ICOM AT-141 Automatic Antenna Tuner
The Icom AT-141 is an antenna tuner specifically designed for shortwave transceivers. Here are some key features of the AT-141:
- Frequency Range: It operates in the frequency range of 100 kHz to 30 MHz (with a 7-meter or 23.0-foot antenna element or longer).
- Power Handling: The AT-141 can handle a maximum input power of 150 watts (PEP) or 100 watts continuous.
- Automatic Tuning: It tunes automatically in approximately 2 to 3 seconds under general conditions, with a maximum of 15 seconds. For re-tuning to a memorized frequency, it takes about 1 second.
- Tuning Accuracy: The automatic tuning accuracy achieves an SWR of 2.0:1 (except for multiples of 1/2 λ).
- Antenna Connector: It features an SO-239 connector (50 Ω).
- Operating Temperature Range: The AT-141 can function in temperatures ranging from -20°C to +55°C.
The AT-141 is ideal for maritime use and has all the necessary connections for utilizing, for example, the backstay as a radio antenna for transmitting and receiving. If you’re setting sail, this tuner will help keep your radio communication shipshape! 🚢📻
Specifications
| Frequency coverage | 1.6–30 MHz (with 7 m or longer antenna element) |
|---|---|
| Power supply requirement | 13.6 V DC (supplied from the HF transceiver) |
| Current drain | Maximum 2 A |
| Operating temperature range | –20°C to +55°C |
| Weight (approximately) | 2.5 kg |
| Antenna connector | SO-239 (50 Ω) |
| Maximum Input power | 150 W (PEP) 100 W (continuous) |
| Automatic tuning time | Approximately 2 to 3 seconds (general condition) Maximum 15 seconds |
| Automatic tuning accuracy | SWR 2.0:1 (after tuning, except for multiples of 1⁄2 λ) |
| Usable pole diameter | 32 to 60 mm |
| IP rating | IPX6 |
| Note | Version 45 must be used for MED certification compliance with the GM800. |
Version List
| Version Number | Version | Transceiver |
| Ver 45 | EUR-02 | For GM800 |
| Ver 64 | EUR-01 | For IC-M804 |
