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Re: ✘TSIPv1 12 hour plot


From: Greg Troxel
Subject: Re: ✘TSIPv1 12 hour plot
Date: Sun, 13 Feb 2022 15:13:43 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (berkeley-unix)

"Gary E. Miller" <gem@rellim.com> writes:

> Seee attached 12 hour gpsprof plot from a new Trimble RES720 using the
> new TSIPv1 protocol.  The RES720 routinely uses 40 or more "satellites"
> from an indoor antenna, and start up alsmost instantly.  Sadly it has no
> Battery Back Ram (BBR) so you setill need to wait for the UTC offset to
> arrive in an Almanac subframe.
>
> I say "satellites" because this is a multifrequency part, L1 and L5,
> plus multi GNSS (GPS, GLONASS, Beidou, Galileo, etc.). gpsd counts 2
> signals from one satellite as two "used satellites".

Interesting to have an L1/L5 part but not L2.   I have never seen that
before.

roger the request to start testing.

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