Re: Building a handheld DGPS

It would probably be much less expensive to buy a GPS 76 than it would
be to build a DGPS receiver esp. if your time is worth anything. It would
probably work better than DGPS too and be much less cumbersome to use.
--


Darrel Goheen
GPS@xxxxxxxxx
http://www.tvnav.com




"chuck" <burnettecharles@xxxxxxxxx> wrote in message
news:e45965b6-573a-41d4-9a3e-1d11e3010602@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hello,

I have an old Garmin 12XL. I can not buy a DGPS anymore for the
unit. I know I could just buy a new GPS with WAAS capabilites but I
dont want to spend the money. I would like to know if anyone out
there has schematics for building a small DGPS. I need this along
with info on what type of antenna I should use.

Thanks,
CB


.

Relevant Pages

  • Re: GBR21
    ... The GPS 120 is NOT a WAAS enabled GPS, ... You may not be able to tell the difference in accuracy between the GPS 120 with the GBR21 attached and working compared to the GPSMAP76CS when WAAS is in use. ... If you don't have a WAAS capable GPS, then the answer is that a DGPS equipped receiver will produce a smaller error that one no so equipped. ...
    (sci.geo.satellite-nav)
  • Re: rooftop antenna range
    ... I are not an expert in GPS. ... DGPS corrects on a per satellite basis and needs the raw data to do ... I completely ignored ham radio until about 1993. ... post mortem corrections available on the internet. ...
    (alt.internet.wireless)
  • Re: DGPS receiver
    ... Many receivers are still "DGSP ready." ... it to a GPS, the GPS will take advantage of the DGPS position corrections. ... the WAAS system can produce as ...
    (sci.geo.satellite-nav)
  • Re: Air and Water pressure measurements
    ... DGPS can get millimeter precision within small areas. ... I know that GPS favors horizontal accuracy over vertical, ... Some handheld GPS devices are cheating - if they think you're not moving, ...
    (sci.electronics.design)
  • Re: Building a handheld DGPS
    ... I used a couple of DGPS units with both Magellan and Garmin GPSs. ... you will need the appropriate antenna. ... frame which also mounted the external GPS and DGPS antenna on top of the two ... bought A new GPS with WAAS. ...
    (sci.geo.satellite-nav)