[wxqc] Vantage Pro Barometer problems

Rex Pirkle k8cyj at arrl.net
Sat Apr 12 00:00:26 CDT 2008


Lew,
I didn't mean to infer that what Steve stated was incorrect -- I was
just trying to point out that the latest firmware revisions also modify
pressure reports -- my apologies to Steve for my poor wording.  He is
certainly right that, "having the latest firmware AND software are both
important in 
submitting good pressure data to CWOP".

For my datalogger version (=APRS), the software alone does not fix
reporting altimeter data; it's within a firmware change (item 3 below):


>From Davis link: 
<snip> 
"WeatherLink for APRS Datalogger Firmware - v 2.02

Firmware version 2.0.2
1. Report 2-minute average wind speed and 10-minute high wind speed
instead of 1-minute average wind speed and 5-minute high wind speed.
2. Modify Daylight Savings to reflect the new 2007 dates. (Requires the
latest console firmware v1.60.)
3. Report altimeter instead of current barometer value."
<snip> 

There are several Davis variations with differing implementations of the
changes -- depends on the hardware purchased and software used.    

Rex Pirkle 
AR863/K8CYJ-5 

----- Original Message ---

Rex,

Thanks for bringing up the firmware issue.  I checked and found my 
firmware was dated 12/1/06 although my unit is newer then that and in 
fact I had to swap my console mid-year and would have assumed I would 
have been given a newer firmware.

I am in the process of updating the firmware as I write this (with 
fingers crossed).

I can understand that there are some barometer corrections in the 
firmware...mainly ones due to spikes after updating the firmware and 
smoothing the barometer value but I didn't see any corrections for 
barometer value?

The fact is that Steve mentions software changes and I did find the 
optional settings in my WD software so there has to be some validity 
to what he is saying.  Seems Windy wouldn't have put the options in 
the CWOP setup if he didn't think you would need them?  I am just 
curious how changing them will affect what I am uploading before I
change them.

Thanks to both of you!

Lew




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