The inscription on the plaque on Abbotsford Nursing Home is:

NEAR THIS SITE IN DECEMBER 1921, RADIO SIGNALS TRANSMITTED BY
RADIO AMATEURS WERE FIRST HEARD ACROSS THE ATLANTIC.  AMERICAN
ENGINEER PAUL F GODLEY SELECTED ARDROSSAN AS A QUIET SPOT FOR
RADIO RECEPTION, AND SPENT SEVERAL LONG WINTER NIGHTS IN A TENT
WITH HIS RECEIVING APPARATUS.  HE WAS REWARDED WITH CONFIRMED
RECEPTION OF MORE THAN 30 DIFFERENT AMATEUR RADIO STATIONS IN
CANADA AND THE UNITED STATES, THUS PROVING THAT VAST DISTANCES
COULD BE SPANNED BY RADIO WITHOUT MASSIVE COMMERCIAL
INSTALLATIONS.
ERECTED IN DECEMBER 1989 BY THE RADIO SOCIETY OF GREAT BRITAIN
TO COMMEMORATE THE 75TH ANNIVERSARY OF THE FOUNDING OF THE
AMERICAN RADIO RELAY LEAGUE, SPONSOR OF GODLEY'S EXPEDITION.