LNB PCB with SMA for external Dualband-Feed
Actually someone already did it
Look at page 11 - 13 !!
Very clever, even still waterproof and no extra case needed..
Very clever to use the original cover!
On the other hand for lowest noise figure it is hard to beat having the antenna directly in on the gate of the the first amplifier.
The best LNB option in my view would be to find a low cost "slim" LNB with a fitted dielectric lens that is a PLL unit and preferably using a 25MHz crystal for easy conversion from 10MHz.
I'm on the hunt for a suitable unit and have a couple of slim LNB in transit.
It's great that Oscar 100 forces us to build for microwaves.
I find it really enjoyable trying to figure out how to build a station in the smartest way and I guess so does a lot of other Ham.
Lots of great ideas and builders on this forum.
Vy 73 de Darko OE7DBH
But this is useful - we would not want to forget how to make wheels.