The issue is not one of units; it's an inconsistency between what the 
Weatherlink console is displaying and what weewx is.  

For example, for the series of speeds that I posted previously, which were 
taken from the console, weewx recorded 0 as the speed.  From observation, 
when the console displays a speed between 0 and 1.6kph, weewx records 0; 
for speeds between 1.6 and 3.2 kph, weewx displays 1.6kph, for speeds 
between 3.2 and 4.8kph, weewx displays 3.2kph and so on.  Obviously, if 
those values are converted to mph, the progression is 1mph, 2mph, 3mph 
which implies that for some reason, weewx is only recording speeds in 
increments of 1mph.  A complication is that while that is generally what 
happens, I do occasionally see weewx recording wind speeds that are not 
multiples of 1mph.  Wind gust, however, is *always* a multiple of 1mph.

The rtldavis/weewx-rtldavis and the console are obviously receiving the 
same signal but they are interpreting it differently.
On Monday, December 8, 2025 at 9:47:58 PM UTC-8 John Smith wrote:

> Units transmitted are usually fixed and don't have to match those being 
> displayed.
>
> On Tue, 9 Dec 2025 at 02:19, Danny Ciarniello <[email protected]> 
> wrote:
>
>> I have configured my console to display data with one decimal place 
>> precision and wind in kph so yes, I'm sure.
>>
>> On Monday, December 8, 2025 at 12:05:36 AM UTC-8 John Smith wrote:
>>
>>> On Mon, 8 Dec 2025 at 17:49, Danny Ciarniello <[email protected]> 
>>> wrote:
>>>
>>>> 20:51:11 - 1.5 kph
>>>> 20:51:14 - 0.5 kph
>>>>
>>>
>>> Not sure about your setup etc, but my Davis weather station only reports 
>>> whole km/hr values, are you sure those values aren't m/s or some unit other 
>>> than km/hr? 
>>>
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>>
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