All LNBs unmodified, no TCXO, no ext. ref!

http://www.octagon-germany.eu/wp-content/uploads/mainpics/lnboptima4.jpg

http://www.octagon-germany.eu/wp-content/uploads/mainpics/lnboptima4.jpg

https://www.pollin.de/images/600x600x90/I571751.1-Universal-Single-LNB-GOLDEN-MEDIA-GM-201-0-1-dB.jpg

http://fletcher.fi/Universal_Single_LNB_GOLDEN_MEDIA_GM_201_modification_for_external_referencing_oh2aue.pdf

https://images-na.ssl-images-amazon.com/images/I/61fE%2BBdEevL._SL1280_.jpg

https://forum.amsat-dl.org/index.php?thread/142-lnb-advice-except-octagon/&postID=3373#post3373

https://picclick.com/KU-band-LNBF-Amiko-Premium-L-104-Single-Output-Longneck-141289883704.html

Identical electronics as Octagon Optima OSLO and Avenger LNBFs

http://www.inverto.tv/lnb/358/single-universal-40mm-pll-lnb

http://www.inverto.tv/lnb/250/single-high-band-40mm-lnb-lo1060-ghz

http://greatek.com.br/produto/uso7104ax/

https://www.octagon-germany.eu/produkte/lnb/optima-serie/oslo/

https://www.satking.de/media/image/1a/2c/ce/SOL_AX_BLACK_BUSTER_PREMIUM_TWIN_TWIN.JPG

*1: is the PLL stable locking or has it a some instability

*2: could the LNB modified for external reference frequency

*3: can the external reference lock the PLL over a wide bandwith or only a small bandwidth

This data is only for comparison purposes, reported by OMs and can vary from one LNB to another!

No claim to be 100% correct or complete! If you have other data or think something is wrong then supply your experiences/measurements