Run a tuner between the amplifier in the antenna, then you won't need to use the one on the radio because the amplifier should have the correct impedance on it's input.

Sent from my iPhone this time 

> On Jan 4, 2016, at 5:30 PM, Richard B. McDonald <[log in to unmask]> wrote:
> 
> Hi Steve!
> 
> You zeroed-in right on my problem.  For my 6M J-pole (ANT2), I have a 4:1
> SWR at the range 50 - 51 MHZ, 3:1 51 - 52 MHZ, and less than 2:1 52 - 54
> MHZ.  So, I cannot run power from the amplifier to the 6M J-pole until I
> somehow deal with its SWR, nor can I use the 998 to tune it.  The "somehow"
> is really bumming me out and frustrating me because I *really* want to put
> like a kilowatt into the 6M J-pole : (
> 
> 73,
> Richard KK6MRH/AG 
> 
> -----Original Message-----
> From: For blind ham radio operators [mailto:[log in to unmask]]
> On Behalf Of Steve Forst
> Sent: Monday, January 04, 2016 4:04 PM
> To: [log in to unmask]
> Subject: Re: Using Both an External and the Internal Antenna Tuners on the
> Kenwood TS-2000
> 
> Richard,
> The setup you describe is correct.   As long as you have the interface 
> cable plugged into the  back of the radio, the internal tuner is disabled on
> ant 1.
> 
> On another note, the amp will do 6 meters, but the998 tuner won't.  I don't
> know how much 6 meter stuff you do, but if you want to run the amp on 6
> (assuming your antenna can handle it) you may have to juggle some things.
> 
> 73, Steve KW3A
> 
>> On 1/4/2016 6:41 PM, Richard B. McDonald wrote:
>> Hi!
>> 
>> 
>> 
>> Below under the "***" are copied the relevant sections of the 
>> TS-2000's manual.  Essentially, I have an external MFJ-998 auto tuner 
>> connected to an amplifier (Ameritron ALS-1306), which then connects to  
>> ANT1.  On ANT2, I have a 6M J-pole, which does not run through the 
>> amplifier.  Is my understanding of the below correct that1) if I am on 
>> ANT1 pressing the AT button on the TS-2000 engages the MFJ-998 auto 
>> tuner relative to the antenna connected to ANT1, and 2) if I am on 
>> ANT2 pressing the AT button engages the TS-2000's internal antenna 
>> tuner relative to whatever antenna is connected to ANT2 (my 6M J-pole?
>> 
>> 
>> 
>> 73,
>> 
>> Richard KK6MRH/AG
>> 
>> 
>> 
>> *  * *
>> 
>> 
>> 
>> Page 72 - [INTERNAL] AUTOMATIC ANTENNA TUNER: 2.Press [FUNC], 
>> [AT/ANT1/2] to select ANT 1 or ANT 2. If an external tuner is 
>> connected to the ANT 1 connector, select ANT 2 to use the internal 
>> antenna tuner. The internal antenna tuner is automatically bypassed if 
>> an external antenna tuner is connected to ANT 1.
>> 
>> 
>> 
>> Page 94 - [EXTERNAL] ANTENNA TUNER: Use the ANT 1 and AT [auto tuner 
>> control connection] connectors to connect an external antenna tuner. 
>> If you connect the external tuner to the ANT 2 connector, the external 
>> tuner will not function [by using the rig's tuner control, AT button].
>> 
>> 
>> 
>> 
>>