HDS 7 Gen 3 looks like it supports the following:
Radar compatibility: 4G (Broadband), 3G (Broadband), TX06L-1 (6kW HD Digital)
Which generation of HDS-7 do you have?
Based on those requirements, I doubt anything that has "Raytheon" printed on it will work. Raytheon started marketing under Raymarine in 2001.