While ago I bought a low noise amplifier kit from Jim at www.w6pql.com. I´m going to try the LNA for FPV purpose on the receivers side between the antenna and the tuner module.
The LNA is set to work in the L- and S-band between 900MHz and 1300MHz. Althought it´s possible to configure the LNA for use in 13cm band (2.4Ghz) as well. See Jim´s page for details.
Some pictures and a gain plot:
Gain is ~15dB @ 1200MHz.