Steve,
I remember a lot of controversy about this one some years ago. Here is a
link to e-ham reviews and you will see that some swear by it and others
swear at it.
One of the reviewers refers to a QST article or review of the product. I
seem to remember that since all components were sealed in epoxy or
something, QST had it x-rayed or something to see what was inside. A lot of
stuff that didn't seem to be connected to anything else. When sawed open it
seems that it is mostly a 50 ohm resistor. Maybe just anexpensive dummy
load. If it seems too good to be true....
http://www.eham.net/reviews/detail/2842
73, Steve KW3A
----- Original Message -----
From: "Steve Dresser" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, February 14, 2008 10:10 AM
Subject: Re: LDG AT-1000Pro
> John,
>
> Last night, I stumbled upon something that looks even more interesting
> than
> the AT-1000Pro, and costs only a little more. A company called Maxxcom
> makes an auto-tuner with a frequency range from 100KHz to 250MHz.
> According
> to their specs, it can handle up to 1000watts, and tunes up in 1/1200 of a
> second. The most intriguing part is that there are no power cables, and
> it
> tunes in receive as well as transmit. I don't understand the theory of
> operation, but it's all explained in detail on their Web site,
> www.maxxcom.com. I've ordered their 1000 watt tuner, so I'll give you a
> full report when it arrives. Stay tuned.
>
> Steve
>
> ----- Original Message -----
> From: "John Miller" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Wednesday, February 13, 2008 22:28
> Subject: Re: LDG AT-1000Pro
>
>
>> I'm still waiting to put up my 6 meter antenna, I made a dipole and when
>> I
>> do my antenna work in the spring that will go up with a dedicated 40
>> meter
>> dipole and my cobra ultralite. Someday my 900 MHZ repeater, 900 MHZ beam,
>> and a ton of other projects I have piled up here will go up too but I'll
>> take it 1 at a time.
>> ----- Original Message -----
>> From: "Steve Dresser" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Wednesday, February 13, 2008 9:58 PM
>> Subject: Re: LDG AT-1000Pro
>>
>>
>>> Steve,
>>>
>>> Right now, I don't even have a 6 meter antenna, but since the radio has
>>> 6
>>> meters, I want that band in the tuner. I have an Ameratron *11-H, and
>>> haven't had any problems with it. I'm not as worried about hurting the
>>> amp
>>> as you might be since it's a tube amp, and tubes are a little more
>>> forgiving
>>> than transistors. I read some reviews on the AT-1000Pro, and two out of
>>> three were favorable. The one that was slightly less so (3 out of 5)
>>> was
>>> actually the best review, and his issue was that the tuner couldn't get
>>> the
>>> SWR all the way to 1:1. He also couldn't get his 160 meter dipole to
>>> tune
>>> up on other bands, so he finally bought a Palstar for almost twice the
>>> price. I can't justify spending nearly $1300 for a tuner, especially
>>> when
>>> the radio itself doesn't cost that much.
>>>
>>> Steve
>>>
>>> ----- Original Message -----
>>> From: "Steve Forst" <[log in to unmask]>
>>> To: <[log in to unmask]>
>>> Sent: Wednesday, February 13, 2008 21:39
>>> Subject: Re: LDG AT-1000Pro
>>>
>>>
>>>> Steve,
>>>>
>>>> Yeah, the QC at MFJ is always a question. It's one reason I went with
>>>> a
>>>> THP amp instead of Ameritron. I would also like 6 meters and even
>>>> though
>>>> the LDG's power is limited to something like 250 watts on 6, it is
>>>> still
>>>> nice to have that band in the tuner.
>>>>
>>>> Good luck with any future purchase.
