[time-nuts] Precise positions for GPSDOs

Rex rexa at sonic.net
Thu May 2 15:45:22 EDT 2013


PHK, the big pdf link in your sneak page is broken (gives 404). Can you 
fix that for us?

P.S., while you are there you could change "goory' to "gory".


On 5/2/2013 5:22 AM, Poul-Henning Kamp wrote:
> In message <CAPXiX5ricf=Ea0B=C2yR8iX+70SRtfJ9jeuTkgUQEhh5iZbN1A at mail.gmail.com>, Stewart Cobb writes:
>
>> The next best idea is to locate your antenna on Google Maps. [...]
> If your GPSDO's self-survey isn't better than the registration of
> Google Maps, you have different problems.
>
> In particular, be aware that the GPSDO does not need to know the
> antennas _actual_ position, it needs the _apperant_ position, which
> takes the reflection environment into account. (GW: "fresnel zone")
>
> This is a much better strategy:
>
> 	http://phk.freebsd.dk/raga/sneak/
>
>



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