ICOM AT-130 Antenna Tuner

The Icom AT-130 is an automatic antenna tuner designed for use with HF (high-frequency) SSB (single sideband) radios. It allows you to fine-tune your radio’s antenna system for optimal performance. Here are some key specifications for the AT-130:

Frequency Range: Covers the range from 1.6 MHz to 30 MHz (with a 7-meter or longer antenna element).
Power Supply Requirement: It operates on 13.6 V DC, which is supplied from the HF transceiver.
Current Drain: Maximum of 2 A.
Operating Temperature Range: From -30°C to +60°C (or -22°F to +140°F).
Antenna Connector: SO-239 (50 Ω).
Maximum Input Power: 150 W (PEP) and 100 W (continuous).
Automatic Tuning Time: Approximately 2 to 3 seconds under general conditions, and around 1 second for re-tuning to a memorized frequency.
Tuning Accuracy: Achieves an SWR (standing wave ratio) of 2.0:1 after tuning, except for multiples of 1/2 λ.

The AT-130 is particularly useful for maritime mobile operations. When connected to an Icom HF transceiver, simply press the “Tune” switch, and the AT-130 will automatically adjust the antenna and transceiver to achieve the minimum SWR across various HF marine frequencies. This ensures optimal communication performance while at sea. If you’re an avid sailor or radio enthusiast, the AT-130 can be a valuable addition to your setup! 🌊📻

Specifications

Weight (approximately)	AT-130 2.5 kg; 5.5 lb
Power supply requirement	13.6 V DC (supplied from the HF transceiver)
Current drain	Maximum 2 A
Operating temperature range	–30°C to +60°C; –22˚F to +140˚F
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 Approximately 1 second (re-tuning for a memorized frequency)
Automatic tuning accuracy	SWR 2.0:1 (after tuning, except for multiples of 1⁄2 λ)