i thought they used a microchip or micro processer to control the radios
oscelater these days? I'm surprised they still use crystals.
At any rate, I am certain, that with modern processers, they already have
something in place to correct for any drift.
Also, and i might be totally off on this, when they talk about drift, don't
they usually mean perhaps a few hz, like no more then 10HZ either way?
And, even with the use of a crystal oscelator, as i said, the onboard
processer will likely adjust for any major drift anyway right.
I can see the usefullness of a t x o in an older radio that is subject to
noticeable drift but not with modern radios.
73
Colin, V A6BKX
----- Original Message -----
From: "Steve Dresser" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, February 08, 2008 7:11 PM
Subject: Re: ts480
> Tom,
>
> "TXO" refers to an oven which can be installed to keep the main oscillator
> crystal at a constant temperature. Before you go out and buy one, try
> running the radio in your motor home for a while and see if it drifts more
> than you want it to. If it does, buy the TXO option, but if you don't
> notice the drift, don't worry about it. Believe me, you'll know if you
need
> it.
>
> Steve
>
> ----- Original Message -----
> From: "T Behler" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Friday, February 08, 2008 19:37
> Subject: Re: ts480
>
>
> > Steve:
> >
> > I asked this question in my last post, but can you tell me about the TXO
> > for
> > the TS480.
> >
> > Since my new TS480 will eventually end up in our motor home which could
> > indeed be subject to considerable temperature fluctuations, especially
> > when
> > the motor home is sitting idle on warm summer days, maybe this is
> > something
> > I should think about.
> >
> > Thanks, and 73 from Tom Behler: KB8TYJ
> >
> > ----- Original Message -----
> > From: "Steve Dresser" <[log in to unmask]>
> > To: <[log in to unmask]>
> > Sent: Friday, February 08, 2008 11:01 AM
> > Subject: Re: ts480
> >
> >
> >> The only time you really need a TXO is when you're operating the radio
in
> >> a
> >> hostile environment where you have large temperature variations. For
> >> example, a car which stays outside in the winter time. If you only use
> >> the
> >> radio at home, you won't notice any difference with or without the TXO.
> >>
> >> Steve
> >>
> >> ----- Original Message -----
> >> From: "David R. Basden" <[log in to unmask]>
> >> To: <[log in to unmask]>
> >> Sent: Friday, February 08, 2008 10:34
> >> Subject: Re: ts480
> >>
> >>
> >>> The TS-480 is amazingly stable without the TXO. Unless you are super
> >>> fussy, you won't need it. I have a friend who bought one for his
> >>> TS-830 some years back and said he really couldn't detect the
> >>> improvement.
> >>>
> >>> At 01:16 PM 2/7/2008, you wrote:
> >>>>Hello;
> >>>>I ran across a reasonably priced ts480 used on the arrl site. It is
> >>>>long
> >>>>gone but I'm wondering how difficult it was to install the voice guide
> >>>>and
> >>>>filters? are they plug in?
> >>>>Also have folks found that they needed or wanted the tcxo extra for
the
> >>>>ts480?
> >>>>Richard
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>--
> >>>>No virus found in this incoming message.
> >>>>Checked by AVG Free Edition.
> >>>>Version: 7.5.516 / Virus Database: 269.19.21/1265 - Release Date:
> >>>>2/7/2008 11:17 AM
> >>>
> >>>
> >>>
> >>>
> >>
> >>
> >
> >
> >
> >
>
>
>
> --
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.5.516 / Virus Database: 269.19.21/1266 - Release Date: 2/8/2008
10:06 AM
>
>
|
