Antennas free delivery possible on eligible purchases. Icom antenna tuner control cables provide power and control information between compatible icom transceivers and the specified automatic antenna tuner. Using the flex6300 tune button with an icom ah4 external tuner. Icom ah4 antenna tuner delta loop antenna duration. Testing the icom ah 4 antenna tuner interface duration. The ah 4 tuner by icom is a great, widerange, remotelyoperated tuner. Weather resistant construction, easily fitted in a variety of locations. Icom is an outstanding, comprehensive radio manufacturer that produces radio.
Click here to write a new message or comment for ah 4 note that the message is not related to any article click here to see the article list for ah 4. Oct 02, 2012 this is software only, one that can be installed on any internet enabled pc desktop or laptop. Unfortunately the icom manual is very sparse and only suggests a very basic way in which to use the tuner wire hanging out of output terminal, other end stuck into ground. Icom ah4 antenna tuners are specially designed to automatically tune a longwire antenna for portable or mobile hf50 mhz operation. Just read the brief manual and familiarize yourself with the atu. Notice the counterpoise running from the ah 4 in a circle around the tripod. The ah 4 matches your transceiver to an antenna more than 7 m23 ft long 3. Ah 2a with the icom ic735 transceiver, the tuner may also be used with any icom equipment which has an icom communica tion interface 31111 ciiv or civ system. No audio codec is performed in the idrp2000v, and thus the idrp2000v receives and transmits 4.
The k9eq ah 4 basic universal interface allows the use of the icom ah 4 and similar antenna tuners with most hf rigs. I suspect it will work fine with the 7300, but i will need to resort to the forced tone output by using rtty or am mode. I was very impressed with how well the tuner worked. Hello, and thank you for your interest in the k9eq ah 4 universal interface. Since the wire is insulated, it probably appears to be a slightly longer wire to the antenna tuner, which is an icom ah 4 sitting at foot of the antenna. Note that the ah 4 does not memorize a frequency which is normally tuned within 2. The almost random wire antenna kb6nus ham radio blog. Ah 4 thank you for purchasing the ah 4 automatic antenna tuner. Icom ah4 and 4m whip military antenna sp1wsr youtube. Icom ah 4 and ah 3 automatic antenna tuner connection to any radio both ah 3 and ah 4 are similar here is a redesign of connection digram of the icom icah3 and icah4 by 5b4aez. No adjustments are necessary, just connect the control and antenna cables. I have had rigs in the past with internal tuners and rest assured this ah4 is 10x better. I mounted the radio with the rear panel facing the passenger so that we could easily connect control and data cables to allow the passenger to operate using digital modes or connect a pc for automatic logging.
Icom ah 4 instruction manual by srmanuals is scanned from original paperback copy of the icom ah 4 instruction manual and are guaranteed for high quality scans. Icom ah4 automatic antenna tuner for hf mobile radioworld. The ah4 is intended to be used with certain latemodel icom radios, such as the ic706 and ic746. Im looking to build several antenna systems using the ah 4. The interface is designed to allow you to use the icom ah 4 remote automatic antenna tuner with virtually any hf rig. This paper describes the icom ah4 wide range antenna tuner. Please read these instructions thoroughly before installing and operating the ah 4. Short video showing what it takes to get the ah4 tuner from the box to operational status. It stores up to 45 memory channels with minimum swr settings to provide quick retuning. Replacing the original antenna connector with a so259 connector. Click here to view all the above modifications for ah 4 in one page. Icom antenna tuner control cables opc6 free shipping on.
Different frequencies are used for each transmission and reception in semiduplex mode. The icom ah 4 coupler covers all amateur bands from 3. Buy molex 4 pin tuner connector plug for icom ldg automatic antenna tuner atu 3 complete diy set. Icom is an outstanding, comprehensive radio manufacturer that produces radio communication equipment of all genres, from amateur radios to terrestrial, marine and avionics radios, as well as lte, wlan and satellite radios. It provides reliable matching of frequencies from 3.
