You can also turn off the internal tuner assuming the rig will still 
transmit enough for a reading.  BTW, I defined the function kay on the 
front pannel to read swr and alc.  As i recall, menu 79 and 80 select or 
deffine the two function keys on the front pannel.  I set one of mint to 
202 which is voice 3 which reads swr and alc.  I'll include the whole 
list of functions in another message if it isn't to big for this list.
73
Butch
WA0VJR
Node 3148
Wallace, ks.


On 
Thu, 29 Sep 2011, Steve wrote:

> Tom,
>
> You can't I don't think get reliable readings with the power meter in that
> kind of configuration.  You have the power meter connected after the
> auto-tuner.
>
> Therefore, you still get a reading with a higher reflected power than you
> would normally expect.  The only way, I think, that you can get accurate
> readings with a rig with an internal tuner is to use the rig's own SWR
> meter.
>
> Steve, K8SP
>
>
> ----- Original Message -----
> From: "Tom Behler" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Wednesday, September 28, 2011 8:27 PM
> Subject: Strange Power Readings With LDG TW1
>
>
>> Hi, folks.
>>
>> Maybe I ought to go back to basic antennas 101 class, but I just found out
>> something with my Carolina Windom 160 compact that doesn't quite make
>> sense
>> to me.
>>
>> I am testing out the antenna to see if water got back into it after the
>> week
>> of rain we have had here, and I discovered some strange power readings
>> with
>> my LDG TW1 talking watt meter.
>>
>> Right now, my Carolina Windom, such as it is, seems to be resonant on the
>> lower end of 80 meters--right around 3.600 MHZ.
>>
>> As expected, then, when I go to the upper phone part of the band, say
>> around
>> 3.976 MHZ, my sWR rises dramatically to a blistering 6.0 to 1.
>> (ouch!!!!!!)
>>
>>
>> Interestingly, though, the auto tuner in the TS590 tunes the antenna,
>> which
>> was a bit of a surprise to me.
>>
>> I then took some  forward and reflected power readings with my TW1, and
>> was
>> told that the forward power was 102 watts, while my reflected power was 52
>> watts.
>>
>> Again, this is with the auto-tuner engaged.
>>
>> Can someone tell me what is going on here?
>>
>> To be honest, I'm still a bit hesitant to use the Carolina Windom, given
>> the
>> water problems I have had of late.
>>
>> Would this antenna be safe to use on the top part of 80 meters, since the
>> auto-tuner clearly tunes it, or am I just kidding myself here.
>>
>> And, could I safely use this antenna on the upper part of 75 meters with
>> my
>> Tentech 238A manual tuner and Ameritron
>> AL811H amplifier?
>>
>> I guess I'm now a bit gun shy.
>>
>> 73 from Tom Behler:  KB8TYJ
>
>