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Reviews For: LDG AT-11MP Autotuner

Category: Antenna Tuners/Matching Networks

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Review Summary For : LDG AT-11MP Autotuner
Reviews: 99MSRP: 239
Description:
Automatic antenna tuner kit
Product is not in production
More Info: http://www.ldgelectronics.com/
# last 180 days Avg. Rating last 180 days Total reviews Avg. overall rating
15994.7
N1KSN Rating: 2010-10-23
Good choice for Alinco DX-77T Time Owned: more than 12 months.
I bought one of these used along with a DX-77T some years ago. When I bought a second DX-77T (one of the last new ones in the USA) I tried using it with a newer LDG tuner. It didn't work, so I found a second used AT-11MP. (The LDG guy I spoke to said it must have been a subtle timing change in their software.) Both units have had the "newest" software installed.

This tuner does a great job with my 100 foot doublet that is fed with a 4:1 balun and 300 ohm twin lead. I wish it had latching relays, but that's a minor quibble. I just push the DX-77T Tune button and I get a fast match, which is remembered for the next time.

I am very satisfied with this tuner and expect to use it for several years to come.
K1YPB Rating: 2010-10-22
A really good tuner Time Owned: more than 12 months.
In simple words... this is a really good tuner. No fancy bells or whistles. Quality components, good construction... it just works! I sometimes wonder if the essence of this has not been lost on subsequent newer versions of this tuner.
N7QAX Rating: 2010-10-21
works great Time Owned: more than 12 months.
I bought the tuner new in 2002 or 2003, always worked well. I have used with three rig, ts-140 ft-100d and ic756pro3. I was a navy reservist and took the ft-100d and at-11mp with me to Kuwait in 2004. For a few weeks I used the rig and tuner on the Iraqi oil plateform (KAAOT) still the tuner well in a pretty rough environment( sea air, etc)
G7IGB Rating: 2010-02-01
Good ATU but noisy relays Time Owned: 0 to 3 months.
I've recently acquired an AT-11MP through an exchange deal and I'm very pleased with this older model LDG 'auto-tuner'. It matches a much wider range of antennas than my Z-100 and also has a built in cross needle SWR and power meter. It's a good size desktop unit and the solid metal case gives it a well made feel, especially compared to the Z-100. The toggle type switches are probably not the best idea for good ergonomics, but I find them easy to use and well spaced for my fingers.

My one complaint would be that the relays are very noisy when tuning, far noisier than the Z-100 which I've been using. When I first used it I thought that there must be a problem, as the clicking sound is definitely the loudest that I've heard on any 'auto-tuner'. It came with the V1.6 upgrade installed, so I can't really compare it to the older versions, but suffice to say that the memories work and it tunes up quickly on most bands.
5R8GQ Rating: 2009-03-18
Great Tuner, Easy Build Time Owned: more than 12 months.
I built this tuner from a kit, back when they were still available. Someone here said it was "For Experienced Builders". HUH?? Aside from winding some VERY simple toroids on large cores, all the assembly involves is stuffing two PC boards. Alignment was simple using another wattmeter. This tuner works very well and I use it mostly when operating potable. Even matches long wires without any sort of balun (if you have a good counterpoise or ground). I still have the chip it came with, never saw the need to upgrade. Have used this tuner 6-7 years and nary a problem with it ever. The only auto tuner I have seen that works better is the low power ATU in my Elecraft K2. THAT thing will match an 8 foot wire on 40m!
N2CYY Rating: 2008-03-07
Great Tuner /Great Service Time Owned: more than 12 months.
I had my AT-11MP for a couple of years (and was very satisfied with it's operation) when it suddenly gave up the ghost. I have to say the LDG Customer Service is SUPERB !!! It took less than 2 weeks for me to ship the tuner back, have LDG fix it & upgrade it, and have LDG ship it back to my QTH ! The service was very fast, the tuner fixed correctly, AND the repair was very reasonably priced, so much so, that I can't see how they could have covered there costs without losing money. It's a great tuner backed by great service. Way to Go LDG !
K5YF Rating: 2008-03-06
Great with V1.6 Time Owned: 3 to 6 months.
IF it has the v1.6 chip in it, this is one fast and accurate tuner. I used it almost every day for 3 months with chip v1.5 making a 30 foot vertical antenna do 80-10. Let's just say I liked it but knew it should do better. With the v1.6 chip it tunes much much much faster and is spot on accurate.

If you have the v1.5 chip, do yourself a favor and get the upgrade to v1.6. You will not be disappointed. It is a simple upgrade and comes with very good instructions.

It isn't quiet while tuning however. Not as loud as running over a marble with the vacuum, but similar sounding.

-Brandon
-N5JYK
W9JN Rating: 2008-02-03
Excellent product Time Owned: more than 12 months.
Hello, I purchased mine used 3 years back and upgraded it about 2 years ago. I use an IC-746 into a HB kw amp with no tuned input. It has worked 100% on all the various antennas I have. These include dipoles for 160-80 and 40 and a tri-bander for 20-15-10. I had at one time a full size loop for 160, and it was OK for that antenna as well. Since the amp has a wide range of PI net work I really do not use the Ten Tec 229A (no, I'm not selling it). I have had other MANUAL tuners between the driver and amp but will NOT go that route again. I enjoy the FAST accurate tune-up and cross needle. The up/down switches have been used occasionally but most often are not necessary. No negative issues to report. I'm happy with this unit. 73
N0FPE Rating: 2007-11-29
works flawless Time Owned: more than 12 months.
Had mine for abt 4 years. Did the upgrade a while back. Unit works flawless. Never had a problem with lockups. No RF in the shack helps this! I would not part with it for 2 times the price. even tunes the slinky to 60 meters!

AA9YP Rating: 2007-11-28
not that great Time Owned: more than 12 months.
This is probably the worst tuner I have ever had. Dont get me wrong, when it works it works well, but that is the problem, keeping it working.
I have sent this thing back to LDG 3 times and now I either need to send it back or chuck it in the trash. No I didnt abuse it, it abused itself. I know that the relays have a finite life but this thing eats them and then goes nuts. It does the same thing each and everytime it dies. I am serious, I probably would do better with a MFJ tuner.