I don't know if I'd trust either one.  What I was trying to explain in 
my previous note.  You could set the output at 50 watts in the service 
menu and set the radio so it reads 100 watts.  It is all relative.  Only 
thing I really trust, and only to a point is my seven thousand dolar 
service monitor, and I think it is a little scotch.
73
Butch
WA0VJR
Node 3148
Wallace, ks.


On Thu, 13 Dec 2012, 
Steve Dresser wrote:

> Tom,
>
> Regarding accuracy, I'd go with the 590's meter.  The 5% accuracy spec
> is probably best case, and not typical.
>
> Steve
>
>
> On 12/13/2012 06:57, Tom Behler wrote:
>> Hey, all.
>>
>> As I have addressed my most recent issue with the TS590 DC power cable, I
>> have noticed something interesting with my TW1 swr/watt meter.
>>
>> Actually, I thought I already knew this, but my most recent readings have
>> reminded me of the issue.
>>
>> Now, with both of my TS590 power cables, when the rig is set to 100 watts
>> output, I consistently get 100 watts as a power reading on the TS590's
>> internal meter.
>>
>> However, when using the LDG TW1 talking watt meter, my readings can vary
>> anywhere from 85 to 91 watts, with occasional dips as low as 81 watts.
>>
>> Keep in mind that all of these readings are taken on a resonant frequency
>> with my Alpha Delta DXCC antenna and an SWR of 1.0 to 1.  Also, I get the
>> same reading variations with the TW1 when using a dummy load.
>>
>> I checked the TW1 manual, and they clame an accuracy of plus or minus 5
>> percent on 14 mhz, but I think that is debatable.
>>
>> On the other hand, do we know how accurate the TS590's power meter is as
>> well?
>>
>> I'm not one to quibble over 10 or 15 watts, but I find the inconsistent
>> readings with the TW1 to be at least interesting.
>>
>> 73 from Tom Behler: KB8TYJ
>>
>>
>>
>
>