What matters is not the absolute elevation of the roof and of the contraption.
Rather, it’s the difference, positive or negative, between them. So a kid’s
drone would certainly do the trick. Would just cost a smile, a treat, or a few
bucks.
Amities
Philippe
> Le 11 mars 2021 à 12:59, Wayne Shumaker <om3ti@xxxxxxxx> a écrit :
>
> At 3/11/2021 01:25 AM, Philippe wrote:
>
>> A drone recording the elevation seems a quick and dirty but effective
>> solution.
>>
>> When you’ve reached the age of 50 and do not own a drone you’ve screwed
>> up your life, they say ;-)
>>
>> More seriously, the first kid you meet in your street must have gotten one
>> at a not so distant Xmas. Just listen around, and ask.
>
> More GAS, and best solution.
>
> And with the drone you can go up directly see the height difference.
>
> WayneS
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