ICOM AT130 PDF

Icom automatic antenna tuner, Manufacturer’s Part Number AT, matches the SSB transceiver to a long wire or whip antenna with little insertion loss. for the AT/ATE/AT HF AUTOMATIC ANTENNA are registered trademarks of Icom Incorporated (Japan) in the United States, the United Kingdom. Find great deals for Icom AT Shop with confidence on eBay!.

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Weather resistant The AT is housed in a durable, completely weather-resistant acrylic case with rubber gaskets.

When tuning the same frequency twice, it is all over in less than a second. Quick tune-up Improved tuning performance…the tune-up time is less than 3 seconds in any frequency on an HF marine band. As its a commercial unit and unlikely to be connected to a non-icom HF set, I can see why this has gone undetected. It appears it needs to also “be told” with a switch. Just lately it stopped doing that. It is a capable tuner if you observe the following measures: Give it a better than average ground.

This reduces the possibility of causing interference to other stations using the frequency. The AT manual is very skimpy. Sadly, it is not compatible with a balun The pain that I experienced was the “start” input. The main benefit of the ‘ is cost. Use a choke balun to reduce shield radiation.

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I’m limited as to the amount of RF i can put through it but watts is OK for me and as i said i have a balanced antenna i just connect the open wire feeder directly to the atu, one leg of the feeder to the hot side and the other to the ground, and a common mode choke at the lcom point between atu and transceiver. This causes the SG to emit a carrier and triggers the AT to start ar130 tune cycle, sending the CW signal for as long as the tune cycle requires.

It works great that way. AT installation is simple.

This allows you quick trouble-free frequency changes. By design, it wants to end feed a random wire. I’ve ended up with a little black box that attaches to the top of the icoom and has a ‘tune’ button.

After some dramas rigging up an antenna mainly a height issuethe unit appears to work well. Use a antenna of at least 35 feet.

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Icom AT Antenna Tuner

Reviews Summary for Icom AT What it really means is “ground this input if you want it to start tuning”. There is also a connection to my Grumman aluminum canoe – just for good measure!

I have successfully interfaced it to my Kenwood TSS, making only minor, easily reversible modifications. Unacceptable in a marine HF system. I repair marine electronic equipment for a living, so I have the advantage of being very familiar with this unit.

Usually closer to 2. Just connect the control cable and antenna wire and go!

Icom AT130

Getting the AT to autotune when it sees a new carrier seems impossible. The versatile AT can be used with a variety of vessels, even smaller boats that cannot use a long antenna element.

Should be a interesting experiment. For example, the AT will match a 7 m 23 feet long wire antenna across the marine band in the 1.