Hi Having played with both, there are differences in how the P and the T do things. Both do a better job on timing than single band modules do. The T has multiple pps outputs and *should* handle logging (at a fairly coarse resolution) an input pps on two inputs.
Both will handle external correction inputs via a serial port. The P does not do SBAS, but the T does. They now say that SBAS degrades timing on the T (as it does on all other receivers) so that may not be a plus. I have not checked the latest firmware on the T, but with the last version, the P actually delivered better timing performance. Indeed it was running defaults so SBAS likely running at the time. If you are trying to do some sort of master / slave setup, it’s best to dive into just what is involved with that task. For a system where both master and slave are mobile, the P is likely the better choice. Bob > On Jul 17, 2019, at 4:57 PM, Glen English VK1XX > <glenl...@pacificmedia.com.au> wrote: > > The F9T and F9P - are these interchangeable for stationary timing use and > stationary high performance position ? > > From how I read the datasheets, : > > >>the F9P has an internal RTK engine, and the F9T outputs the info RTCM etc > >>and that data can be run on a external RTK engine on a micro. > > The P provides 1.5m standalone positional accuracy compared to the T > standalone positional accuracy of 2.0m. Not much difference there.. > > >> the F9P and F9T have their timing pulse performance shown using different > >> description. > > The P has this as "RMS and 99%", while the T has this as '5nS','2.5ns diff' > > >>> Both can operate with companion receivers to enhance performance but I > >>> interpret this as only the P can do a (internal, companion mode) > >>> differential position fix and only the T can do a (internal companion > >>> mode) differential time fix. That is , internally without using an > >>> external engine. > > *** > > So it seems, if using an external RTL etc engines, the devices can do roughly > the same thing. > > How do others interpret this ? I want to do projects using positional for one > app, and timing for another, and would like to be able to acheive the deep > quantity discounts... > > glen > > > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.