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Reviews Categories | Antenna Tuners | ICOM AH4 auto tuner Help

Reviews Summary for ICOM AH4 auto tuner
ICOM AH4  auto tuner Reviews: 139 Average rating: 4.8/5 MSRP: $319 street price 8/2000
Description: small mobile/base wire tuner 160-6 meters. Remote control with ICOM HF rigs
Product is in production.
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KE6K Rating: 5/5 Mar 1, 2015 22:21 Send this review to a friend
The single best tuner I've used  Time owned: more than 12 months
I bought the AH-4 to use with my new IC-706MkII in 2001. It was in my truck for 9 years running into a 102" whip and worked like a dream. I took it out when I sold the truck and forgot about it. I just hauled it out because I have moved into an HOA controlled area and can have antennas only as long as "they cannot be seen from the street or the neighbors back yards".
I now run a 60' 24 gauge speaker wire over the roof of my 2 story home (about 35' high) and use 5 counterpoises of various lengths. Works like a dream again. Only problem, as has been mentioned many times, is the 100 watt limit.
DAVER Rating: 5/5 Jan 24, 2015 14:02 Send this review to a friend
Perfect For Some (Like Me)  Time owned: more than 12 months
Everyone's covered this in pretty good detail. If you use an Icom radio without an amp... It's incredible. Also makes for some slick portable set ups as well. It's perfect for my set up using ground mounted verticals. I use it on a cut down fishing pole, about 8 inches above a ground radial plate with 20 radials. Works better than I could of hoped. While it will tune pretty much anything you put on there I try to use 1/4 verticals for the radiator made of stealthy wire. I figure the less "tuning" it does, the better.

Only beef I could have with the design is depending on how you plan to use it you may want to change the chords coming out of it. I needed longer chords, so made some changes. Not a design flaw, just me needed to adapt it to my installation.

If you're using an internal tuner to a non-optimal antenna outside... you will see a great improvement by switching over to using it at the feed point instead of in the shack. Can't recommend it enough, if it fits within your set-up (no amp, need multiband radiator, have decent grounding...etc.).

Easily the single best purchase for my compromise station (IC-7200, AH-4, Astron Linear for power)

N4SJW Rating: 5/5 Aug 29, 2014 19:19 Send this review to a friend
Another 5 star  Time owned: 0 to 3 months
Ditto to everything said below. I have a horizontal loop fed with 300 ohm ladder line and connected to the top and bottom of the AH-4 and works remarkably well. 160 to 6 in 3 seconds! I have it configured to the IC-7410 on Ant 1 and a dipole on Ant 2 so works both seamlessly. My only regret, not a fault of the tuner, is it won't work with amplifiers.

One picky thing, the antenna comes through the bottom of the top cover, and the control cable through the bottom of the base unit - this is a bit of a challenge to get it all bolted together and keep the water seal in the right place.
N4SJW Rating: 5/5 Aug 15, 2014 13:38 Send this review to a friend
Ditto  Time owned: 0 to 3 months
I agree with all of the positive reviews. I put up a new ~200ft horizontal loop and fed it with 300 ohm ladder line. Place the leads across antenna and ground and I now have a 160 to 6M antenna and rapid tuning . I'm working with an Icom IC-7410 and if you put the AH-4 on antenna 1 you can still use the internal tuner on antenna 2 jack. This thing is very fast and quiet. I had the case open for a few days as I was getting things configured and there are two indicator lights inside - wish they were visible on the external case. My only complaints: you have to make up the supplied coax; it is fed through the top case and the control cable via the bottom case; and the gasket is a bit difficult to deal with especially with the less than flexible coax hanging from it when putting the case together. Not major issues, just take your time.
KE5CVT Rating: 5/5 May 27, 2014 13:19 Send this review to a friend
Excellent!  Time owned: more than 12 months
I own two and use them in conjunction with Shakespeare AT-1011/U verticle military antennas of 12, 16 & 32 feet. Outstanding performance. As with any antenna/tuner setup, the lower the frequency you go, the more critical the counterpoise and the more copper you need to have in the air to better the performance. Make sure to maintain the watertight integrity along the O ring and you'll be OK. I hear stories of these being mounted on the masts of ships for 15-20 years with flawless service. If you want a plug and play solution where you can hit the PTT from 1.8-60 MHz and it works, the AH-4 is it.
AB3CN Rating: 5/5 May 10, 2014 19:21 Send this review to a friend
6 years and AOK  Time owned: more than 12 months
I've had this up just above the roof so the wire doesn't get scratched by the shingles. For six years. Took it down this fall to change out the coax and put it up as soon as the ice melted. Works great. Always. Used with IC-7000 and now with my new IC-7410. I was hesitant to buy it back then because a wire is 15 cents a foot and the tuner is $300. Seemed expensive. Now I know it wasn't. Rain or shine, the tuner has been one of my best purchases in ham radio so far.
VE6AGE Rating: 5/5 Jan 24, 2014 11:51 Send this review to a friend
Wow  Time owned: 0 to 3 months
Wow, it does a superb job with my Icom IC-718. Loading up a CB Shakespeare Big Stick on 10M until I get my Ultimax100 end-fed. Then it should load that one up real nice from 6M to 80M.
W0FEN Rating: 5/5 Jun 28, 2013 14:00 Send this review to a friend
Fantastic  Time owned: more than 12 months
I bought this along with a IC-706MKiig about 10 years ago. I have used the 706 mostly for 2M. This year for Field Day I would be traveling. I decided to install the 706 and AH4 mobile for FD. I had used the Hustler system about 30 years ago and it was very good. It did require stopping and retuning a resonator to QSY on a band for best performance or changing it for a band change. I lost the Hustler resonators and had to purchase a replacement. I decided on 'Ham-Stick' 20M antenna mounted to the trailer hitch using the AH4 for tuning. It works perfect!!! I am even able to tune it on Bands lower than 20M. I know the efficiency is down on the longer wavelengths but no stopping is involved. Fantastic! It interfaces perfectly with the 706. I am happy that I was able to work FD mobile.
N4EYZ Rating: 5/5 Jun 8, 2013 06:25 Send this review to a friend
Good dependable tuner  Time owned: more than 12 months
I bought my AH4 shortly after purchasing my 706G back in 2001. I ran the tuner mobile first in my personal truck (mounted vertically) and then in a company truck again mounted vertically. I took that truck up many many rough tower roads and that tuner got a lot of bouncing around. I ran the tuner into a 40 meter Hamstick mounted on the side of the truck tool bed. I worked 80 meters thru 6 daily for probably 4 years from that truck. I am retired now and the AH4 is mounted at the base of a Hustler 5BTV. Again with pretty good results considering my install. The tuner has always been dependable. My only problem has been during two different electrical storms I've taken a small hit thru the tuner cable to my 706. The tuner has never been harmed but the 706 didn't fare so well. Repaired both times by N1EQ and there is now protection between the two.
N4YX Rating: 5/5 Jun 4, 2013 05:34 Send this review to a friend
Two Thumbs Up!  Time owned: 0 to 3 months
I've had this tuner a few days using it with my mobile rig and various hamstick style mobile antennas. It's tuned everything I've thrown at it from the low end of 80 thru 6m. I've used hamstick ants for many years & now the AH-4 allows the convenience of changing bands/freqs from the rig instead of stop, get out, change hamstick, possibly tune hamstick's stinger ... etc. The only thing I found problematic was the delicate gasket. Doesn't want to stay in place during reassembly when mounted vertically.
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