[gps-talkusers] Threshold versus arrival distance
- From: Michael May <mikemay@xxxxxxxxxxxxxxxx>
- To: gps-talkusers@xxxxxxxxxxxxx
- Date: Tue, 24 Jul 2007 22:20:18 -0700
Hope,
The fifty feet number you refer to is the arrival distance. That has to do with
destination and other automatic things triggering when you are nearby.
Destination for example will trigger in a route when you are 1.25 times the
Arrival distance, meaning 62.5 feet.
You should normally leave that alone although I will change it when in using
GPS on an airplane in order to get nearby points of interest to trigger when
you are in a sparsely populated area.
The Threshold setting on the other hand defaults to 12 feet as Chris indicates.
That means that anything less than 12 feet will just be indicated as, "nearby."
If you want to hear lower distance numbers like 3 feet for your target
waypoints in a route, you can lower the threshold. Keep in mind that with
normal GPS inaccuracies, anything less than 12 feet is pretty phenomenal.
Mike
At 03:43 PM 7/24/2007, you wrote:
>Mary Ellen, I'm glad you mentioned the "thresh-hold". Could someone tell
>me what that's all about? Would it be ok to change it-- mine's currently
>set to 50 ft. I tought I couldn't change it because of accuracy issues.
>Any help would be greatly appreciated. Yeah, 4.0 is a wonderful uprade.
>I liked 3.5 but didn't in all honesty use it all that much because had
>difficulty memorizing the commands, but this 4.0 is so much better.
>Thanks so much to Mike May, Charles, and Chris (and of course sheila)
>for your wisdom and allowing us so much more freedom. I can't believe
>how accurate it is. I took it in a vehicle so could get used to the
>commands and.. It was absolutely amazeing
>
>
>Hope and guide dog, Beignet-- who wonders if her Mom will still rely on
>her now that she has that new talking gps.
>-----Original Message-----
>From: gps-talkusers-bounce@xxxxxxxxxxxxx
>[mailto:gps-talkusers-bounce@xxxxxxxxxxxxx] On Behalf Of Mary Ellen
>Earls
>Sent: Tuesday, July 24, 2007 5:05 PM
>To: gps-talkusers@xxxxxxxxxxxxx
>Subject: [gps-talkusers] You guys outdid yourselves!
>
>
>Well? The gps version 4.0 is on my pk and I just went up to mail a
>letter
>and man oh man oh man! This upgrade has me so spoiled after one use I
>don't
>know what I'll do if I had to go back to version 3.
>Just fabulous that is all there is to it and I love setting the
>threshold
>because it told me I was within 3 feet of the mailbox which is what I
>want
>that's for sure.
>And thank you Sheila for putting up with me and Thanks to Chris who did
>in
>10 minutes what I couldn't do in an hour and a half and that was get the
>gps
>on the flash card and up and running.
>Mary Ellen Earls
>
>
>
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