If you can, take the TW1 out of the circuit and see if the kkenwood meter 
changes after that.
----- Original Message ----- 
From: "Tom Behler" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, November 15, 2011 4:32 PM
Subject: TS590 internal watt and SWR meter VS LDG TW1


> Hi, all.
>
> As I have been working on tuning my newly-installed 160 meter half sloper
> antenna, I have noticed something interesting, when comparing the SWR's on
> 160 meters that are given to me by the TS590 internal meter, and the LDG 
> TW1
> talking watt meter.
>
> What I have noticed is that the TS590's meter gives me a 5 to 1 SWR at the
> top and bottom of the band, with the lowest SWR at about 2.0 to 1 around
> 18.300 or 18.400 MHZ.  Also, the TS590's internal auto-tuner seems to tune
> the antenna from the top to the bottom of the band with no problem.
>
> Interestingly, though, my TW1 starts out ok with farily similar readings 
> to
> those given by the TS590's internal meter, but as I get to the top of the
> band, its SWR readings shoot up to about 12 or 13 to 1, in comparison to 
> the
> 5 to 1 given by the TS590's internal meter.  All readings are taken with 
> the
> TS590 auto-tuner in the off position, and with an output power of
> approximately 30 watts.
>
> Would anyone have an explanation for these variations I am seeing?
>
> I do not seem to notice this much of a variation on other bands.
>
> As a side note, due to the fact that the MFJ 259B analyzer I am borrowing
> gets confused because of the A M broadcast station in my area, I honestly
> don't know what the resonant frequency of the antenna is, but I think I am
> reasonable in saying that it's probably not too far from 18.300 or 18.400
> MHZ.
>
> 73 from Tom Behler:  KB8TYJ