Thanks. Posted in weewx-development group also. On Mon, 29 Jul 2019 at 16:11, Andrew Milner <[email protected]> wrote:
> I suspect there is some history involved. As far as I can make out, if > LOOP2 data were to be read then the packets are alternated with LOOP - > which would result in LOOP packets being received every 5 seconds instead > of every 2.5 seconds - perhaps that is why they are not being read!!! As > to whether they should or should not be why not make a posting on the > development group!! > > What I mean was that dewpoint and heatindex and other items which are > actually in LOOP2 packets I believe are software generated in weewx, and > not read from the station. > > > On Monday, 29 July 2019 13:24:00 UTC+3, Praveen Chandrasekaran wrote: >> >> Understand that weewx does not read LOOP2 packets. Did not get the part >> about " LOOP2 data is more than likely software generated by weewx" >> >> The LOOP2 packet format is specified in Davis protocol and it seems to be >> containing some data that WU is expecting. Shouldnt weewx be reading it >> then? Not sure if something changed in WU upload protocol as well. The >> earlier wiki link with upload protocol no longer works! So I am not sure >> what the protocol was before. >> >> On Mon, 29 Jul 2019 at 15:49, Andrew Milner <[email protected]> wrote: >> >>> slight correction - the LOOP2 data is more than likely software >>> generated by weewx >>> >>> On Monday, 29 July 2019 13:18:22 UTC+3, Andrew Milner wrote: >>>> >>>> I do not think weewx reads LOOP2 packets - so none of the LOOP2 data is >>>> available. >>>> >>>> >>>> >>>> On Monday, 29 July 2019 12:54:52 UTC+3, Praveen Chandrasekaran wrote: >>>>> >>>>> Looking at below: >>>>> >>>>> >>>>> https://feedback.weather.com/customer/en/portal/articles/2924682-pws-upload-protocol?b_id=17298 >>>>> >>>>> >>>>> WU expects wind speed average over 2 min average and 10 min gusts and >>>>> instantaneous speed. Did something change in this recently? Looking at >>>>> weewx code from restx.py I am not sure if weewx uploads all these? >>>>> >>>>> https://github.com/weewx/weewx/blob/master/bin/weewx/restx.py >>>>> >>>>> winddir - [0-360 instantaneous wind direction] >>>>> windspeedmph - [mph instantaneous wind speed] >>>>> windgustmph - [mph current wind gust, using software specific time period] >>>>> windgustdir - [0-360 using software specific time period] >>>>> windspdmph_avg2m - [mph 2 minute average wind speed mph] >>>>> winddir_avg2m - [0-360 2 minute average wind direction] >>>>> windgustmph_10m - [mph past 10 minutes wind gust mph ] >>>>> windgustdir_10m - [0-360 past 10 minutes wind gust direction] >>>>> >>>>> >>>>> On Mon, 29 Jul 2019 at 15:10, Praveen Chandrasekaran < >>>>> [email protected]> wrote: >>>>> >>>>>> Hmm. Will try. Before the WU overhaul it was showing them separately >>>>>> on the graph though. The gust value from LOOP2 seems to be 10 min wind >>>>>> gust >>>>>> while the wind speed sent out is the instantaneous wind speed from LOOP >>>>>> packet I believe? This may explain why wind speed and wind gust are same >>>>>> in >>>>>> graph. But then how does the table have different values. U never know >>>>>> with >>>>>> WU! :) >>>>>> >>>>>> As you mentioned will set debug=1 and observe sometime. >>>>>> >>>>>> On Mon, 29 Jul 2019 at 12:29, Andrew Milner <[email protected]> >>>>>> wrote: >>>>>> >>>>>>> I really do not see how you can have a meaningful gust value from >>>>>>> readings submitted every few seconds!! I see from the Davis comms >>>>>>> protocol >>>>>>> the gust values are in LOOP2 