Invacom 0.3dB vs. Octagon PLL vs. SMW PLL Ku LNBs

Provoked by John's thread Just Sharing This - 1.2 Precision / Octagon lnbf mod I got around to fitting an Octagon PLL LNB to an Invacom C120 flange. The id of the Octagon is within 0.2mm of the id of the IRTE feed but I think there's an extra error of the same order due the LNB not being quite concentric with the flange. It is only force fitted at the moment and I may try to re-do it.

I did...

Invacom 0.3dB vs. Octagon PLL vs. SMW PLL Ku LNBs