I too have a Condo in Thailand, which I use when I get out to Thailand, my Condo is on the 5th floor of 18 and is 90km South of Suvarnabhumi Airport [BKK] but unfortunately has a big hill just to north of me so masking a lot of BKK area, also if I could put up a aerial on the roof, 50m of good coax would be expensive and lossy.
I have been thinking that a Ethernet version of the RadarBox could be very useful as it could be left unattended without needing a PC attached, also could be mounted in weather proof box on the aerial mast saving on the expense/loss of coax feeder and computer interference, one thing to bare in mind is that many tall buildings are used commercially as transmitter platforms and you could suffer from heavy interference, may need some big bandpass filtering.