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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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I repair marine electronic equipment for a living, so I have the advantage of being very familiar with this unit. The versatile AT can be used with a variety of vessels, even smaller boats that cannot use a long antenna element.

If you want the technical details, send me a email. Should be a interesting experiment. If you have any questions, problems, or suggestions about Reviews, please email your Reviews Manager.

When tuning at310 same frequency twice, it is all over in less than a second. My only beef is the unit’s inability to tune a balanced antenna. I’ve ended up with a little black box that attaches to the top of the radio and has a ‘tune’ button.

AT installation is simple. In addition, the AT has 8 convenient memories to store tuning information. I have successfully interfaced it to my Kenwood TSS, making only minor, easily reversible modifications. Use a choke balun to reduce shield radiation. It only takes a couple of watts of RF to figure out what to do. Now when I press the “voice” button that is normally used for the voice synthesizer option – not installed the tuner icon it process.

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It works great that way. My system consists of a 75′ random wire, 3 – 6 ‘ copper ground rods, connected to the tuner with copper strap, and 5 icmo radials of various lengths more to come. No adjustments are necessary.

I’m having a devil of a time getting this tuner to talk with a Barrett marine HF radio. I recently got my brand new AT working. It appears it needs to also “be told” with a switch. By design, it wants to end feed a random wire. No problem in tuning a long wire.

AT-130 Downloads

No manual tuning is needed. This line needs to be connected to your radio in a way that causes it to go into the transmit mode, and produce icm 10 – 15 watts of rf – NOT full TX power! It seems to gloss over the requirements if it is not connected to an Icom HF set.

This unit works great with the following Icom radios, IC-mkii, mkiig and pro3. Email Subscription You are not subscribed to this review.

New to Ham Radio? Unacceptable in a marine HF system. 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 feed point between atu and transceiver.

Reviews Summary for Icom AT It seems to be a bit more rugged than my AH-4, which I toasted by trying to tune a 75 meter mobile whip on 40 meters. There is also a connection to my Grumman aluminum canoe – just for good measure! My Subscriptions Subscriptions Help. For example, the AT will match a 7 m 23 feet long wire antenna across icpm marine band in the 1. For a new frequency, it takes between 2 and 10 seconds. Quick tune-up Improved tuning performance…the tune-up time is less than 3 seconds in any frequency on an HF marine band.

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This causes the SG to emit a carrier and triggers the AT to start a tune cycle, sending the CW signal for as long as the tune cycle requires.

AT Downloads – Icom America

Retuning for a memorized frequency takes about 1. Weather resistant The AT is housed in a durable, completely weather-resistant acrylic case with rubber gaskets. This allows it to be conveniently installed near the antenna element base.

Just lately it stopped doing that. Improved tuning performance…the tune-up time is less than 3 seconds in any frequency on an HF marine band. Still, a bit of a let down. The AT manual is very skimpy.

As its a commercial unit and unlikely to be connected to a non-icom HF set, I can see why this has gone undetected. Normally 8 Volts, when less than 1 volt is recieved a tune cycle will commence”.