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cwop altimeter bogus reading

Discussion and questions about Cumulus weather station software version 1. This section is the main place to get help with Cumulus 1 software developed by Steve Loft that ceased development in November 2014.
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steve
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Re: cwop altimeter bogus reading

Post by steve »

meadowlark wrote:Is this same algorithm for determining altimiter adjustment to CWOP the same for the Oregon Scientific?
Yes - basically it takes the 'station' pressure and corrects it by inserting that and your altitude into the standard formula. It does rather assume that your station barometer is reasonably accurate and the altitude that you have entered into Cumulus is accurate.

You can use this page to check the values that are being sent by Cumulus:

http://www.hochwarth.com/misc/AviationCalculator.html

"Altimeter pressure" as required by CWOP is the same as "QNH" on that page.
Steve
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