wviewweather.com

Brett at Davis had this to say about negative values for the CRC field, and large increases in CRC errors:

The "negative" values come because while the number on the console is an
unsi ...

Davis had this to say:

RXCHECK is the same on the Envoy. The last field is the CRC error count. 7FFF is no data or a bad sensor. Basically no temp info.

I asked further about negative values a ...

The only thing Davis had to say was to suggest that there's some 900MHz interference in the area. Doesn't sound all that plausible to me. I occasionally see bad archive records for hours and hours, ...

Well, still no word from Davis. Also, another observation. As strange as it seems, the wind has been calm here most of the day, and I've received nothing but bad archive records for the last 5 hours ...

Yep, concerns me too. Doesn't make much sense. I sent a note to Davis support - we'll see if they get back to me. Do you think it's possible that the RXCHECK fields have a slightly different defini ...

Stuffed some debug messages into vpinterface-be.c to look at how the packet receive percentages are calculated. Here's a result chunk that shows one of the poor spikes. There are three calculations ...

Yeah, I'm familiar with RF and the usable percentage values - "Unusable" was a poor choice of words, sorry. Just pointing out that the reception spikes don't appear to be the cause of the bad archive ...

Yep, I'm familiar with the rxcheck graph, and first turned to that to begin to address the problem. What I find there is a very distinct pattern of good reception (90%+)followed by a spike of poor re ...

Wview 1.9.1, SLAB_USBtoUART driver on MacOS 10.3.9 talking to USB Weather Envoy, listening to VP signal off the Davis wireless repeater. Works well for long periods of time, and then get sporadic per ...