Simply never going to happen
For all the reasons mentioned in the article.
Spectrum Analysers spend their lives in places where outside interference is minimal - otherwise, they're useless to the owner!
The ones I know of are in the following places:
Middle of nowhere for outdoor radiated emissions testing.
Inside a Faraday cage for indoor radiated emissions testing.
Inside a Faraday cage for conducted emissions testing.
These things cost a *fortune* and they're not 'hobbyist' devices. They are carefully stored when not actively making money for their owners.