[1000mp] Why??

[Mike Schatzberg]

Sorry I miss spoke.  Of course I meant to say the stability of the standard
TCXO-4 in the new Mark V is four times better than the old standard MP. This
means you will stay closer to your intended operating frequency at all
times, in this case, on channel.

Of course, the stability of the standard TCXO-4 may easily be improved, by
providing temperature stability in the circuit.  There have been postings
here suggesting a mod to add a thermistor, to provide a temperature
stabilized reference oscillator to the MP.  Please see
http://www.k0to.us/index.htm.

73,

Mike
WB2AJI
----- Original Message ----- 
From: "Earl W Cunningham" <k6se at juno.com>
To: <dalej2 at mac.com>; <1000mp at mailman.qth.net>
Sent: Thursday, August 05, 2004 11:06 AM
Subject: Re: [1000mp] Why??


> Dale <dalej2 at mac.com> wrote:
>
> "You will see, that the Mark V, with its standard TCXO, has the same
> accuracy as the older TCXO-6 in the MP.  The newly available TCXO-6 for
> the Mark V, is twice as accurate as the standard TCXO-4 that the factory
> places in the Mark V radio."
> ==========
> The specs (i.e., "2.0 ppm", "0.5 ppm", etc.) are not measures of accuracy
> as Dale states.  They are measures of stability (amount of frequency
> drift of the oscillator with a change in temperature of one degree C).
>
> The accuracy of any oscillator TCXO-4, -6, or whatever) is determined by
> how closely you adjust its frequency.
>
> 73, de Earl, K6SE
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