I know this is a joke, but you can get a shocking amount out of a baofeng with a good antenna, a preamp and some good filtering.
Whether that's worth it compared to just buying a more reliable radio probably depends on how much you want to DIY.
Whether that's worth it compared to just buying a more reliable radio probably depends on how much you want to DIY.
—73
[1] The volume potentiometer becomes unreliable after regular on/offs. The major concern is that after a few years, some "steps" of volume randomly mutes (with no indication, you just don't hear the incoming).
Commercial portable: Nagoya NA-771 (beware clones)
Commercial fixed: Diamond X30, X50 or V2000 colinear.
With any upgraded antenna on a receiver with little filtering like the Baofeng, you may deafen it into hearing no wanted signals if operating it in an RF-hot environment.
Don't transmit without a licence.
For larger handheld or fixed you could build/buy a yagi antenna that has a higher directionality/gain.