Garmin Quest Track Demo

Submitted: Saturday, Feb 03, 2007 at 21:24
ThreadID: 41939 Views:2123 Replies:2 FollowUps:5
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There would be some of you that wouldn't know the capabilities of the little Garmin Quest GPS when it comes to Track , I have done a little demo on the web, If you have the need to record your every move then this one don't miss much,

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Doug
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Reply By: Bonz (Vic) - Saturday, Feb 03, 2007 at 22:51

Saturday, Feb 03, 2007 at 22:51
Wow top speed of 107 km/h and only 48 times out of 3515 at 100km/h or more...amazing!
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AnswerID: 219553

Reply By: Member - Captain (WA) - Sunday, Feb 04, 2007 at 09:36

Sunday, Feb 04, 2007 at 09:36
Hi Doug,

Have you ever found errors in the log? I was checking my return trip from Pemberton on my Garmin GPS V and I have a few readings that are way out of whack.

For example I had a single speed reading of 138 km/hr, yet either side it read 101 km/hr and the time between readings was less than 10 seconds! - and all this while the cruise control was set for 100 km/hr!!! So i decided to check further and my best reading was 209 km/hr yet either side was 76 and 81 km/hr - as well as the leg course changing from 340 to 47 and back to 341 degrees in that time.

1111 29/12/2006 6:59:06 PM 102 m 116 m 0:00:02 209 km/h 47° true S34.51364 E115.99593

As this reading was only for 2 seconds, either I hit a time warp continuum or there is some inaccuracy in the track log. I once thought I could use this log to prove I wasn't speeding, but after seeing this well I would lose my license for 209 km/hr!!!

Anyway, my question is have you seen anomalies like this in your logs or is it simply that my GPS V has an older processor and at times doesn't keep up with all the functions it is doing?

Cheers

Captain

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Follow Up By: Robin - Sunday, Feb 04, 2007 at 09:51

Sunday, Feb 04, 2007 at 09:51
Most Errors Captain are a result of insufficent antenna field of view and not the device.

Robin Miller
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Follow Up By: Member - Captain (WA) - Sunday, Feb 04, 2007 at 10:02

Sunday, Feb 04, 2007 at 10:02
Hi Robin,

I have a remote antenna mounted on my snorkel and at the time I was travelling on the main road from Northcliffe-Pemberton.

I agree a loss of sat cover would give this type of thing, but I would not expect that to have occurred at this instance . Besides, I never received the GPS warning that I had lost sat cover. And given that I found several anomalies like this, it has certainly cast doubt on my presumption that one could try and use this if caught speeding.

Cheers

Captain
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Follow Up By: Robin - Sunday, Feb 04, 2007 at 10:29

Sunday, Feb 04, 2007 at 10:29
I have also observed that type of reading without satellite loss indication Captain.

Your snorkel sounds like a good spot. I believe that this however is the main reason and suspect you would have had more when internally mounted.

Never really got to the bottom of these things , but its feasible that radio signal
multi-path reflections can cause them.

I have verified that the "Planar" type of antenna mounted on a flat steel car roof causes less than the helical whip type I more commonly use.

Robin Miller
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Follow Up By: Member - Doug T (W.A) - Wednesday, Feb 07, 2007 at 18:36

Wednesday, Feb 07, 2007 at 18:36
Captain
I have read your query and the answers by others , Could be the old GPS your using too GPS V is going back a bit plus they don't have the acurate mapping we have now , I do know that the maximum speed has read way over what Ive done , it seems to acumilate if not zero'd , but No i have not noticed any errors in my logs.

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Follow Up By: Member - Captain (WA) - Wednesday, Feb 07, 2007 at 18:49

Wednesday, Feb 07, 2007 at 18:49
Hi Doug,

I have updated my maps to version 7. Actually, I used the second unlock code of the Nuvi 660 to upgraded my GPS V - a bit of a bonus!

I think it is some form of processing error and given its only 1 or 2 readings in 1,000 I am not too worried.

Cheers

Captain
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