Video demonstrating field use of the icom ah4 antenna tuner in a vertical antenna configuration. Once a frequency is memorized, the ah 4 tunes on that frequency in less than 1 sec. This service manual describes the latest service information for the ah4. Icom ah 4 antenna tuners are specially designed to automatically tune a longwire antenna for portable or mobile hf50 mhz operation.
In addition, it is com patible with the ic751 when used with an adapter. The ah 2a includes the controller unit and the tuner unit. There is no need to add additional hardware such as a radio tuner or card. I have used ah4 tuners with my icom rigs for many years. Its versatility, ease of use, and consistent reliability. Icom ah4 automatischer antennentuner 3,5 bis 54 mhz.
The ah4 matches your trans ceiver to an antenna more than 7 m23 ft long 3. I choose to mount it on the right side of the front passenger area on the lower kick panel. Ive heard the many praises of the icom ah 4 antenna tuner. Before using the program, make a backup copy of the original disk. The interface is designed to allow you to use the icom ah4 remote automatic antenna tuner with virtually any hf rig. I have very limited space so i put up a longwire one leg to the garage and one leg along the roof of the house to make almost an l shape with the feed at the center. We have tried utmost care to make sure completeness of manual. This coupler, like the sgc brand, are typically used at the feedpoint of the antenna, as opposed to a standard antenna tuner located just downstream of the transceiver. The ah 4 is intended to be used with certain latemodel icom. I started this project after i purchased an icom 706 and ah 4. It attempts to compensate for a rather sparse instruction manual by providing. Video showing how to setup a delta loop antenna with icoms ah4 automatic antenna tuner w the icom ic7200 hf radio. Do you have any tricks, modifications or constructions for homebrewed equipment that are not on mods.
There are several schematics for a manual interface for the ah4 tuner, but they all require a manual push of a start button. Not a good choice at all for a multiband mobile antenna, but it was what i. Always ground the tuner through the ground terminal. The combination of icom s one piece, diecast aluminum chassis and a full 75w gives you the most powerful 2m mobile transceiver in its class. Buy an icom ah4 end fed tuner auto coupler, attach your wire antenna wire to the hot end and run a short wire from ground side to a ground rod or counterpoise wire and enjoy. Compact yet durable, its designed for easy installation in a variety of locations, outdoors, on a back porch or in your vehicle. The ah 4 provides reliable matching of frequencies from 3. That is a bit of a pain, but usually works with any rfsensing tuner. If the wire needs to be 120 long and the ah4 has difficulty with that, a 4. Rsba1 version 2 fernbediensoftware zur netzwerksteuerung. Icom ah 4 auto tuner category is a curation of 2 web resources on, inside the icom ah 4 antenna coupler, icom ah 4 autotuner it really does the trick. After making a backup copy, keep the original disk in a safe place.
Mobile hf installation part 14 initial installation. The ah4 communicates with the radios using two control. Mar 12, 2007 heres how to get any length of wire over 60 feet long to work any band from 160 to 6 meters. How many different types of antenna setups can there be using the icom ah 4 antenna tuner. Electronics free delivery possible on eligible purchases. Long wirewhip, outdoor and ham guides tm pocket reference card. If only all tuner manufacturers would offer the icom ah 4 tuning interface.
The ah4 is an antenna couplertuner designed for long wire or whip type antennas. The ah 2 has only 8 memory locations, this is very little compared to todays manufactured devices such as the ah 4 or cg3000, but only this tuner can work with a 2. Also for many years i have hated dealing with the installation of them for fixed or portable operation, so i finally broke down and benched the tuner and started making it more friendly towards to use. Icom ah4 antenna tuners ah4 free shipping on most orders. The second hand icom ah 4 antenna tuner, the ah 4 is designed for use with all icom hf transceivers. Inside the icom ah4 antenna coupler archive 4x4 ham. I have used it successfully with an ic7600 and a yaesu ftdx3000. Aug 12, 20 the next step was to mount the ic7000 main unit. The icom ah4 automatic antenna tuner is designed to work with select.
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