Whilst there definitely is nothing in the API for retrieving what WeeWX 
knows as 'radiation', there is a calibration setting labelled 'SolarRad 
Gain' in the WS View app (interestingly there is no gain setting for 
anything to do with 'light', luminosity, illuminance etc so it could be a 
mis-labelling/inconsistent labelling of the parameter in the app). If you 
have been obtaining 'radiation' data via the interceptor driver can you 
please give me some further details, it may be a case of the GW1000 
deriving a radiation value suitable for on-line weather services such as WU 
and that is how WeeWX has obtained the 'radiation' data or, more unlikely, 
it may be that there is something else available in the API that is not 
documented.

Gary

On Sunday, 26 July 2020 08:37:10 UTC+10, gjr80 wrote:
>
> On Sunday, 26 July 2020 00:54:03 UTC+10, Vetti52 wrote:
>>
>> When running reconfigure with prompts, there are two changes, that 
>> occured in my case without asking:
>> group_pressure turns to inHg, and group_speed and group_speed2 turn to 
>> mile_per_hour 
>> and ~2 respectively.You better diff old and new version before 
>> restarting.
>>
>
> This almost certainly is an issue with wee_config and your config; the 
> GW1000 driver has no ability to change WeeWX units/unit system. I do have a 
> vague recollection that there was a previous issue that was raised (and 
> fixed) regarding unexpected unit changes (it may have been on upgrade). I 
> will make a note to look into this.
>  
>
>> In addition, 'radiation': 'solar_radiation', is missing in default_field_map 
>> in gw1000.py. 
>>
>
> This is intentional. Unfortunately the GW1000 API has no ability to obtain 
> what in WeeWX parlance we know as field radiation (solar insolation). The 
> API can return what the API terms 'light' or luminosity in Lux as well as 
> UV index and what the API terms 'UV' in microWatts per square metre. Some 
> folks derive field radiation from luminosity though I believe the 
> relationship is somewhat complex. It's not the place for the GW1000 driver 
> to derive obs such as radiation from other obs, rather derived 
> observations should be derived by the StdWXCalculate service. Whilst the 
> StdWXCalculate service does not really lend itself at present to the 
> addition of user defined derived obs, a user can add simple derived obs by 
> adding appropriate entries under [StdCalibrate] [[Corrections]] in 
> weewx.conf, for example:
>
> [StdCalibrate]
>     [[Corrections]]
>         new_obs = outTemp * 2.5 + 2 * (windSpeed - barometer)
>
> would create the field new_obs using the (nonsense) formula shown. The 
> default GW1000 driver mapping passes the light, UV and UV index 
> observations through to the WeeWX loop packet (UV index is mapped to WeeWX 
> field UV) so they are available for use in StdCalibrate as required.
>
> Gary
>

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