Irregular scattered patches of relatively dense ionization that develop seasonally within the E region and that reflect and scatter frequencies up to 150 MHz. Note 1: The sporadic E is a regular daytime occurrence over the equatorial regions and is common in the temperate latitudes in late spring, early summer and, to a lesser degree, in early winter. Note 2: At high, i.e., polar, latitudes, sporadic E can accompany auroras and associated disturbed magnetic conditions. Note 3: The sporadic E can sometimes support reflections for distances up to 1000 miles or more at frequencies up to 150 MHz
by IRISHrepublicanARMY January 03, 2004
Automatic Link Establishment (station)
In high-frequency (HF) radio, the capability of a station to make contact, or initiate a circuit, between itself and another specified radio station, without human intervention and usually under emergency conditions. ALE stations are generally computer-controlled.
In high-frequency (HF) radio, the capability of a station to make contact, or initiate a circuit, between itself and another specified radio station, without human intervention and usually under emergency conditions. ALE stations are generally computer-controlled.
by IrishRepublicanArmy January 24, 2004
by IrishRepublicanArmy January 24, 2004
by iRiShREPUBLICANarmy January 27, 2004
by IrishRepublicanArmy February 19, 2004
by IrishRepublicanArmy May 19, 2004