So first of all, this is for my newly acquired project with fabric on and access a bit limited due to that. The airplane has an old but working 121.5 MHz ACK ELT where the builder put the antenna through the skylight. I have to replace the windshield and I would rather not do that if possible. On my other project I installed a mount and have the antenna internal to the fuselage based on reports of others. That said I was hooking up the handheld radio that i am going to use in this airplane and thought about the rubber ducky antenna that came with the handheld. I have an external antenna for the handheld and won't be using it. Being an antenna for a handheld aviation radio it is appropriate for 121.5 MHz although not perfectly tuned, and I was thinking I could just put it on the BNC connector on the ELT and internal antenna done. Any thoughts?