HI,
What exactly is the
RF Applications P2000CW
that you mention? Is there something special about it?
73's
Howard #3
----- Original Message -----
From: "Steve" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, January 02, 2012 10:55 AM
Subject: Re: More power output readings--now doubting accuracy of LDG TW1
> RF Applications P2000CW
> ----- Original Message -----
> From: "Justin Mann" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Monday, January 02, 2012 10:41 AM
> Subject: Re: More power output readings--now doubting accuracy of LDG TW1
>
>
>> How are you checking per output without tw1
>>
>> Sent from my iPhone
>>
>> On Jan 2, 2012, at 9:37 AM, Steve <[log in to unmask]> wrote:
>>
>>> 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
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