[time-nuts] Russian HF Timing Service ?

Dana Whitlow k8yumdoober at gmail.com
Tue Aug 21 16:16:54 EDT 2018


Check out the wikpedia article at;
https://en.wikipedia.org/wiki/RBU_(radio_station)

It gives positions to 1 arc sec precision (roughly 100 ft, depending).

Trying those coordinates in Maps, I am taken to the approximate center of a
pentagonal
array, where there is a tower, mostly visible by its shadow.  The distance
from that tower
to the vertex to its west is about 1080 feet, where another tower's shadow
can be seen,
etc.  The pentagon visibly departs from perfection, but not by so much as
to fail jumping
right out at you.

So, if the Wiki info is honest and up to date, there's RBU for you, just
like that.

Dana




On Tue, Aug 21, 2018 at 1:56 PM Poul-Henning Kamp <phk at phk.freebsd.dk>
wrote:

> --------
> In message <CADHrwpeD0c=
> M_tYBCp9_k7KJUUx3nM0HGoVisVVsHZCZtz6xCA at mail.gmail.com>
> , Dana Whitlow writes:
>
> >Not having the coordinates in hand, all I can do is suggest using Google
> >Earth (or Maps)
> >and look for suitable antenna farm(s).
>
> The KiwiSDR's have a fancy new TDOA facility where you can geo-locate
> transmitters by receiving the signal from a set of the public
> KiwiSDR's around the world.
>
> See:
>
>
> https://www.rtl-sdr.com/kiwisdr-tdoa-direction-finding-now-freely-available-for-public-use/
>
> --
> Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
> phk at FreeBSD.ORG         | TCP/IP since RFC 956
> FreeBSD committer       | BSD since 4.3-tahoe
> Never attribute to malice what can adequately be explained by incompetence.
>


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