[time-nuts] GPS SDR (was: FE-.5680A trimming resolution)

[Daniel Schultz]

I found this homebrew GPS receiver project recently:

http://www.holmea.demon.co.uk/GPS/Main.htm

No custom specialized chips that are unavailable in small quantities, or which
will go obsolete in a few months. I think the best solution for the open
source GPS community is to design open source receivers with commodity parts
that won't be discontinued in the near future, or for which another commodity
part can be substituted if need be. Maybe somebody can extend this design with
a 2-bit ADC on the end (not me, too many projects here already...)

Dan Schultz N8FGV

>One of the projects did just this but then the
>integrated circuit or module that handled the
>RF and low level functions was discontinued.
>For a while they scavenged the hardware from
>other products that used it but then those dried
>up as well.

>I believe the best option now would be to find
>a ubiquitous and well documented receiver that
>provides low level access but I suspect they
>no longer exist.