Operating away from home

Many people need to operate away from home using compromise antennas. Handheld VHF and UHF transceivers often use a compromise antenna and lose many dBs. One possibility is this antenna that behaves like a 2m or 70cm dipole. It could be used in hotel rooms on 2m or 70cm FM with a handheld. It is likely to be somewhat better than the antenna on the transceiver.

See https://vu3dxr.in/hotel-antenna-for-2-meter-and-70-centimeter-amateur-bands/

I am sure if you are an experimenter you could make a fold-up version with old co-ax.