[gps-talkusers] Re: Heading unknown
- From: Chris Grabowski <chris@xxxxxxxxxxxxxxxx>
- To: gps-talkusers@xxxxxxxxxxxxx
- Date: Tue, 17 Jun 2008 14:09:13 -0400
Hello Lesley,
GPS is not a compass. you must be moving for around 30 seconds or
more for the GPS to obtained your heading.
This is a limitation of gps.
If you have a fix and are sitting in your room with a heading unknown
and spin around in circles for 3 days your heading will still be
unknown the next time you check.
Once you start to move in a specific direction you will get a heading.
If you can send me a replay file off-list so I can see exactly what
your gps receiver is sending your BrailleNote.
to do this press space with Q. You are prompted for the drive, then
the folder then the file name. Place it in a folder and a file that
you will remember.
after you go for your walk and your receiver has not given you a
heading for at least 5 minutes send the replay file to
chris@xxxxxxxxxxxxxxxx
Just a quick note about the force your heading feature ENTER with H BT
READ with H QT.
You would use this feature if you are sure the direction you are
going, this is temporary until your GPS takes over and gives you a
true heading.
This is so you can see where pois and things are relative to the
direction you should be going.
Here's an example.
My street runs east/west. I want to go to a store that is south west
of my house.
I turn on the GPS receiver walk to the end of my driveway and receive
heading unknown. (the receiver has not gained a heading because I have
not moved far enough, but I know I will be heading down my street
west.
I use the ENTER with H command to force the system to think I'm going
west. I then check my destination with the D key. My destination is
reported as 0.2 miles slight left.
If I had not forced the system it would report my destination as 0.2
miles South West.
Hope this example is clear why one would use the force GPS heading
feature.
Thanks
Chris
On Tue, 17 Jun 2008 12:08:18 -0500, "Mr. Leslie US1"
<les537@xxxxxxxxxxxxxxx> wrote:
>Chris and Steve,
>
>I tried on Chris' instruction but still display, "heading unknown".
>
>I tried Steve's but it did not change when I turned the different direction.
>The display shew the same one direction.
>
>Is it possible the reciever breaks the compass?
>
>Leslie--
>
>
>
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Chris Grabowski
- Customer Support and Product testing
Sendero Group
"The GPS company." Also, distributors of the mPower, PK, Victor
Stream, Voice Sense, KNFB Mobile Reader, Talks, Miniguide and ID Mate
Phone: 888-757-6810 EXT. 113
Email: chris@xxxxxxxxxxxxxxxx
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