[1000mp] What is Wrong with SWR Meter?

Tue, 4 Jun 2002 23:01:41 -0000

Steve,
you are not right. Maybe they are two different animals, but explain me
please, why yesterday I could work 100 Watts and SWR on internal meter was
right 1:1 and today it is 1:2 without auto tuner and 1:1.5 with it and power
is reduced to 70 Watts? I checked with 50 Ohm Dummy Load and it is the same:
reduced power, high SWR and high ALC reading. The low power is caused by
inproper ALC..... Do you agree? As I know, ALC is first line of defence,
when it is something wrong with amplifier it reduce power from transceiver.
I have checked it with CW tuning and FSK keying.
Pawel

----- Original Message -----
From: "Steve M" <[email protected]>
To: <[email protected]>
Sent: Tuesday, June 04, 2002 10:39 PM
Subject: Re: [1000mp] What is Wrong with SWR Meter?

> Now you are talking about ALC. Earlier you were talking about SWR. ALC and
> SWR are two different animals.Which is it? Is this key down cw, ssb, am,
fm
> or what? The alc reading has nothing to do with key down cw power with no
> alc line from an amp hooked up.
>     In key down cw I think the alc meter should read high with a good
> antenna.
>          Read the manual and decide if you are talking about swr or alc.
>
> Steve  wd0ct
>
> ----- Original Message -----
> From: "Pawel, SP7PS" <[email protected]>
> To: <[email protected]>
> Sent: Tuesday, June 04, 2002 1:15 PM
> Subject: Re: [1000mp] What is Wrong with SWR Meter?
>
>
> > Thanks for the suggestion, but it still doesn't work.
> > I found, that the power is reduced because of high ALC reading. I have
no
> > amplifier connected nor ALC used.
> > Why the transceiver shows high ALC with good antenna?
> >
> > Pawel
> >
> >
> > ----- Original Message -----
> > From: "Steve M" <[email protected]>
> > To: <[email protected]>
> > Sent: Tuesday, June 04, 2002 5:43 PM
> > Subject: Re: [1000mp] What is Wrong with SWR Meter?
> >
> >
> > > Pawel,
> > >
> > > When there is some swr on the line the impedance will change with line
> > > length. Meters at different points in the line may read diferent  even
> > > though swr doesn't change with line length. Many meters will say that
it
> > > does change with length.
> > >         If you are using an outboard tuner, adjust it so the MP meter
> > shows
> > > the most output power. There also should be a low swr reading at the
MP
> > with
> > > this adjustment. Disregard other swr meters down the line.  If you are
> not
> > > using an outboard tuner you can add jumpers to the line until the MP
is
> > > happy with the impedance it is seeing. If all this is confusing then
> just
> > > use the tuner in the MP.
> > >
> > > 73
> > > Steve  wd0ct
> > >
> > > ----- Original Message -----
> > > From: "Pawel, SP7PS" <[email protected]>
> > > To: "FT-1000MP Reflector" <[email protected]>
> > > Sent: Tuesday, June 04, 2002 10:57 AM
> > > Subject: [1000mp] What is Wrong with SWR Meter?
> > >
> > >
> > > > Hello MP Users,
> > > >
> > > > Would you please to help me with the following problem: my
FT-1000MP's
> > SWR
> > > > meter shows 1:2, but external SWR & Power Meter shows perfect match
of
> > the
> > > > antenna 1:1 - no reflected power... It is on all bands, sometimes MP
> > shows
> > > > SWR 1:3 while external meter tells it is 1:1.5 (on other antenna).
> > > > What is wrong with the transceiver? It also shows about 70 Watts
> output
> > > > though external power meter shows 100 Watts....
> > > >
> > > > Should I try to adjust any settings to make SWR meter work right?
> > > >
> > > > Awaiting your suggestions.
> > > > Best 73's
> > > > Pawel, SP7PS
> > > > SN7N in contests
> > > >
> > > >
> > > >
> > > >
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