Gavdalbs Rtx is a Trimble sat correction like omnistar but better.
Aussiefarmer u should be better with tower dropout now that Trimble has the xfill for Rtx. Gives u 20min of locked Rtk signal if u loose base signal thru free software upgrade. But tree drop outs are the same. Although tree dropouts are worse on Rtx as ur accuracy convergence blows out. If u can I'd reckon u should try go Rtk.