Not dumb. A pigtail is two alligator clips on each end with wire in between. So basically clip to long wire and the other clip to center pin of the sma cable with the 3.5 antenna cable . https://www.amazon.com/WGGE-WG-026-Pieces-Colors-Alligator/dp/B06XX25HFX/ref=sr_1_4?crid=5PEVU2HKL17N&keywords=alligator+clips+electrical&qid=1685627612&sprefix=Alli%2Caps%2C232&sr=8-4

https://www.amazon.com/RedYutou-Female-Adapter-Antenna-Extension/dp/B091ZCNXWD/ref=sr_1_4?crid=8MICRKCHONVG&keywords=3.5+mm+antenna+adapter&qid=1685627786&sprefix=3.5+mm+antenna%2Caps%2C125&sr=8-4

These also work well https://www.amazon.com/CERRXIAN-Terminal-Headphone-Converter-Adapter/dp/B06Y5YJRPD/ref=sr_1_8?crid=8MICRKCHONVG&keywords=3.5+mm+antenna+adapter&qid=1685627786&sprefix=3.5+mm+antenna%2Caps%2C125&sr=8-8