Mark, The archive interval controls a couple of things. Firstly it determines how often weeWX saves data to the database. If using every 30 minutes then weeWX will save a record to the database that covers that 30 minute period. For outside temperature say, weeWX will save the average outside temperature over that 30 minute period. Provided you have loop_hilo set True in weewx.conf (the default), any highs and lows that occur inside that 30 minute archive period will be captured. The catch is your plots are based on that 30 minute spaced archive data so that peak may not appear on your plots but it will appear as your daily high for example. As you reduce the archive period you have more chance of capturing these peaks in the archive and hence have them show in your plots. The downside is a 5 minute archive period puts 6 times as many records in your database as a 30 minute period. However, your db system should easily handle 5 minutes.
The archive period also controls how often reports are run, some folks want pages updated more often than every 30 minutes. Experience has shown that 5 minutes is a good tradeoff. You can go shorter but that can introduce some other issues such as system overload. At the end of the day it's a personal choice. If you do want to change it you will need to use wee_device to set the interval on your console. Refer to the wee_device se tips of the Utilities Guide (http://weewx.com/docs/hardware.htm#vantage_notes) Gary -- 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 weewx-user+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
