Re: Why are some GPSs so much better than others?

From: Carsten Kurz (audiovisual_at_t-online.de)
Date: 08/04/04 

Date: Wed, 04 Aug 2004 23:26:23 +0200

HH schrieb:
>
> Actually, I wonder why latest Garmin Legend C and Vista C only have 12
> channels. In Calgary, probably because of the altitude, I can see 12
> satellites about 90% of time and that's not counting the two WAAS
> satellites. I just wish that I can track 14 satellites like the new
> Magellan. Tracking 16 satellites is even better.

Garmin could easily expand it's hardware to more than 12 channels. They
just think it's not worth it currently. Even with the current
constellation, 10+2 is more than enough. Using more channels has some
drawbacks. Don't you wonder why even a very basic 14ch explorist 100
will only get 12hrs runtime from a set of AAs, while the current 12ch
Garmins can do 20-35hrs, with an autorouting capable processor, plenty
of memory, colour display, USB, etc.? I guess Garmin is smarter than
some people think ...

Having more channels does not increase accuracy.

- Carsten 

-- 
Audio Visual Systems                          fon: +49 (0)2234 601886
Carsten Kurz                                  fax: +49 (0)2234 601887
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50259 Pulheim / Germany               WGS84:N50°57'50.2" E06°47'28.5"

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