IARU HF World Championship S5 Records Callsign Category Points QSOs Mults Year S53MM SOMX HP 2,304,469 2816 283 2019 S50A SOMX LP 2,046,200 1984 325 2015 S59D SOMX QRP 85,870 305 155 2007 S50A SOSSB HP 1,899,412 2035 254 2001 S57UN SOSSB LP 271,188 511 186 2005 S57LR SOSSB QRP 54,600 247 104 2013 S57K SOCW HP 2,318,904 2412 301 2015 S57K SOCW LP 1,373,922 1976 257 2016 S53AR SOCW QRP 151,890 396 166 2022 S53MM SO Unlimited MX HP 3,078,560 2635 355 2020 S52NR SO Unlimited MX LP 791,224 1428 199 2017 S51RU SO Unlimited MX QRP 21,840 119 80 2017 S54ZZ SO Unlimited SSB HP 797,720 1222 245 2017 S57PKT SO Unlimited SSB LP 110,040 374 140 2016 S54MTB SO Unlimited SSB QRP 11,952 106 72 2015 S53A SO Unlimited CW HP 2,852,345 2145 391 2021 S53V SO Unlimited CW LP 1,307,538 1441 306 2016 S53O MS 2,082,296 2307 251 2002 S50HQ HQ 24,055,135 16449 515 2021
S50HQ (S50A, S50K, S50O, S50R, S50S, S50U, S50XX, S51DS, S51FB, S51IV, S51KD, S51MM, S51YI, S51Z, S52AW, S52EZ, S52MR, S52NY, S52W, S52X, S52ZW, S53F, S53K, S53O, S53OQ, S53WW, S53X, S53ZO, S54O, S54W, S55HH, S56M, S56P, S57AL, S57AW, S57M, S57UN, S57Z, S58D, S59A) S53O (S53O,S51RJ,ops) SOMX Single Op Mixed Mode SOSSB Single Op SSB Only SOCW Single Op CW Only MS Multi Op Single Xmit HQ IARU Headquarter station