[time-nuts] GPS Antenna on Tower.

Didier Juges shalimr9 at gmail.com
Tue Jun 20 08:11:08 EDT 2017


If that is not time-nutty, I do not know what will :)

On Jun 20, 2017 7:04 AM, "jimlux" <jimlux at earthlink.net> wrote:

>
> for geodetic measurements, they drill a hole down to bedrock, and run a
> pipe down to anchor the antenna to the bedrock.
>
> "All holes shall be drilled straight enough so that PVC casing can be
> installed in the top 15.5 ft of each hole, and that the steel pipe can be
> freely lowered, not forced, for its entire 35 ft length."
>
> http://kb.unavco.org/kb/article/deep-drilled-braced-monument
> -overview-300.html
> http://www.scign.org/arch/sdb_monument.htm
>
>
> Google for Ken Hudnutt's or Frank Webb's papers
>
>
> or a 3m tall monument for a CORS station
>
> http://www.mwrtk.net/support_docs/corsinstallprocedures.pdf
>
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