John, 

Just wondering how the antenna project is coming along.  I hope you aren't
having too many difficulties.  

It's cold here and windy, but no snow.  Hope the weather holds out for you. 

73
Kris

-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of John Miller
Sent: Monday, January 02, 2012 10:55 AM
To: [log in to unmask]
Subject: Re: More power output readings--now doubting accuracy of LDG TW1

Every radio I've ever checked with the internal tuner, regardless of brand,
the power drops about that much with the internal tuner. It seemed a lot
better with the older motorized tuners, but with the relay tuners internal,
it seems to always drop about 15-20 watts depending on band.
----- Original Message -----
From: "Steve" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, January 02, 2012 10:37 AM
Subject: Re: More power output readings--now doubting accuracy of LDG TW1


> Tom,
>
> First, I think others have indicated that the TW1 isn't the most 
> accurate thing around.  I don't know that the internal meter in the 
> 590S will be any more accurate, but it can't be less.  I don't own a 
> TW-1 so I can't speak as to whether there is any facility to adjust 
> it.  As long as you are into intellectual pursuits, why not borrow 
> somebody's Bird Wattmeter, with the proper element installed and take 
> some measurements compared to your TW1.
>
> Second, I've noticed on my TS-2000, and I assume that the 590S will be 
> similar, that there are losses when using the internal antenna tuner.  
> My relative power is down about 14-20 watts when using the internal 
> tuner versus using an external tuner.  I think Bob, K8LR has had 
> similar results.
>
> Steve, K8SP
> ----- Original Message -----
> From: "Tom Behler" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Sunday, January 01, 2012 2:45 PM
> Subject: More power output readings--now doubting accuracy of LDG TW1
>
>
>> Hi, folks.
>>
>> I know, I know, it's just the professor in me, but this output power 
>> issue I've been dealing with is intellectually interesting, if 
>> nothing else.  I fully realize that 20 watts either way isn't going 
>> to make a difference in terms of who hears me, how well they hear me, 
>> etc., but I have to report on my latest set of output power readings 
>> this morning.
>>
>> First of all, When I use my Astron RS35 power supply, and take output 
>> power readings with the watt meter on the TS590, things now seem to 
>> be pretty stable at 100 watts output on either a resonant frequency 
>> for one of my antennas, or when using the TS590 auto-tuner.  
>> Obviously, the resonant frequency readings are going to be the  most 
>> revealing, so those are the ones I have the most faith in.
>>
>> What I still don't understand is why my LDG TW1 seems to be about 20 
>> watts off with its output power readings.  For now, I'm going to go 
>> with the readings the radio gives me, since the rig is what needs to 
>> be kept happy.
>>
>> Between Mike Duke  and Steve Forst, I do have some good instructions 
>> if I ever want to tweak the output voltage on the Astron RS35, but I 
>> think I'll hold off on doing that for a while until I see if things 
>> remain as stable as they are right now.
>>
>> Thanks to all for your your continued interest in, and help with this 
>> issue.
>>
>> 73 from Tom Behler: KB8TYJ