You are right, it was on the 2 thousand list, and you remember it right.
I may have the original message around somewhere. The problem we hd
was there were some of those tuners that did not work with Kenwood
radios with the mfj interface cable. Turned out to be a logic level
that needed to be changed in the 998, which was done on mine.
73
Butch
WA0VJR
Node 3148
Wallace, ks.
On Tue, 9
Dec 2014, Steve Forst wrote:
> Steve,
>
> I don't have this documented anywhere. I wish I had saved it when I saw
> it years ago on one of the lists. I think it was the TS-2000 list.
>
> My recollection is that it is a high value resistor (10k???) between the
> 2 middle pins of the 6 pin molex on the radio.
>
> I've never had need to do this, but my understanding is that this will
> disable the internal tuner on any of the Kenwood radios that use the 6
> hole molex.
>
> Of course, with the 590, you could set a pf key to do the TX tune thing.
>
> I would want to confirm this from another source before shoving
> resistors into little holes.
>
> 73, Steve KW3A
>
> On 12/9/2014 11:07 AM, Steve Dresser wrote:
>> Steve,l
>>
>> That resistor workaround sounds like a good idea for me since I never use
>> the internal tuner. Do you have more info on the workaround?
>>
>> Steve
>>
>> ----- Original Message -----
>> From: "Steve Forst" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: December 09, 2014 08:27
>> Subject: Re: Antenna Tuners
>>
>>
>>> Hi Dave,
>>>
>>> I am using the notorious MFJ-998. Had mine six and a half years with no
>>> issues or problems. Even back then, there were reports of QC
>>> problems, so I did something I would usually never do. I bought a demo
>>> unit from a dealer. I figured if it was going to fail, it would have
>>> failed in use at the dealers. It came with a very steep discount on
>>> price, but also had the full factory warranty. I took a gamble and
>>> for once in my life it paid off.
>>>
>>> With the optional cable, it interfaces to the 6 pin molex on the radio.
>>> Hitting the tune button on the radio puts the radio into a low power
>>> CW carrier, tunes the tuner, then returns the radio to original
>>> mode/power.
>>>
>>> Recently,with the Hex, and 30 meter GP, I only need it on 160-40 meters.
>>> The tuner won't load my dipole above 1.880, but no problem since
>>> all the action is lower. Probably need some antenna adjustment.
>>>
>>> It's rated at 1.5 kw, but I've only put 1 k into it. I think some on
>>> the list may be using the MFJ-993 (300 watts) and the MFJ-994 (600
>>> watts) with similar interface to the radio.
>>>
>>> The LDG 1000 is nice, but is limited to 1kw on SSB and 750 watts CW.
>>> It does cover 6 meters (the MFJ doesn't), but doesn't interface with the
>>> radio. You could set a pf key to do TX Tune: hit the pf key,the
>>> radio goes to cw low power, then hit the tune on the tuner to do the
>>> tune, then hit the pf key again to exit TX tune and revert to original
>>> mode/power.
>>>
>>> There is also a work around to disable the internal tuner with a
>>> resistor in the molex jack so you wouldn't have to use the pf key.
>>>
>>> If you've been a very good boy, maybe Santa would bring you a Palstar
>>> Auto. Instead of relays like the MFJ and LDG, the Palstar uses motors
>>> to turn real variable caps and a roller inductor. It's around $1,500
>>> and has menus and a display. Not sure how accessible it is. I don't
>>> really remember if I needed any sighted help getting the MFJ-998 up and
>>> working, but I've been on my own for the last 5 years and haven't
>>> needed to monkey with it.
>>>
>>>
>>> Hope this long winded discourse was of some help.
>>> You still have a few weeks to get your chimney swept out. You don't
>>> want soot on your new toy.
>>> 73, Steve KW3A
>>>
>>>
>>>
>>>
>>>
>>> On 12/9/2014 12:27 AM, Dave Basden wrote:
>>>> Hi Steve,
>>>>
>>>> I'm thinking of asking Santa for an automatic tuner. I see that the MFJ
>>>> 998 interfaces with Kenwood rigs, but the reviews on the MFJ 998 on Eham
>>>> suggest a real quality control problem. What are you using and how easy
>>>> is it to use with the TS-590?
>>>>
>>>> 73,
>>>>
>>>> Dave, W7OQ
>>>>
>>>>
>>>>
>>>>
>>>
>>
>>
>>
>
>
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