[gpsd-users] Earthmate GPS

[IT1 Stuart Blake Tener, USNR]

List members,

Alrighty, I have to admit that it seems that the first part of my  
failures were do to bad batteries (though I got brand new ones to  
start with). Ah well, at any rate I got a power converter for the  
cigarette lighter adapter and the GPS is now fully powered!

I did have some problems getting version 3.6 to put the GPS into  
Zodiac or Earthmate mode, so I decided to compile and test 3.9, which  
worked far better.

xgps is now able to show a skyview and Xastir connected to gpsd via  
telnet and sent my coordinates to aprs.fi today. However, what  
interests me now is to get PPS ntp running. I have a USB to serial  
adapter that I am using and ran "statserial /dev/ttyUSB0" against it  
and it seemed like the DCD pin did not change at all.

What experiences have people had with these USB to Serial adapter  
cables with regard to getting DCD and CTS and that to go across them?

What kinds of things can I json the GPS to get it to demonstrate if it  
is sending PPS signals to Linux?

One thing I did notice is that the GPS is sent a string to see if it  
is an Earthmate Delorme (pre-2003) and instead (despite the fact that  
the GPS is a pre-2003 unit) is put into "Zodiac binary" mode. Is this  
of any significance? I mean I suppose I could compile gpsd with only  
the Delorme support but, ought I be worried about that?


Stuart


V/R,


--

IT1 Stuart Blake Tener, USNR, N3GWG (Extra), MROP
NR N-NC JTF EAST DET UIC 84245

Las Vegas, NV / Boulder, CO / Philadelphia, PA / Beverly Hills, CA

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