The Society to Preserve the Engrossing
Enjoyment of DXing or SPEEDX club
was founded in 1971 by former officers and
members of the American Shortwave Listeners
Club.
SPEEDX published a printed monthly
bulletin with the same name. During the last
3 years, the magazine was called "Short Wave
Radio Today".
The membership began to decline in the late
80's, until the society was dissolved in
1995.
Speedex had the slogan, "THE DX RADIO
BULLETIN FOR
ACTIVE SHORTWAVE LISTENERS"