S-280 Shelter. How do I get Cellular/Radio Reception Inside?

[Tinstar]

Glad to hear it works and it solved the poor coverage.
What color is the antenna? Did you paint it OD green?

Outside antenna is white, inside antenna is black.
Did not paint anything.

The pole is galvanized and no paint either.

Would love to paint the shipping container and antenna pole OD.
That would require at least 10 gallons........@ $70 a gallon for the good stuff.
Can’t justify that expense.