I bought a RSPduo recently and it has two receive tuners; each with a dedicated antenna connection. It’ll receive from 1kHz to 2GHz. I plan on hooking a DMN-D3000N that’ll receive 25-3,000MHz and I’d really like to avoid running two separate antennas for it. At least until I can figure out how to run a proper long-wire to port one parallel and close to my dipole without frying things…

Anyway, 50-ohm antenna splitters seem to be pretty narrow bandwidth wise. Would splicing together two connectors and the antenna feed line work so that I could plug the one antenna into both tuners?

Bonus question: I’ll probably put a DXE-RG5000HD RF guard inline to prevent my transmissions from harming anything attached to the discone. Would the same work with the long wire antenna were I to just stick the wire in the middle of the BNC connector?