27-08-2018, 08:50 AM
Certainly for what I'm doing I'd not pay that kind of money. I've carefully made up a manual switch using a modern ceramic type of three way switch. Short leads with the minimum of centre core stripped. All screens short and tied together. Using the SDR and looking at the signal level meter, I can go between the switching box and direct connection. Up to around 40mHz there is no visible loss. On band 2 it reads 0.5db lower via the box. Once I get to 4G frequencies its dropped by 3.5db. Up at 1.8gHz its at 7db. So there are losses, to be fair less at the end of the spectrum I'm interested in. If I'm looking at the GHz end then I'd have to swap cables manually
