arrl提供的50mhz以上通讯记录,在u段最高有4000多公里的,厉害啊。
propagation
mode distance(km) stations (grid locators) qso date
432 mhz
aurora 1,909 wb5lua (em13qc) -- w3ip (fm19pd) 08-feb-1986
meteors 2,040 n6rmj (dm14cp) -- w7xu (en13lm) 17-nov-1998
meteors 1,999 wb5lua (em13qc) -- kd5ro (fn13fb) 13-dec-1988
meteors 1,641 w0ler -- w2azl 12-aug-1972
tropo (a) 2,273 w1ril (fn42ah) -- vp5d (fl31ut) 10-may-1988
tropo (a) 1,707 kf4fwu (elo97st) -- wp4o (fk68km) 01-oct-1998
tropo (a) 1,662 w4mos (el97te) -- wp4o (fk68km) 01-oct-1998
tropo (c) 2,201 km1h (fn42hr) -- wb4mje (el94hq) 16-dec-1992
tropo (c) 2,166 w5uwb (el17ax) -- k2yaz (en74ax) 11-oct-1998
tropo (c) 2,126 wa5vjb (em12lq) -- wb3czg (fn21ax) 29-nov-1986
tropo (c) 2,068 w5uwb (el17ax) -- k8md (en82bq) 11-oct-1998
tropo (p) 4,150 kh6hme (bk29go) -- xe2/n6xq (dl29cx) 15-jul-1989
tropo (p) 4,109 kh6iaa (bk29go) -- kd6r (dm13ni) 28-jul-1980
tropo (p) 4,035 kh6hme (bk29go) - n6peq (dm13cr) 13-jul-2003
tropo (p) 4,013 kh6hme (bk29go) -- k7ja (dm03xs) 11-jul-1999