disappointed, huge lag(3~4sec)

whoooever · Occasional Visitor Joined: Jun 30, 2005 Posts: 6

Just got my SysOnChip PlusII, and tried on my X50v.

There's a delay at about 3~4 sec between where I'm and where the GPS indicated I am. Causing me to miss 90% of the turn.

I'm wondering if other CF GPS is the same. I pick this one just because it receives highest review rating. It's 50% more expensive than others, but result is disappointed.

any idea?

lbendlin · Posted: Thu Jun 30, 2005 6:18 pm Post subject:

What program are you using?

Also, are you operating the device in XT mode?
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Lutz

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whoooever · Occasional Visitor Joined: Jun 30, 2005 Posts: 6

I used Destinator3 and Mapopolis, both with similar result.

WHat's is XT mode? How to switch?

lbendlin · Posted: Thu Jun 30, 2005 7:19 pm Post subject:

XT is trying to improve the positioning accuracy, but does do so at the cost of lower performance, or lag. I am pretty sure the user guide that came with your device covers the topic extensively.

you should be able to change it to ST mode with the utility program that came with your receiver.
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Lutz

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whoooever · Occasional Visitor Joined: Jun 30, 2005 Posts: 6

Thanks a lot!
I'll try when I get home.

whoooever · Occasional Visitor Joined: Jun 30, 2005 Posts: 6

I just quickly look through the manual from online, I didn;t see anything about "XT mode" or "ST mode". Are you talking about switch between NMEA and SIRF mode?

The sat viewer program is the only thing comes with the product CD. There's nothing to switch modes. What utility do I need?

lbendlin · Posted: Thu Jun 30, 2005 8:08 pm Post subject:

been here?

http://www.sysonchip.co.kr/eng/down/tec_down.htm

It doesn't actually seem to have XT mode- so strike that thought.
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Lutz

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whoooever · Occasional Visitor Joined: Jun 30, 2005 Posts: 6

yes.

Viewer for "SysOn GPS CF Plus II"? I have the one from the CD installed.

what do you mean "It doesn't actually seem to have XT mode"?

lbendlin · Posted: Thu Jun 30, 2005 8:33 pm Post subject:

this means your lag must have a different cause - I was wrong with my assumption.
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Lutz

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Savin · Occasional Visitor Joined: May 15, 2004 Posts: 33

HI

Has anyone found any resolution to this problem. I too have had a small amount of lag but not 4 seconds like that originally reported? Has changing the settings between sirf & Nmea made any difference?

Cheers
Darren

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