>>>>
>>>> 73, Steve KW3A
>>>> ----- Original Message -----
>>>> From: "Steve Dresser" <[log in to unmask]>
>>>> To: <[log in to unmask]>
>>>> Sent: Wednesday, February 13, 2008 8:38 PM
>>>> Subject: Re: LDG AT-1000Pro
>>>>
>>>>
>>>>> Steve,
>>>>>
>>>>> You're right. The LDG manual specifically tells you to put the amp in
>>>>> stand-by while tuning. That's probably not a bad idea anyway just in
>>>>> case
>>>>> something goes wrong.
>>>>>
>>>>> Steve
>>>>>
>>>>> ----- Original Message -----
>>>>> From: "Steve Forst" <[log in to unmask]>
>>>>> To: <[log in to unmask]>
>>>>> Sent: Wednesday, February 13, 2008 19:27
>>>>> Subject: Re: LDG AT-1000Pro
>>>>>
>>>>>
>>>>>> As I re-read the manual for the LDG, it doesn't appear to have this
>>>>>> feature. Also it looks as though you are supposed to manually put
>>>>>> the
>>>>>> amp
>>>>>> into standby and tune at a low power setting on the LDG and then
>>>>>> increase
>>>>>> power and put amp into operate, all manually. It looks like the MFJ
>>>>>> does
>>>>>> all this with the touch of the tuner button on the rig ( of course
>>>>>> with
>>>>>> all
>>>>>> needed cables connected).
>>>>>>
>>>>>> I'll have to investigate a bit more before plunking down any money.
>>>>>> My
>>>>>> Palstar manual tuner works fine, but the amp is swr sensitive and
>>>>>> with
>>>>>> small bandwidth on 160 and 80 I do a lot of antenna tuning.
>>>>>>
>>>>>> 73, Steve KW3A
>>>>>> ----- Original Message -----
>>>>>> From: "John Miller" <[log in to unmask]>
>>>>>> To: <[log in to unmask]>
>>>>>> Sent: Wednesday, February 13, 2008 7:06 PM
>>>>>> Subject: Re: LDG AT-1000Pro
>>>>>>
>>>>>>
>>>>>>> I've never seen one that bypasses the amp for high SWR but I thought
>>>>>>> the
>>>>>>> LDG
>>>>>>> did say something about something like that in the manual.
>>>>>>> ----- Original Message -----
>>>>>>> From: "Steve Forst" <[log in to unmask]>
>>>>>>> To: <[log in to unmask]>
>>>>>>> Sent: Wednesday, February 13, 2008 5:57 PM
>>>>>>> Subject: Re: LDG AT-1000Pro
>>>>>>>
>>>>>>>
>>>>>>>> John,
>>>>>>>>
>>>>>>>> Will the LDG bypass the amp while tuning or in the case of high
>>>>>>>> swr?
>>>>>>>> I've
>>>>>>>> looked at specs and manuals for a number of high power auto tuners,
>>>>>>>> and
>>>>>>>> while I may have missed something somewhere, I don't recall seeing
>>>>>>>> it
>>>>>>>> on
>>>>>>>> other units.
>>>>>>>>
>>>>>>>> Other manufacturers may do something different, but it appears
>>>>>>>> that
>>>>>>>> in
>>>>>>>> the
>>>>>>>> 998 the amp keying line goes from rig to tuner and then to amp so
>>>>>>>> the
>>>>>>>> tuner can prevent the amp from being keyed during tune-up or in
>>>>>>>> the
>>>>>>>> event
>>>>>>>> of high swr.
>>>>>>>>
>>>>>>>> Tnx for the info.
>>>>>>>>
>>>>>>>> 73, Steve KW3A
>>>>>>>>
>>>>>>>>
>>>>>>>> ----- Original Message -----
>>>>>>>> From: "John Miller" <[log in to unmask]>
>>>>>>>> To: <[log in to unmask]>
>>>>>>>> Sent: Wednesday, February 13, 2008 4:01 PM
>>>>>>>> Subject: Re: LDG AT-1000Pro
>>>>>>>>
>>>>>>>>
>>>>>>>>> The LDG one will do all that too.
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>
>>
>>
>>
>
>
>
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