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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Give it a better than average ground. In addition, the AT has 8 convenient memories to store tuning information. There is also a connection to my Grumman aluminum canoe – just for good measure!

Should be a interesting experiment. If you want the technical details, send me a email. I normally turn my down to watts which is plenty. My only beef is the unit’s inability to tune a balanced antenna. After some dramas rigging up an antenna mainly a height issuethe unit appears to work well. At home I was feeding my balanced antenna with open-wire feeders directly from the AT with no choke on the coax and control line. No adjustments are necessary. This line needs to be connected to your radio in a way that causes it to go into the transmit mode, and produce about 10 – 15 watts of rf – NOT full TX power!

I purchased the unit while I was on holiday so I’d be forced to read through the manual for a few days before trying to hook it up. Now when I press the “voice” button that is normally used for the voice synthesizer option – not installed the tuner begins it process.

Retuning for a memorized frequency takes about 1. This unit works great with the following Icom radios, IC-mkii, mkiig and pro3. Quick tune-up Improved tuning performance…the tune-up time is less than 3 seconds in any frequency on an HF marine band. It has accompanied me to at least two different ships to be used with end-fed wire antennas. 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.

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Icom AT130

Normally 8 Volts, when less than 1 volt is recieved a tune cycle will commence”. This allows it to be conveniently installed near the antenna element base.

I’m having a devil of a time getting this tuner to talk with a Barrett marine HF radio. For example, the AT will match a 7 m 23 feet long wire antenna across the marine band in the 1.

If all antenna and ground requirements are met, the tuner will find a match pretty fast. Automatic tuning No manual tuning is needed. Email Ah130 You are not subscribed to this review.

No problem in tuning a long wire. Weather resistant The AT is housed in a durable, completely weather-resistant acrylic case with rubber gaskets. Just connect the control cable and antenna wire and go! Low power tune-up The AT emits very little output power just mW during the tuning process.

My main gripe is the manual. Use a antenna of at least 35 feet. Getting it to play with non – Icom radios is possible, but probably not in icm fully automatic sense. My Subscriptions Subscriptions Help. New to Ham Radio? As its a commercial unit and unlikely to be connected to a non-icom Ocom set, I can see why this has gone undetected.

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Reviews Summary for Icom AT Improved tuning performance…the tune-up time is less than 3 seconds in any frequency on an HF marine band. My system consists of a 75′ random wire, 3 – 6 ‘ copper ground rods, connected to the tuner with copper strap, and 5 ground radials of various lengths more to come. Getting the AT to autotune when it sees a new carrier seems impossible.

The main benefit of the ‘ is cost. What it really means is “ground this input if you want it to start tuning”. I repair marine electronic equipment for a living, so I have the advantage of being very familiar with this unit.

This allows you quick trouble-free frequency changes. The manual says words to the effect of “Voltage input to trigger the start of the tuning cycle.

The AT emits very little output power just mW during the tuning process. The versatile AT can be used with a variety of vessels, even smaller boats that cannot use a long antenna element.

ICOM AT – Watt HF Auto Wire Antenna Tuner – AT

Contact the site with comments or questions. It only takes a couple of watts of RF to figure out what to do.

The AT manual is very skimpy. Unacceptable in a marine HF system.