If your serious and you have a minimum 4ft square window and the dish is facing directly out or nearly. The dish needs to be 80cm good lnb replace the glass with polycarbinate sheeting. This stuff is not cheap, i've had my system running for years
hope it helps
"The Pulsat LX2000 is an unusual design of antenna for reception of DTH satellite signals. It includes a single-output LNB covering both low-band and high-band and horizontally and vertically polarized transmission modes. It is intended to have lower visual impact than a conventional dish antenna and can be mounted behind plastic materials for even better concealment"