[1000mp] AM Carrier setting

Thu, 29 Jan 2004 06:43:51 -0800 (PST)

I leave mine on all the time.

Keeps it stable.

--- Lew Paceley <[email protected]> wrote:
> The FT1000MP ALC seems to drift in any mode requiring non-full scale
> carrier power.  I run almost 100% CW at QRP power levels and even
> with
> the 10W menu item selected the rig still drifts upwards in power over
> the time span of 30 minutes to an hour.  It does eventually stabilize
> and stop drifting.  During the "warm up" period I have to constantly
> check and back-down the RF power control to stay at my target power
> level.
> 
> The root cause is not the RF power pot, tweaky though it seems.  It's
> somewhere else in the ALC system.
> 
> Just treat it like an old tube rig and let it warm up. ;-) 
> Seriously,
> it doesn't need to be transmitting, just "on".
> 
> 
>             72/73,
>             *Lew*
>              N5ZE
> 
> ----- Original Message -----
> From: "Bob Kemp" <[email protected]>
> To: <[email protected]>
> Sent: Thursday, January 29, 2004 7:09 AM
> Subject: Re: [1000mp] AM Carrier setting
> 
> 
> > Thanks Damon:
> > That's what's happening to me.
> > Bob
> >
> > Damon S Raphael MD (W7MD) wrote:
> > > I have never gone inside to adjust the pot but the carrier power
> out does
> > > tend to increase and decrease unexpectedly.  It is a royal
> pain.... as is
> > > the tiny Power knob with mega-backlash.  I try not to run more
> then 15 watts
> > > to drive the Henry 3K-Ultra (3CX1200D7 - original design) for
> about 250
> > > watts out.
> > >
> > > Damon, W7MD
> > >
> > > ----- Original Message -----
> > > From: "Bob Kemp" <[email protected]>
> > > To: "Yaesu FT1000" <[email protected]>
> > > Sent: Wednesday, January 28, 2004 5:16 PM
> > > Subject: [1000mp] AM Carrier setting
> > >
> > >
> > >
> > >>I've got a minor problem with the carrier setting on AM (r3011 I
> believe).
> > >>I've set this 3 times now and the power varies after I set it at
> a
> given
> > >>level (15 watts).  I've set this little trim pot at 15 watts
> three
> times
> > >
> > > now
> > >
> > >>and keying the rig right now, I get 10 watts or less out.!
> > >>Anyone else have wandering power levels on AM like this?
> > >>Bob
> > >>
> > >>_______________________________________________
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> > >
> > >
> > >
> > > _______________________________________________
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> >
> >
> > _______________________________________________
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> > 1000mp mailing list
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> 
> _______________________________________________
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> 1000mp mailing list
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=====
-
Harry - AB2PN

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