I would expect the davis (hardware) to be more accurate than weewx generated (software) - but how it compares to other stations depends on what type of station they are!!!
There is also a setting for store loop hi/lo or use record value for hi/lo values - loop would be more accurate but can result in unwanted spikes. On Sunday, 6 January 2019 12:17:43 UTC+2, Adam Harvey wrote: > > I'll jump into the config and change it to prefer software and see what > happens. > > Thanks. > > On Saturday, 5 January 2019 16:46:47 UTC+10, Andrew Milner wrote: >> >> may not have been that clear from Tom's response - but there are two main >> areas involoved here: >> 1. [StdWXCalculate] where all options should normally specify prefer >> hardware for vantage stations. if rainRate is set to prefer_software then >> weewx calculates the average rate over the archive period >> 2. [StdArchive] where record_generation is usually set to hardware. >> However if record_generation = software is set weewx calculates all values >> as averages over the archive period. >> >> I do not know what happens if rainRate is set as prefer_software but >> record_generation is set al hardware. ie I do not know if weewx overrides >> the hardware record values with its calculated rate or not. >> >> >> >> On Saturday, 5 January 2019 07:31:37 UTC+2, Adam Harvey wrote: >>> >>> Thanks, I will have another read. >>> >>> On Saturday, 5 January 2019 03:13:37 UTC+10, Thomas Keffer wrote: >>>> >>>> Reports are entirely generated from the database, which contains >>>> archive records. Where do the archive records come from? If you have >>>> selected hardware record generation (the default) then, in the case of the >>>> Vantage, they are downloaded from the console. The value of rain rate you >>>> are seeing is what was downloaded from the console. >>>> >>>> For more information, see the section *LOOP packets vs archive records >>>> <http://weewx.com/docs/customizing.htm#_________LOOP_packets_vs._archive_records_______>* >>>> in >>>> the Customizing Guide, and the section on Vantage stations >>>> <http://weewx.com/docs/hardware.htm#vantage_data62> in the Hardware >>>> Guide. >>>> >>>> As for the other stations, who knows where they are getting their >>>> values... >>>> >>>> -tk >>>> >>>> On Fri, Jan 4, 2019 at 1:49 AM Adam Harvey <[email protected]> wrote: >>>> >>>>> Hi, I have a raspberry pi with weewx installed. Outside I have a >>>>> Davis vantage vue, I have a connection from the davis console to the rpi. >>>>> >>>>> >>>>> All works well, except, the rain rates seem averaged out, I notice >>>>> some nearby stations seem to get higher instantaneous rates. >>>>> >>>>> I'm struggling to understand the loop vs archive, is that the change I >>>>> need to make? >>>>> >>>>> thanks in advance for any assistance. >>>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "weewx-user" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to [email protected]. >>>>> For more options, visit https://groups.google.com/d/optout. >>>>> >>>> -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
