – 30 MHz) |
| Maximum Input Power | 150 Watts PEP / 100 Watts Continuous |
| Input Impedance | 50 Ohm (SO239 Female Coaxial Terminal) |
| Tuning Power Required | 5 – 15 Watts (Nominal Rated) |
| Tuning Speed | 2 – 3 Seconds Average (15 Seconds Max) |
| Re-tuning Speed | Approximately 1 Second (Memorized Channel) |
| Tuning Accuracy | VSWR 2.0:1 or Better |
| Memory Capacity | 45 Onboard Saved Frequencies |
| Power Supply Requirement | 13.6V DC (Supplied Directly from the HF Transceiver) |
| Current Drain | Max 2.0 Amps |
Compatibility: engineered to work with AT140, F8101, M803.
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