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[aprssig] Re: Delorme LT-20 - Cart bought before the Horse

Christopher T. Day CTDay at lbl.gov
Thu Apr 13 16:33:51 UTC 2006


Good to know and sorry for any misinformation I may have issued. I'm
very new to this myself and haven't worked my way backwards through the
archives very far yet.


	Chris - AE6VK


-----Original Message-----
From: Stephen H. Smith [mailto:wa8lmf2 at aol.com] 
Sent: Thursday, April 13, 2006 9:24 AM
To: TAPR APRS Mailing List
Subject: [aprssig] Re: Delorme LT-20 - Cart bought before the Horse

CTDay at lbl.gov wrote:
> UI-view can connect to a GPS on any COM Port below COM9. Since NMEA
> output is simple ASCII messages, I'd guess your USB GPS receiver
creates
> a COM Port when you plug it into the computer and the driver gets
loaded
> [we're talking Windows here?] You can look up in the device manager -
> right click My Computer and select Manage/Device Manager - and look
for
> a COM Port that is only there when the GPS receiver is plugged in. Aim
> UI-view, or whatever, at that COM Port.
>
>
>    


Current Delorme mapping applications use the native USB interface of 
this Delorme GPS receiver directly.  A virtual COM port emulator IS NOT 
installed by default. 

You have to download and install the optional driver that intercepts the

USB interface and creates the simulated COM port,    from the Delorme 
website,    before non-Delorme applications can use this GPS.   



Further, restating a fact that has been repeated many, many, times 
before on this and other APRS-related lists:

USB-interfaced devices will ONLY WORK with a PC.  

There is NO WAY to use a USB-interfaced GPS with other devices such as a

Kenwood D700 or TH-D7, Tiny Track, KPC3 TNC, etc.     For these 
hardware-based applications, you MUST have a serial-interfaced GPS
device. 








Stephen H. Smith    wa8lmf (at) aol.com
EchoLink Node:      14400    [Think bottom of the 2M band]
Home Page:          http://wa8lmf.com


NEW!   JavAPRS Filter Port 14580 Guide
  http://webs.lanset.com/wa8lmf/aprs/JAVaprsFilters.htm

UI-View Misc Notes and FAQ
  http://webs.lanset.com/wa8lmf/aprs/UIview_Notes.htm

"APRS 101"  Explanation of APRS Path Selection & Digipeating
  http://webs.lanset.com/wa8lmf/DigiPaths

Updated "Rev G" APRS            http://webs.lanset.com/wa8lmf/aprs
Symbols Set for UI-View,
UIpoint and APRSplus:



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