Hi. My location is 167 degrees E, 8 degrees N in the Marshall Islands, a baseball's throw away from the ocean and the extremely corrosive, salt-filled winds it brings. We use >8-feet C-band dishes with Norsat 3420 C-band LNBs. These are high quality units, from what I gather--though I'm not a tech or engineer. But unfortunately, our LNBs keep crapping the bed after less than 2 years use--sometimes only 1 year. Based on ya'lls experience, does this short lifespan sound about right for these LNBs? Does anyone have any recommendations for how to extend their lives, such as any useful "hood"-like contraptions/materials that protect from UV and salt spray without impacting signal strength? Thanks!