I have never heard anyone complain about the LDG tuners, good, reliable, can tune a wet noodle, and fairly priced..
Just a hit a button and its all tuned up.
I've been looking at a new ProII series LDG auto tuners lately and the only issue I see with them is the auto tuning threshold in auto mode is set between 1.7:1 and 3.0:1, which I'm not crazy about. The default is 2.0:1 as stated in their manual (below). So technically, unless there is a provision to change this, the tuner will never tune below 1.7:1 even if it's possible. WTF would they design it like that?
The "Manual Full Tune" section doesn't state any limitations, but if I were spending this amount of money on an auto tuner, I'd want better than 1.7:1 tuning, if it's possible, not just a threshold of performance pre-determined at the factory. I didn't know this until I read a thread on the QRZ forums, discussing this topic. Something to investigate further, if buying one of these LDG tuners.
From the LDG Manual:
"Automatic Tune SWR Threshold: When the AT-200/ 600/ 1000 ProII is in fully automatic tuning
mode, an automatic tuning cycle will begin any time RF is present and the SWR has exceeded a
set threshold. This threshold is user-programmable to any value between 1.7:1 and 3.0:1. To set
the automatic tune SWR threshold, press Func -> L Dn repeatedly (press Func, then L Dn;
Func, then L Dn, and so on...) to cycle through all the options. The SWR threshold will be
displayed on the SWR scale momentarily.
The default value of SWR threshold is 2.0:1. The following example shows setting the SWR
threshold to 1.7:1."
* I checked and this applies to the AT-200ProII, AT-600ProII, and AT1000ProII. For some reason, the AT100ProII specs are different, as shown below:
AT100ProII:
"Automatic Tune SWR Threshold: When the AT-100ProII is in fully automatic tuning
mode, an automatic tuning cycle will begin any time RF is present and the SWR has exceeded a
set threshold. This threshold is user-programmable to any value between 1.1:1 and 3.5:1. To set
the automatic tune SWR threshold, press Func -> L Dn repeatedly (press Func, then L Dn;
Func, then L Dn, and so on...) to cycle through all the options. The SWR threshold will be
displayed on the SWR scale momentarily.
The default value of SWR threshold is 2.0:1. The following example shows setting the SWR
threshold to 1.7:1."
I called LDG to make sure I'm interpreting this correctly. Left them a voice mail. We'll see if they return my call.