WANTED: Raytheon Loran Antenna Coupler

[Pcolaboy]

Anyone out there happen to have the antenna coupler for an older Raytheon loran unit? I recently acquired an early 90's FishNav unit at a yardsale but they did not have the antenna coupler. I've got literally hundreds of old Loran numbers that I cannot seem to find using my Garmin GPS even though it has the Loran TD waypoint option and yes I have tried the Posaid program from the Coast Guard but cannot get the coordinates to come out close enough.

Thanks in Advance