antenna question

I have a Tournament Series Bottom Line fishfinder on my old boat. Boat is a 1992. Fishfinder is likely the same vintage.

It used to be top-of-the-line in its day. Had Loran, GPS, and fishfinder, complete with side sonar units.

Of course, loran has been discontinued.

My problem is that I dicovered one of my antennas is broken. It had a plastic base, and I guess some water accumulated in it and froze in the recent cold weather, which busted the plastic.

My question is: Was this the Loran antenna? (If so, I will just unhook it.)

Here are some pics. It had a wad of electronics in the base of it:





and here is a pic of what, i presume, is my gps antenna for this unit.....



I tried to look it up, and I found a replacement Loran module (Eagle ELC-1) for sale. I just wanted to confirm that this thing is only the loran, and not any part of the gps system.

Anybody know anything about these?