The AMSAT News Service reports on the first-ever terrestrial transatlantic contact on 70 centimeters. It says that on April 7, Burt Demarcq, FG8OJ, in Guadeloupe, made a 432-MHz contact via FT8 with D4VHF, some 2400 miles away in Cape Verde. Last June, FG8OJ made the first non-satellite, non-moonbounce transatlantic contact on 2 meters, working D41CV along the same path. It is speculated that the contacts were made possible by marine ducting, in which signals are trapped close to the ocean's surface.
|Path between FG8OJ and D43VHF
(From EI7GL website)
The same conditions the next day provided for a new transatlantic DX record on 2 meters, with D4VHF working PJ2BR on Curacao, also via FT8, at a distance of roughly 2950 miles, according to the ARRL Letter. D4VHF, by the way, is the VHF/UHF contest call of the Monteverde Contest Team, which is familiar to HF contesters as D4C.