Yo Björn! On Mon, 9 Jan 2017 07:45:00 +0100 "Björn Gabrielsson" <[email protected]> wrote:
> >> My gut reaction is that "coupling" between the two antennas may
> >> have some effect on some of the variation.
>
> For high accuracy applications, I have been given the advice to keep
> GPS antenna separation much higher. 1 meter separation was suggested.
Clearly the Adafruit is not high accuracy. I have played with some
short baseline DGPS (cm level data) and not found any issue with antenna
separation.
> For comparing GPS receiver behavior its a cleaner setup to use a GPS
> signal splitter (or basic RF splitter with suitable DC-blocks).
Care to recommend any that have SMA connectors? I have found that
a 3dB difference in antenna can degrade my data quality, it would be
interesting to see how the 3dB loss of the splitter affects thins.
RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
[email protected] Tel:+1 541 382 8588
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