Something like this[1] might come in handy for tracking one of those down, should it become lost somewhere. Alternatively, if you just want to look for a radio

Something like this[1] might come in handy for tracking one of those down, should it become lost somewhere. Alternatively, if you just want to look for a radiological signal, you could use one of these[2]. [1] https://patents.google.com/patent/US11892419B2/en https://patents.google.com/patent/US11892419B2/en [2] https://www.caen.it/products/gamon-drone/ https://www.caen.it/products/gamon-drone/