Lowrance Broadband 4G Radar Installation Guide - Page 24

6. The radar source selection is not global, so will only apply to the display on which the source was selected. The radar source will need to be setup for each display on the network. Once the radar sources have been set up they will be retained for every system power-up until changed by the user Dual Range setup (Broadband 4GTM Radar only): With a Simrad NSE display connected to a Broadband 4G™ radar, it's possible to run the radar in dual range mode. This allows two radar panels to be veiwed simultaneously, operating at different ranges but with all image data supplied by one 4G scanner. Each displayed radar panel can track up to 10 MARPA targets - ability to acquire targets is range dependant. Setup of Dual Range is identical to that used for Dual Radar setup, except that a 4G radar will show two instances in the sources list; an A channel and a B channel.  Note: two 4G radars on the same system will show four radar sources (two A and B channels). 22 | Setup and Configuration | Broadband 3G/4G™ Radar Installation Guide