[aprssig] USB interface to d700a

Walden, Lee LWalden at ebmud.com
Thu Feb 2 11:38:12 EST 2006

Both the 276C and the 376C have two NEMA serial ports IN ADDITION to the
USB to PC cable for uploading and downloading data to the unit. In
addition a number of the new Nextel models have GPS built-in and can
output NEMA to external devices for tracking.

> -----Original Message-----
> From: aprssig-bounces at lists.tapr.org 
> [mailto:aprssig-bounces at lists.tapr.org] On Behalf Of Curt, WE7U
> Sent: Thursday, February 02, 2006 7:55 AM
> To: TAPR APRS Mailing List
> Subject: Re: [aprssig] USB interface to d700a
> On Thu, 2 Feb 2006, Michael J. Wolthuis wrote:
> > In looking at the new Garmin GPS units I see the majority 
> of them say 
> > PC/USB interface.  I assume this means they have a USB 
> interface and 
> > not serial only?  How can this be connected to the d700a 
> directly without a computer?
> You can't.  Fun with USB...
> Even something like a USB->Serial converter cannot be used in 
> this case.  Those are designed for the computer end of a USB 
> cable.  I know of no way to convert an end-device from USB to 
> serial, although perhaps somebody has created a more 
> intelligent device that can do this now.  If so, somebody on 
> here will enlighten us I'm sure.
> --
> Curt, WE7U.   APRS Client Comparisons: http://www.eskimo.com/~archer
> "Lotto:    A tax on people who are bad at math." -- unknown
> "Windows:  Microsoft's tax on computer illiterates." -- WE7U 
> "The world DOES revolve around me:  I picked the coordinate system!"
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