Description
Icom AT-140 Automatic Antenna Tuner | Boat Supply Store
Achieve optimal single-sideband (SSB) radio performance by matching your Icom IC-M802 or IC-M803 transceiver to your antenna system with the Icom AT-140 automatic antenna tuner. This unit operates across a frequency range of 1.6 to 30 MHz, automatically tuning in approximately 2.5 seconds to ensure maximum radiated power. Designed for marine environments, it handles an input power of 150W PEP, providing reliable communication for offshore passages or coastal cruising.
Key Features
- Rapid Tuning for swift impedance matching
- Broad Frequency Coverage from 1.6 to 30 MHz
- High Power Handling up to 150W PEP
- Automatic Operation minimizes user intervention
- Compact Design for efficient installation
- Corrosion-Resistant Construction for marine durability
- Built for Icom Transceivers ensuring seamless integration
- Reliable Performance in demanding conditions
Specifications
| Product Specifications | |
|---|---|
| Frequency Range | 1.6 to 30 MHz |
| Input Power (PEP) | 150W PEP |
| Tuning Time (approx) | 2.5 seconds |
| Power Requirement | 13.6V DC +/- 10% |
| Current Drain | 1.5A max |
Who This Is For
This automatic antenna tuner is designed for mariners utilizing Icom IC-M802 or IC-M803 single-sideband radio transceivers. It is ideal for those requiring consistent and efficient long-range communication capabilities for offshore voyages.
How It Compares
| Feature | Icom AT-140 Automatic Antenna Tuner | Competitor |
|---|---|---|
| Frequency Range | 1.6 to 30 MHz | 1.5 to 30 MHz |
| Input Power (PEP) | 150W PEP | 100W PEP |
| Tuning Time (approx) | 2.5 seconds | 3 seconds |
Common Concerns Answered
Will this tuner properly match my antenna for best SSB performance?
The AT-140 is specifically engineered to automatically match a wide range of antenna lengths and types to your Icom IC-M802 or IC-M803 transceiver, ensuring optimal radiated power across the 1.6 to 30 MHz band.
How long does the automatic tuning process take?
The AT-140 boasts a rapid tuning capability, completing the impedance matching process in approximately 2.5 seconds, minimizing any interruption to your communication.
Is this tuner built to withstand a marine environment?
Yes, Icom products are known for their marine-grade construction, designed to resist the corrosive effects of saltwater and humidity for long-term reliability.
Frequently Asked Questions
What transceivers is the Icom AT-140 compatible with?
The AT-140 is designed for direct compatibility with the Icom IC-M802 and IC-M803 single-sideband transceivers.
What is the maximum power output this tuner can handle?
The tuner is rated to handle a maximum input power of 150 Watts PEP (Peak Envelope Power).
Does the AT-140 require a separate power source?
Yes, the AT-140 requires a 13.6V DC power source with a tolerance of +/- 10%, drawing approximately 1.5 Amps maximum during tuning.
What is the minimum antenna length required for operation?
While the AT-140 is highly versatile, an antenna length of approximately 7 meters (23 feet) is generally recommended for optimal performance across the full frequency range.
Can this tuner be used with non-Icom SSB radios?
The AT-140 is specifically designed and optimized for Icom transceivers IC-M802 and IC-M803. While it might offer some degree of compatibility with other 12V SSB radios, full functionality and performance are only guaranteed with the specified Icom models.
