Last December I purchased a V3D downconverter, GPS module and the modified LNB from the AMSAT-DL shop.
Due to a house move I have only recently unpacked and installed the connectors as set out in the WiKi pages.
All lights on the board and GPS came on as per the WIKI, however it was immediately noticeable that the stability was, well unstable, indeed the CW beacon was drifting wildly.
Now I have double read the WiKi, I have double checked the connections, I have tried using the board without the GPS as set out in the WiKi, still unstable,
I note from the Forum that others have mentioned the same issue and that a "box" is required to prevent "wind" on the TCXO, Ive also seen that others have put foam on the TCXO.....
At this time I am just hugely disappointed with this board, at Eur 353 I didnt expect it not to work without having to then additionally purchase a box etc
Tomorrow hopefully I can ( with some assistance ) test the board further at our local club with test equipment, incase I have made some error, but for now it is very puzzling that the board, in an unboxed state can be so unstable and completely unusable.