Higgler and Biff, thanks very much for your posts and I totally agree with the mismatching theory. Ill just give you a little more background to our problem. we first noticed the problem around 2 months ago whereby the primary heights were differeing from the ssr heights by the figures i gave...
the pressure at the antenna is 0.5 psi. we use a phased array antenna. i think the changes in beam shape we are getting are more than small as the height difference at max range (250 nm) is ranging between 7000 and 15000 above and below the actual height!!
I work on a radar system that employs flexi-waveguide between the transmitter and antenna. the rf travelling down this waveguide is at a swept frequency which is used, via the means of steering the beam, to provide us with a 3-d target (range, azimuth and height). the waveguide is constantly...
