PSN-L Email List Message

Subject: Re: Oncore gps question
From: Undisclosed
Date: Wed, 02 Jan 2002 11:31:57 -0800

Hi Steve,,   the first thing is to let it sit for about 20 minutes or more,,,  it
takes a while for it to acquire for the first time in a new location!!!
I'm running the windows version of Oncore!
Did you run self test???    if it comes back all zeros, that means all is OK!
The two msb are for the antenna,,,   bit 15 is for antenna undercurrent, bit 14 is
for antenna over current.  bits 0 to 7 are for the 8 channels,, bit 8 is for 1 kHz
presence, bit 9 is for rom, bit 10 is for ram,,  etc.
BTW, I added about 10 meters of cable to the antenna without any apparent
problem.   I think it was UG-174 or RG-174??  it is 50 ohm, 1/8 inch cable!
I set up the antenna with the short lead and watched the signal level for awhile
with the antenna near the ceiling, then quickly added the 10 meter cable and
noticed little if any change in the signal levels!!  The weak signals (fringe
area) were about the same and the strong ones were still strong!
It did work in the house when I put the antenna near the ceiling and a little away
from the  wall, but eventually, I put it on top of the house to get a better view
of the sky as I am surrounded by trees and hills.   I often get 8 satellites, but
occasionally get only 4, when some slip behind the trees!    I also run a 10 meter
serial cable from the GPS to the computer.  It was a cable I used to hook up my
hand held GPS  (garmin Etrex) to the computer,  but I didn't like to leave my
handheld outside for extended periods of time.
Hope this helps and good luck,,,
  Stephen Mortensen
  PSN Station #55
  near Pilot Hill Ca
  38.828N  120.979W

steve hammond wrote:

> I finally got back to playing with the Oncore GPS after many months and
> have not been able to get it going. I plugged in the antenna and placed it
> largest flat-side down, connected a 12v bat to the GND and +Pwr term, the
> red light blinks, that's about it. I loaded the GPS DOS version Bob Smith
> described many months ago to the PSN and can obtain the vital product data
> from the device but it never finds a sender. I also put the device out back
> in the open and got the same results.
> Could somebody give me the basics of operation and refer me to any other
> software to drive the device?
> Regards, Steve Hammond


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Larry Cochrane <cochrane@..............>