BG5BQB Thank you, this is an interesting idea. I was originally planning to buy a K480 for everyday use, but unfortunately, my apartment is quite small. However, there's a skylight outside that lets in plenty of light, which made me think about running a cable down. But after considering the potential losses and the difficulty of installing the cable, I realized it would probably be too expensive and complicated to do right now. For the time being, I'll just use the existing setup on the upper floor since I already own a QRP device.