packets and the smallest appears to be a 2 >>>>>>> minute gust value. >>>>>>> >>>>>>> Setting debug=1 may shed more light on what is actually being sent >>>>>>> to WU >>>>>>> >>>>>>> >>>>>>> >>>>>>> On Monday, 29 July 2019 09:24:19 UTC+3, Praveen Chandrasekaran wrote: >>>>>>>> >>>>>>>> My weather station is Davis Vantage Vue. I believe it never emits >>>>>>>> partial packets. >>>>>>>> >>>>>>>> On Friday, 26 July 2019 15:02:51 UTC+5:30, Andrew Milner wrote: >>>>>>>>> >>>>>>>>> i doubt it very much. what weather station do you have? >>>>>>>>> changing the rf frequency changes the upload to wu interval but >>>>>>>>> the station will still be being polled as before. Does the station >>>>>>>>> provide >>>>>>>>> the gust value in the LOOP data? If not then the gust value is an >>>>>>>>> artificial one created by weewx from loop records wind speeds >>>>>>>>> received. If >>>>>>>>> your station provides partial packets as LOOP data you could always >>>>>>>>> try and >>>>>>>>> set the wu flag that set specifies windGust must be present before rf >>>>>>>>> is >>>>>>>>> uploaded >>>>>>>>> >>>>>>>>> On Friday, 26 July 2019 10:42:14 UTC+3, Praveen Chandrasekaran >>>>>>>>> wrote: >>>>>>>>>> >>>>>>>>>> If I set rtfreq to a higher value like 5 seconds, should that >>>>>>>>>> resolve the issue? >>>>>>>>>> >>>>>>>>>> On Fri, 26 Jul 2019 at 11:57, Andrew Milner <[email protected]> >>>>>>>>>> wrote: >>>>>>>>>> >>>>>>>>>>> if from rf it has no gusts it cannot graph them. non rf sites >>>>>>>>>>> will provide a gust value per archive interval. who knows what wu >>>>>>>>>>> do when >>>>>>>>>>> they receive both rf and archive record data!! The tables may well >>>>>>>>>>> create >>>>>>>>>>> an artificial gust value from rf speeds, but again who knows what >>>>>>>>>>> wu use to >>>>>>>>>>> create the graphs!! >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> On Friday, 26 July 2019 09:01:30 UTC+3, Praveen Chandrasekaran >>>>>>>>>>> wrote: >>>>>>>>>>>> >>>>>>>>>>>> The table somehow has it right. The graph alone is wrong. >>>>>>>>>>>> >>>>>>>>>>>> On Fri, 26 Jul 2019 at 11:29, Andrew Milner < >>>>>>>>>>>> [email protected]> wrote: >>>>>>>>>>>> >>>>>>>>>>>>> I would suspect WU ignore windgust on rapidfire because you >>>>>>>>>>>>> need a sustained period of I think 3 seconds for the gust to >>>>>>>>>>>>> count as a >>>>>>>>>>>>> gust in metereological definitions - and the rf interval is >>>>>>>>>>>>> probably too >>>>>>>>>>>>> short - so gust will always equal speed in rf situations. >>>>>>>>>>>>> >>>>>>>>>>>>> On Friday, 26 July 2019 08:26:49 UTC+3, Praveen Chandrasekaran >>>>>>>>>>>>> wrote: >>>>>>>>>>>>>> >>>>>>>>>>>>>> Related wxforum post: >>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>>> https://www.wxforum.net/index.php?topic=36611.msg386071#msg386071 >>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>>> On Friday, 26 July 2019 10:45:52 UTC+5:30, Praveen >>>>>>>>>>>>>> Chandrasekaran wrote: >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> Hi, >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> I am seeing that on stations with rapdifire, WU is not >>>>>>>>>>>>>>> differentiating wind speed and wind gust in graph correctly. >>>>>>>>>>>>>>> However in >>>>>>>>>>>>>>> stations without rapidfire it is fine. >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> Example my station with rapidfire: >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> https://www.wunderground.com/dashboard/pws/IBANGALO9 >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> Another station without rapidfire: >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> https://www.wunderground.com/dashboard/pws/IMUMBAI16 >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> Is this issue arising from weewx by any chance? >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> Regards, >>>>>>>>>>>>>>> Praveen >>>>>>>>>>>>>>> >>>>>>>>>>>>>> -- >>>>>>>>>>>>> You received this message because you are subscribed to a >>>>>>>>>>>>> topic in the Google Groups "weewx-user" group. >>>>>>>>>>>>> To unsubscribe from this topic, visit >>>>>>>>>>>>> https://groups.google.com/d/topic/weewx-user/E5uzJiv_ThY/unsubscribe >>>>>>>>>>>>> . >>>>>>>>>>>>> To unsubscribe from this group and all its topics, send an >>>>>>>>>>>>> email to [email protected]. >>>>>>>>>>>>> To view this discussion on the web visit >>>>>>>>>>>>> https://groups.google.com/d/msgid/weewx-user/51caf745-7385-40f9-ad35-81cfed29553e%40googlegroups.com >>>>>>>>>>>>> <https://groups.google.com/d/msgid/weewx-user/51caf745-7385-40f9-ad35-81cfed29553e%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>>>>>>>>> . >>>>>>>>>>>>> >>>>>>>>>>>> -- >>>>>>>>>>> You received this message because you are subscribed to a topic >>>>>>>>>>> in the Google Groups "weewx-user" group. >>>>>>>>>>> To unsubscribe from this topic, visit >>>>>>>>>>> https://groups.google.com/d/topic/weewx-user/E5uzJiv_ThY/unsubscribe >>>>>>>>>>> . >>>>>>>>>>> To unsubscribe from this group and all its topics, send an email >>>>>>>>>>> to [email protected]. >>>>>>>>>>> To view this discussion on the web visit >>>>>>>>>>> https://groups.google.com/d/msgid/weewx-user/e1c86274-2f2a-4005-a3e3-8ac0d9028b66%40googlegroups.com >>>>>>>>>>> <https://groups.google.com/d/msgid/weewx-user/e1c86274-2f2a-4005-a3e3-8ac0d9028b66%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>>>>>>> . >>>>>>>>>>> >>>>>>>>>> -- >>>>>>> You received this message because you are subscribed to a topic in >>>>>>> the Google Groups "weewx-user" group. >>>>>>> To unsubscribe from this topic, visit >>>>>>> https://groups.google.com/d/topic/weewx-user/E5uzJiv_ThY/unsubscribe >>>>>>> . >>>>>>> To unsubscribe from this group and all its topics, send an email to >>>>>>> [email protected]. >>>>>>> To view this discussion on the web visit >>>>>>> https://groups.google.com/d/msgid/weewx-user/7d2e07d8-d98a-41b3-a3b4-0c9cdcea6f25%40googlegroups.com >>>>>>> <https://groups.google.com/d/msgid/weewx-user/7d2e07d8-d98a-41b3-a3b4-0c9cdcea6f25%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>>> . >>>>>>> >>>>>> -- >>> You received this message because you are subscribed to a topic in the >>> Google Groups "weewx-user" group. >>> To unsubscribe from this topic, visit >>> https://groups.google.com/d/topic/weewx-user/E5uzJiv_ThY/unsubscribe. >>> To unsubscribe from this group and all its topics, send an email to >>> [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/weewx-user/38ff484c-9cde-46b0-90f0-d41857ccb061%40googlegroups.com >>> <https://groups.google.com/d/msgid/weewx-user/38ff484c-9cde-46b0-90f0-d41857ccb061%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- > You received this message because you are subscribed to a topic in the > Google Groups "weewx-user" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/weewx-user/E5uzJiv_ThY/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/30e453f1-ce9d-4b7b-a1a4-5af028c5f7a5%40googlegroups.com > <https://groups.google.com/d/msgid/weewx-user/30e453f1-ce9d-4b7b-a1a4-5af028c5f7a5%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. 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