On Fri, Sep 13, 2013 at 9:35 AM, Darren Addy <[email protected]> wrote:
> Pure conjecture on my part: Is it possible that this is what the unit > is doing that drains the batteries, even when "off"? Seems possible. > Or perhaps have 4 batteries charged and leave it on in the > car the afternoon before a nighttime shoot (changing batteries to > fresh ones just before the shoot). At least it gives me some things to > research and think about. The success of that may depend on whether it remembers its almanac and ephemeris data when the batteries are removed. BTW, another factor that can slow down initial GPS fixes if the receiver doesn't know where it is (like if you've moved hundreds of miles since it was last used). Phones have an advantage here as well, because they can get rough location from the cell tower. GPS chipsets have improved a lot over the years in time-to-first-fix, but it sounds like the chipset in the O-GPS1 is not the pinnacle of achievement here. [*] I previously just wrote "ephemeris", but I was actually thinking of almanac data, which is less precise but valid much longer. See: http://gpsinformation.net/main/almanac.txt -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
