The serial Earthmate will begin acquiring satellites even if the
BrailleNote is turned off.
Mike At 07:07 PM 4/24/2005, you wrote:
When I got my Earthmate the manual information told me that I should turn on the receiver, but the receiver won't begin to acquire satellites until the GPS application is loaded on the Braille Note. Is this correct? Will my serial Earthmate receiver acquire satellites whether my note taker is on or not?
Matt Roberts (blindbiker@xxxxxxxxx
-----Original Message----- From: gps-talkusers-bounce@xxxxxxxxxxxxx [mailto:gps-talkusers-bounce@xxxxxxxxxxxxx] On Behalf Of Michael May Sent: Friday, April 22, 2005 1:41 AM To: gps-talkusers@xxxxxxxxxxxxx Subject: [gps-talkusers] Re: e: Re: a little frustrating
Richard,
The PK sequence is different from other devices because of the way the Blue Logger receiver is accessed.
You are correct that the Magellan or the serial Earthmate receivers can be acquiring satellites without the BrailleNote even on or the GPS application loaded.
Mike At 03:07 PM 4/21/2005, you wrote: >Hi, Mike > >Is this configuration specific? The reason I ask is because, on a >daily basis, my sequence of actions seems to give different results! What I do is: > >1. Load up the GPS software whilst still inside a building. > >2. Switch off the BN V6,1. > >3. About 20 minutes later, once I've made one bus journey and I'm >outside waiting for the next, switch on the GPS receiver (it's a Magellan 310). > >4. Once on my second bus, switch on the BN. > >With this sequence, as soon as the BN is switched on, I get the >"acquired satellites" message. Therefore, it would seem that the GPS >is looking for and acquiring satellites independent of communication with the GPS software. > >Regards > >Richard Bartholomew > > > > > > ----- Original Message ----- > >From: Michael May <MikeMay@xxxxxxxxxxxxxxxx > >To: gps-talkusers@xxxxxxxxxxxxx > >Date: Wed, 20 Apr 2005 12:39:56 -0700 > >Subject: [gps-talkusers] Re: a little frustrating > > >Robert, > > >The receiver does not start looking for satellites until the GPS > >application menu is loaded. > >Mike > > > >At 06:43 AM 4/20/2005, you wrote: > >>Robert, > > >>It is best to turn the blue logger on outside when ever possible, > >>and turn it off when you are going into a building. It has to do > >>with the memory of the unit and it's last fix of sattlites and when > >>you have it on indoors it thinks you have had it off and traveled a > >>long distance of miles like 2 > or 3 > >>hundred, so it goes through a entire new sat area look mode for it > >>has no updated sat. memory of the area. > >>hth > > >>-----Original Message----- > >>From: gps-talkusers-bounce@xxxxxxxxxxxxx > >>[mailto:gps-talkusers-bounce@xxxxxxxxxxxxx] On Behalf Of Robert > >>Carter > >>Sent: Wednesday, April 20, 2005 06:11 > >>To: gps-talkusers@xxxxxxxxxxxxx > >>Subject: [gps-talkusers] Re: a little frustrating > > >>Hi, > > >>I am using the pk and Blue Logger. Does the receiver start looking > >>for satellites when it is turned on or does it only start searching > >>when the gps software is started? I have been turning my receiver on > >>inside using my light probe to make sure that it is on and then > >>walking outside and starting the gps software. Am I shooting myself > >>in the foot in terms of acquisition time by turning it on inside? > > >>Thanks, > > >>Robert Carter > > >>At 11:34 AM 4/19/2005, you wrote: > >>>Hello, > > >>>There are various reasons for your sluggish GPS receiver. Having > >>>to wait 20 minutes for a fix is uncommon, so if this problem > >>>persists, please call Sendero tech support. Also, I am not sure if > >>>you tried turning the GPS receiver on and off again once you were > >>>outside, sometimes that is all it takes. > > >>>Now for the possible culprits... > > >>>It is common for the GPS receiver to take a while when it is first > >>>acquiring in a new location. It remembers your last location, so > >>>when you turn it on in the new location it is surprised by the > >>>different latitudes and longitudes. It will take a while to > >>>confirm that you have indeed moved locations, it would rather give > >>>you no information than bad information. The same goes for when it > >>>has been turned on indoors, hasn't been used in a while, or if the > >>>battery has recently run out of juice. Here is a complete > >>>description of why this happens from Charles > >>>LaPierre: > > >>>"The GPS receiver keeps an internal almanac of where the satellites > >>>"should" be. This almanac is updated when the GPS receiver is > >>>linked to the satellites." > > >>>"When the unit is first turned on it starts looking where it > >>>"thinks" the satellites should be based on its current almanac. If > >>>after a while it can't find these satellites in the positions it > >>>thinks they should be then it switches to a mode called Cold start > >>>where it forgets its current almanac and starts searching for all > >>>satellites. This happens because as far as the receiver is > >>>concerned the satellites should be in a particular position at a > >>>particular time for this particular part of the country but they > >>>aren't so the receiver starts over from scratch as if you just > >>>moved the receiver half way around the planet, and it rebuilds it almanac of where the satellites are." > > >>>"Cold start or cold boot as they call it can take a while to obtain > >>>a GPS fix 5-10 minutes if you are lucky when out in an open area > >>>and the satellites are in a favorable geometry." > > >>>Hope that helps, > > >>>Kim Casey > >>>Sendero Group LLC > >>>888.757.6810 > > >>> At 05:13 PM 4/18/2005, you wrote: > >>>>Hi, > > >>>>I went for a walk during lunch today and I walked for 20 minutes > >>>>before gps 3.0 on my Voice Note running Keysoft 5.1 got a fix on > >>>>some > satellites. > > >>>>Does anyone know why this might have taken so long to acquire a > >>>>satellite fix? > > >>>>I just did a Voice Note warm reboot and then a reinstall of gps 3.0. > > >>>>I know I could upgrade to keysoft 6.x and gps 3.1 but I can't > >>>>afford to right now. > > >>>>Anyway, can anyone tell me what the problem could have been? I > >>>>was in a residential area with only a few trees and nowhere near > >>>>tall buildings and it was also a sunny day. > > >>>>Thanks > > > > >>>>-- > >>>>No virus found in this outgoing message. > >>>>Checked by AVG Anti-Virus. > >>>>Version: 7.0.308 / Virus Database: 266.9.13 - Release Date: > >>>>4/16/2005
