[time-nuts] LTE Lite SkyTraq chip info
Dave Martindale
dave.martindale at gmail.com
Tue Nov 25 22:35:06 EST 2014
I spent a bit of time poking around the SkyTraq web site on the weekend. I
couldn't find a datasheet for the chip on the LTE-Lite - perhaps it's so
new that SkyTraq has not put together the datasheet yet.
Under "timing", they only list the Venus638LPx-T, which is a older (2011
copyright on the datasheet) 65-channel receiver. The LTE-Lite
documentation mentions 65 channels somewhere too, suggesting that the
LTE-Lite started out using this chip. Under navigation receivers, Skytraq
lists the newer (2013) Venus838FLPx with 167 channels. So I would assume
that the Venus838LPx-T-L used in the LTE-Lite is the same 167-channel
hardware with timing firmware, and that the LTE-Lite switched from the
638LPx-T to the 838LPx-T-L sometime during development.
- Dave
On Tue, Nov 25, 2014 at 5:12 PM, S. Jackson via time-nuts <
time-nuts at febo.com> wrote:
> Now that the cat is out of the bag - notice that on these boards we used
> the special -T timing version which is more than twice as expensive than
> the
> normal navigation version used by others.. I personally use the uBlox
> software because the Skytrack software had a habit of crashing itself and
> my
> computer from time to time..
>
>
> In a message dated 11/25/2014 14:02:41 Pacific Standard Time,
> paulswedb at gmail.com writes:
>
> Here is a link to a company that at least shares details of the SkyTraq
> venus 8 chip on the LTE-Lite. The actual skytraq sites is pretty useless.
>
>
> https://www.tindie.com/products/smokingresistor/venus838flpx-gps-breakout-bo
> ard/
>
> There is a program that will read the nema codes and such also.
> Have used it and its not better or worse then ublox. A bit of humor it
> only
> ever shows Asia for the ground track.
>
> The venus 8 seems to have a lot of capability. Not sure how to get to it,
> but the fact is for the LTE Lite its not needed. It has a single job to
> perform.
> It would be curious to obtain the board tindie sells because it supports
> all of the satellites. But have to say thats a project for another day
> wayyyy down the list.
> But at least you can have some further technical details for the system.
> Regards
> Paul
> WB8TSL
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