I'm going to assume you mean a car antenna? You might find this helpful:
No problem. Here you go, you can check out this article:
If it is car antennae most mast unscrew from the base . may have to go to dealer to get replacement .
I’m sorry tv
What kind.....House,RV,Automobile,Citizens Band???
I’m sorry i failed to say TV
now you can get small flat antennae that you can mount on wall or window inside house that work well I got one for my RV and another for spare bedroom at house that doesn't have satellite hooked up. I got mine on Amazon Here's info. http://www.antennasdirect.com/blog/10-digital-tv-antennas/ MORE INFO https://www.lifewire.com/best-tv-antennas-to-buy-4078201