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Subject:
From:
Colin McDonald <[log in to unmask]>
Reply To:
For blind ham radio operators <[log in to unmask]>
Date:
Wed, 15 Nov 2006 01:51:25 -0700
Content-Type:
text/plain
Parts/Attachments:
text/plain (83 lines)
Hi all"
The internal auto tuner of a radio will not effect the SWR reading on the
tw1.
The tw1 is in the chain between the tuner and the antenna, thus making any
changes the tuner makes invisible to the tw1.
If the tuner was after the meter, that is, between the meter and the
antenna, then it would show changes.
If there is any kind of slight change to swr on the meter after using the
internal tuner, its due to an impedance alteration, not a tuner change.
73
Colin, V A6BKX
----- Original Message ----- 
From: "Louis Kim Kline" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, November 14, 2006 6:04 PM
Subject: Re: TW1 Inconsistancy


> Hi.
>
> Are you using an auto tuner with this setup?  I've noticed in the past
that
> these tuners don't always tune the same way on two successive runs, and
> that can very well influence both power and SWR readings.  You might be
> blaming the wrong device!
>
> 73, de Lou K2LKK
>
>
>
> At 01:42 PM 11/14/2006 +0200, you wrote:
> >Ok my apologies
> >
> >I do not always get the same readings for the forward power reflected
> >power, and swr twice.  For example I test 1 frequency on a particular
> >power setting, and move on to some other frequencies.  However if I get
> >back to, say the first I've tested, the read-out is not what it was the
> >first time.  I hope this helps.
> >
> >Kallie Swanepoel
> >http://www.kallieswanepoel.co.za
> >
> >
> >-----Original Message-----
> >From: For blind ham radio operators
> >[mailto:[log in to unmask]] On Behalf Of Colin McDonald
> >Sent: 14 November 2006 10:46
> >To: [log in to unmask]
> >Subject: Re: TW1 Inconsistancy
> >
> >
> >what sort of inconsistancies are you getting with the tw1?
> >Just saying you get inconsistancies and not explaining doesn't allow
> >anyone to really give you hints or anything as to what the problem may
> >be, or if its just a function of the meter. Running the tw1 on the same
> >power supply shouldn't be an issue unless you have some kind of ground
> >loop issue or RF getting into the meter, but that is unlikely. 73 Colin,
> >V A6BKX
> >----- Original Message -----
> >From: "Kallie Swanepoel" <[log in to unmask]>
> >To: <[log in to unmask]>
> >Sent: Monday, November 13, 2006 9:47 PM
> >Subject: TW1 Inconsistancy
> >
> >
> > > Hi All
> > >
> > > I purchased a tw1 this week end, and find it a bit inconsistant with
> > > the read-outs.  I connected it to the same power supply than I have my
> >
> > > TS2000 on. Would that have any influence?  What power supply should I
> > > use, or should I use a battery?
> > >
> > > Kallie Swanepoel
> > > http://www.kallieswanepoel.co.za/
>
> Louis Kim Kline
> A.R.S. K2LKK
> Home e-mail:  [log in to unmask]
> Work e-mail:  [log in to unmask]
> Work Telephone:  (585) 697-5753
>

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