Was playing around with this today. Turns out, when using Meteobridge, it doesn't really matter what settings you have on the Vue console, so long as the displayed pressure is correct, as Meteobridge uses that final corrected SLP as a starting place for its reporting.
When you have an older console firmware version that does not support LOOP2 packets, then you are right. If it supports LOOP2, Meteobridge takes the raw pressure from LOOP2 and starts computing from that which is much better than reconstruction station pressure from Vantage's sealevel and then going forward to compute altimeter pressure from that. Too make things annoying, LOOP2 does not contain all you need, so SW has to toggle between LOOP and LOOP2 requests. However, all this is a pain in the ... and I am happy it now works for you ok.
So, we've had some pretty wild swings in pressure the past week or so here (about 995mbar to 1035mbar). The past 36 hours especially, we have gone from about 1035mbar down to 1000mbar and still dropping fast!
I thought I had my barometer issue solved, but according to my CWOP analysis (and a couple other Davis stations near me), I am still showing much larger variations in pressure than they think I should be. It is
especially bad at the lowest and highest pressures I've seen (
+5mbar down around 995mbar, and
-10mbar up at about 1035mbar).
When things aren't changing much and are between about 1010mb and 1020mbar, I seem to be within the CWOP acceptable +/- 2mbar error.
To complicate matters, there is another station less than 3 miles away from me, also a Davis Vantage Vue but using different software (Cumulus), where our pressure charts on WU are nearly carbon copies of each other. However, his CWOP pressure chart follows the "analysis" line MUCH, MUCH more closely than mine!
This indicates to me that there is still something not quite right with how the Meteobridge software is reporting my "Altimeter" pressure to CWOP.
Without insight to the calculations, I have NO WAY of analyzing this any further, and am REALLY hoping for some additional help! I am at a complete loss as to what else that
I can do to fix the CWOP reporting without messing up my WU reports in the process. I don't think that I should have to choose one to be correct over the other, and I would really like to get to the bottom of this!
My gut is telling me that part of the problem is my high altitude (5,629ft. or 1,716m), and the larger pressure correction necessary for that.
PLEASE HELP!!!
Thanks in advance!!!