[gps-talkusers] Re: A general question

You need to have the state maps loaded for each state the plane is flying
over so if you are over a state and it is not in your map folder you will
not get any a or c commands, but you will get speed and alt. because that is
a sat to recerver only and does not need a map only a software to receiver
to sat connection.

> -----Original Message-----
> From: gps-talkusers-bounce@xxxxxxxxxxxxx [mailto:gps-talkusers-
> bounce@xxxxxxxxxxxxx] On Behalf Of Donald L. Roberts
> Sent: Thursday, May 29, 2008 09:44
> To: gps-talkusers@xxxxxxxxxxxxx
> Subject: [gps-talkusers] A general question
> 
> As a user of the Sendero product for less than two weeks along
> with my recently acquired Mpower BT, I am enjoying learning the
> uses of this marvelous toy.
> 
> I recently took it on a jet plane from Minneapolis to Sacramento
> which prompts me to ask this question.  I had the window seat on
> this flight and fastened the Holux 236 to my shirt collar, so it
> was relatively close to the window.  It took the Holux perhaps
> two minutes to acquire a fix, and signal quality was only fair
> with five satellites as I recall.  And now for the question.  Why
> did neither the A command nor the C command yield any
> information?  I do not recall verbatim the response, but the
> bottom line was that it could not seem to get a fix.  Conversely,
> I was able to determine both speed and altitude.  So the question
> is why could I not ascertain the nearest city or LL coordinates?
> I am certain there is a logical reason for this, but I am too new
> at this sort of thing to understand the fine points.
> 
> Thanks for any responses.
> 
> Don Roberts

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