Cheers, always pleasing to b able to help.
Running a amplifid loop now of own design, i just wanted to try this one out.
Have several pieces coax left 15 millimeter thick ( Ecoflex 15) that i can use for the loop.
For 2/70 i used the MGF 1300 series GaAs fets as pre amps, well build you got an incredible low noise and good gain.
If i turned my beams towards the sun i could hear the noise come up.