[ntp:questions] Re: reasonable price for gps time source (Garmin GPS 17-HVS?)

John Pettitt jpp at cloudview.com
Thu Dec 15 16:25:47 UTC 2005


Hal Murray wrote:
>>The GPS-18 LVC works well (about $80) - it works with the NMEA driver
>>and has a PPS output- I have mind on about 50' of cable on my roof -
>>it might work indoors if your roof does not have metallic foil in the
>>insulation (mine does).
> 
> 
> Mine is indoors.  It mostly works but fades out occasionally.
> 
> It works a lot better up high.  I haven't moved it around much
> to find the best location.
> 
> Looks like about 5% of the samples are bad.  I think rain/clouds
> interfere but I don't have any data to back that up.  (I think
> I have the raw data.  Might be fun to graph it and see if it
> correlates with the weather.)
> 
> 


Mine was fading out every time it rained but I found that it was
sitting in a puddle on the roof!  They don't work underwater.  Once I
moved it the problem went away :-)

John




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