If anyone is interested, you may order down-converters with 14-14.5 GHz input and 950 - 1450 MHz output.  Local oscillator is internal reference PLL 13.05 GHz 10E-6 stability.
...
Ideal for Ku band transmit monitoring using L band spectrum analyser or regular modem.  Also suitable for terrestrial microwave links using Ku band BUC, subject to radio regulations. Do not point such RR dishes at the horizon where low elevation satellites exist or transmit high spectral density carrier in any direction !

Price is 1248 euro, if paid for before 15th May 2009.

Read more 14 GHz to L band downconverters for sale

Best regards, Eric.