Actually, drift is up or down. An altimeter would be a better choice than a
compass.
Mike
----- Original Message -----
From: <n4lq@iglou.com>
To: "Duane Grotophorst" <n9dg@yahoo.com>; "Dan N7NMD" <n7nmd@arrl.net>;
<tentec@contesting.com>
Sent: Thursday, October 03, 2002 2:39 PM
Subject: Re: [TenTec] DSP vs. Compass
Maybe a compass isn't such a bad idea if it would indicate which
direction you are drifting.
-----Original Message-----
From: Duane Grotophorst <n9dg@yahoo.com>
To: Dan N7NMD <n7nmd@arrl.net>, tentec@contesting.com
To: <tentec@contesting.com>
Date: Thu, 3 Oct 2002 11:05:08 -0700 (PDT)
Subject: [TenTec] DSP vs. Compass
>
> --- Dan N7NMD <n7nmd@arrl.net> wrote:
>
> > All that's good and well to increase sales, but
> > given a choice, I would
> > *MUCH* rather have a lower ppm frequency accuracy
> > rating than a compass
> > or a 128 bit dsp chip. It's just more useful.
> >
>
> I must disagree; I take the "128bit" DSP comment to
> also mean a high number of A to D conversion bits as
> well. In that case the whole issue of ppm
> stability/accuracy can be made completely moot. If the
> DSP code is written effectively it can track whatever
> single-frequency signal of interest you desire. And if
> the 128bit DSP along with 64+ bits of A to D become a
> reality you could probably monitor/analyze/listen to
> dozens of discrete signals all at the same time and
> then watch all those 756Pro's, 1000MP xyz's etc weave
> about those few hertz relative to each other.
>
> Now as for the compass, I agree. Have to wonder about
> a 128 bit compass though, but then that's a topic for
> some other reflector.
>
> Duane
> N9DG
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