Deskripsi
ICOM AT-140 Antenna Tuner
For 1.6–30 MHz (with 7 m; 23.0 feet) or longer antenna element)
Features
Weather Resistant
- The AT-140 is housed in a durable, completely weather resistant ASA case, with a rubber gasket. The antenna tuner can be conveniently near the antenna element.
Matches All Bands
- The AT-140 matches all frequencies on the HF marine band. For example, the tuner matches a 7 m (23 feet) long-wire antenna across 1.6 – 30 MHz.
Full Automatic Tuning
- Just push the [TUNE] key on the transceiver, and the AT-140 immediately tunes for a minimum SWR on any frequency in the HF marine band.
HF Operation On Any Size Ship
- The AT-140 allows HF operation where antenna element length is restricted due to space.
Simple Installation
- Installation is simple. Just connect the control and antenna cables. You never need to open the cover.
45 Memories for Shorter Tuning Time
- To decrease the tune-up time, the AT-140 automatically stores the matching conditions for up to 45 frequencies. Returning a memorized frequency takes approximately 1 second.
Super Capacitor for Memory Backup
- Even if the AT-140 is not used for approximately 1 week, the built-in super capacitor backs up the contents of the 45 memories.
Low Power Tune-Up
- The AT-140 emits low output power during tuning. This features reduces the possibility of causing interference to other stations.
Tuner Through Function
- The Tuner Through function is built into the AT-140. This function helps improve receiver gain, depending on the antenna element length used, and the operating frequency.
Specification
| General | |
| Frequency Coverage | 1.6 – 30MHz (with a wire antenna longer than 7 meters, and the ground terminal connected to the vessel’s ground point, or a counterpoise wire longer than 7 meters.). |
| Power Supply Requirement | 13.6V DC ±15% (supplied from HF transceiver) |
| Current Drain | 1.0A or less |
| Operating Temperature Range | -30°C to +60°C (-22°F to +140°F) |
| Weight (approximately) | 2.5kg; 5.5lb |
| Antenna Connector | SO-239 (50Ω) |
| Maximum Input Power | 150W (PEP) 100W (continuous) |
| Automatic Tuning Time | Approximately 2 to 3 second (general condition) Maximum 15 seconds Approximately 1 second (re-tuning for a memorized frequency) |
| Automatic Tuning Accuracy | SWR 2.0 : 1 or less (after tuning, except for multiples of ½ λ) |
| Usable Pole Diameter | 32 to 60mm; 1.3 to 2.4 inches |
| Compatible | |
| HF Radios | -IC-F8101 -IC-78 |
| SSB Radios | -IC-M802 -IC-M803 -IC-M701 –IC-M700PRO |
| Manual | |
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