[Elecraft] Noisy band changing

Sun Feb 3 00:33:00 2002

----- Original Message -----
From: Gary L Surrency <[email protected]>
To: <[email protected]>
Sent: Sunday, February 03, 2002 2:38 PM
Subject: Re: [Elecraft] Noisy band changing
Gary,
           Here's the 'power on' LCD display:-
           2.0     IF      1.02

Bill S. / VK2SOE

> OK. I'll check mine without the KAT2 and see if I can hear what you
are
> hearing.
>
> What MCU version (*exactly*)  is installed in your K2?Press any
button
> during power ON. The MCU version is on the left, IOC version on the
> right.
>
>
> Gary Surrency AB7MY
>
> On Sun, 3 Feb 2002 14:31:02 +1100 "Bill Scovell"
> <[email protected]> writes:
> > Hi Gary,
> >               I don't have the KAT2 installed in this Xcvr.
> > Regards
> >                 Bill Scovell / VK2SOE
> > ----- Original Message -----
> > From: Gary L Surrency <[email protected]>
> > To: <[email protected]>
> > Sent: Sunday, February 03, 2002 2:19 PM
> > Subject: Re: [Elecraft] Noisy band changing
> >
> >
> > > If the KAT2 atu is installed, it does emit a little digital
noise
> > during
> > > band changes before its microcontroller goes back to sleep. This
> > noise is
> > > heard mainly on the higher bands, but is generally not
noticeable
> > on
> > > bands below 17m.
> > >
> > >
> > > Gary Surrency AB7MY
> > >
> > > On Sun, 3 Feb 2002 14:10:31 +1100 "Bill Scovell"
> > > <[email protected]> writes:
> > > > Phil,
> > > >         Looks like we are the only ones to have observed this
> > > > operational aberration. In any event it's nice not to be
alone!
> > > > Tks for your response or I would have felt lonely.
> > > >
> > > > Bill Scovell / VK2SOE
> > > > ----- Original Message -----
> > > > From: Phil Wheeler <[email protected]>
> > > > To: Bill Scovell <[email protected]>
> > > > Cc: <[email protected]>
> > > > Sent: Saturday, February 02, 2002 3:53 PM
> > > > Subject: Re: [Elecraft] Noisy band changing
> > > >
> > > >
> > > > > Bill Scovell wrote:
> > > > >
> > > > > > Hi Gang,
> > > > > > I'd like to share a problem I am experiencing with K2/1946
> > with
> > > > latest
> > > > > > firmware revision.
> > > > > > I'm getting a brief but disconcerting burst of noise when
> > > > changing
> > > > > > bands 'downwards' from 24MHz to 21MHz and from 18MHz to
> > 14MHz.
> > > > When
> > > > > > going from 24 to 21 the noise is like a burst of static,
> > but
> > > > from
> > > > 18
> > > > > > to 14 the noise has a raw oscillatory character around
> > 500Hz.
> > > > In
> > > > both
> > > > > > cases the duration of the noise is less than half a
second.
> > > > >
> > > > >
> > > > >
> > > > > I think the "burst of noise" was introduced in the latest
> > > > firmware
> > > > ..
> > > > > and relates to extending the life of the relays.  This from
> > > > memory
> > > > of a
> > > > > message.  I definitely hear it from time to time.
> > > > >
> > > > > Phil
> > > > >
> > > > >
> > > >
> > > > _______________________________________________
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> > > >
> > >
> > >
> > > Gary Surrency AB7MY
> > > ________________________________________________________________
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> > > _______________________________________________
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> > >
> >
> >
>
>
> Gary Surrency AB7MY
> ________________________________________________________________
> GET INTERNET ACCESS FROM JUNO!
> Juno offers FREE or PREMIUM Internet access for less!
> Join Juno today!  For your FREE software, visit:
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>