To overcome blockage by the mast, some yachts have two antennas, a person on all sides in the mast, to port and starboard. The blockage zones set in Every single antenna controller establish once the arbitrator coax relays will swap through the blocked antenna towards the antenna with obvious sight https://docs.google.com/document/d/e/2PACX-1vQGnpPIcFRIGAXSmhRySzDQ2yhWlbtds5pYxhE3lisWWO3SVYDkw5tjl9rC3Tudkta2SsIkpFSbm5Lg/pub