IARU Region 1 VHF/UHF/SHF/EHF DX records

Last update: 25 January 2009

Up to 5 contacts are shown for each band/propagation mode.

50 MHz	70 MHz	144 MHz	432 MHz	1.3 GHz	2.3 GHz	3.4 GHz	5.7 GHz
10 GHz	24 GHz	47 GHz	75 GHz	122 GHz	134 GHz	145 GHz	241 GHz
474 THz	Notes

50 MHz

Mode	Station A		Station B		Mode	Date	Distance
Mode	Call	Locator	Call	Locator	Mode	Date	Distance
Tropo	ZS6Y	KG33VW	ZS1AGF	JF96FG	SSB	1999-10-24	1238
	G4UPS	IO80JV	SM7AED	JO65NI	CW	1993-12-16	1197
	GJ4ICD	IN89WF	OZ5W/P	JO64GX	SSB	1996-06-01	1188
	ON4ANT	JO20AR	LA8AJA	JP50HQ	CW	2001-09-24	1182
	ZS2FM	KF26TA	ZS6PJS	KG46RC	SSB	1995-03-27	1178
Aurora	ES2QN	KO29DJ	TF3MLT	HP94	SSB	2000-09-12	2335
	G4IGO	IO80NW	ES4EQ	KO39CE	CW	2002-10-01	2051
	G0JHC	IO83PR	OH7AXB	KP32XH	SSB	1989-03-13	2022
	OH2TI	KP20KE	GI4OWA	IO64IX	CW	1989-11-17	1987
	ES1CW	KO29HK	GI0KOW	IO64PG	CW	1998-08-27	1975
Spor-E	YO7VS	KN14VH	VK4KK	QG62MQ	CW	2000-01-25	15153
	CT1FJC	IM57OC	JA6RJK	PM53FH	CW	2009-07-04	11142
	OE5MPL	JN78CJ	OA4TT	FH16TW	CW	2009-05-25	11127
	IZ5EKV	JN53OQ	9M6XRO	OJ85AW	CW	2009-06-14	10737
	IK0FTA	JN61GV	9M6XRO	OJ85AV	CW	2009-07-05	10683
Meteor	G4IGO	IO80NW	SV1OE	KM17VX	SSB	1990-08-12	2542
	OH5LID	KP54DA	G4IGO	IO80NW	JT6M	2009-06-06	2421
	OH8K	KP27KS	G4IGO	IO80NW	JT6M	2005-06-11	2409
	ON4GG	JO20AR	OH9O	KP48DA	SSB	2003-08-09	2335
	ON4IQ	JO20AR	OH9O	KP48DA	CW	2003-09-09	2335
EME	F6FHP	IN94TR	ZL3NW	RE66HO	JT65A	2006-03-03	19441
	G8BCG	IO70RK	ZL3NZ	RE66HO	?	2009-04-30	19194
	G4IGO	IO80NW	ZL3NW	RE66HO	JT65A	2008-09-20	19102
	M0BCG	IO91DO	ZL3NW	RE66HO	JT65A	2005-01-24	19001
	G4IGO	IO80NW	ZL3TY	RE57OM	JT65A	2005-09-04	18965
F2	ZL3VTV/1	RF73KD	EH7KW	IM67XI	SSB	2001-04-03	19921
	EA7KW	IM67XI	ZL2TPY	RF70BW	SSB	1999-03-29	19815
	EH9IB	IM85NG	ZL4AAA	RF65	SSB	2000-04-03	19535
	ZS6PJS	KG46RC	KH6/K6MIO	BK29KS	SSB	2000-04-10	19360
	ZS6LN	KG46RC	KH6IAA	BK29LA	SSB	1979-04-15	19305
TEP	IK0FTA	JN61GV	KH8/N5OLS	AH45DQ	CW	2001-04-08	16920
	9H1PA	JM75FV	VP6BR	CG44	CW	2000-03-21	16428
	9H1CG	JM75FW	VP6BR	CG44	?	2000-03-21	16428
	G4IGO	IO80NW	CE8BHI	FD46	?	1991-11-02	13117
	ES5AAM	KO38GR	LU2FFD	FF97OB	SSB	2000-05-28	12923
Aur-Es	G4IGO	IO80NW	JE1BMJ	QM05BF	?	2006-06-14	9797
	MM0AMW	IO75EJ	VE4SA	EO15BR	CW	2006-05-22	5369
	SM3EQY	JP81FI	VE8HL	FP53	SSB	1995-06-14	4018
	OH2TI	KP20KE	OX3LX	GP44EG	CW	1994-06-07	3761
	OH5LK	KP30ON	OX3LX	GP36NP	CW	1990-07-01	3748

70 MHz

Mode	Station A		Station B		Mode	Date	Distance
Mode	Call	Locator	Call	Locator	Mode	Date	Distance
Tropo	OZ1DJJ	JO65HP	G0IUE	IO81WJ	SSB	2003-08-02	1084
	GJ3YHU	IN89WF	GM3WOJ	IO77WS	CW	1998-08-09	960
	G4PIQ	JO01MU	GM4DHF/P	IO89QC	SSB	1997-08-10	840
	GM3WOJ	IO77WO	G4RFR	IO90AS	SSB	1988-09-18	774
	G4FRE/P	IO70PP	GM4ZUK/P	IO87WB	SSB	1986-09-21	734
Aurora	GW8IZR	IO73TI	S51DI	JN76VL	CW	2005-05-08	1630
	G4IGO	IO80NW	S51DI	JN76VL	CW	2005-05-08	1456
	EI7IX	IO53FT	OZ3ZW	JO54RS	SSB	2004-07-27	1367
	OZ2LD	JO54TU	GI4KSO	IO64XK	CW	2003-10-29	1138
	OZ1DJJ	JO65HP	G3UVR	IO83	CW	2003-10-29	956
Spor-E	SV2DCD	KN00LI	D44TD	HK86NO	SSB	2009-06-12	4963
	SV2DCD	KN00NF	CU8AO	HM49KL	SSB	2006-07-12	4406
	S51DI	JN76VL	CU8AO	HM49KL	SSB	2006-07-12	3847
	OY3JE	IP62OA	SV5BYR	KM46CK	CW	2008-05-28	3732
	OZ1DJJ	JO65HP	CU8AO	HM49KL	SSB	2006-06-03	3668
Meteor	ES3RF	KO29IF	I6BQI	JN72AK	JT6M	2008-05-12	2008
	G4IGO	IO80NW	I6QBI	JN72	JT6M	2007-08-16	1552
	OZ1DJJ	JO65HP	EI3IO	IO63WF	SSB	2003-08-12	1242
	GJ3YHU	IN89XI	GM3WOJ/P	IO89KB	SSB	1982-08-12	1083
EME	ZS6WAB	KG46RC	GD0TEP	IO74SD	JT65A	2009-02-15	9239
Aur-Es	OZ1DJJ	JO65HP	CU8AO	HM49KL	CW	2006-06-03	3668
	OZ2M	JO65FR	GM4VVX	IO78TA	CW	2003-08-18	1055
	GM3WYL	IO75	OZ1DJJ	JO65HP	CW	2003-08-18	1040

144 MHz

Mode	Station A		Station B		Mode	Date	Distance
Mode	Call	Locator	Call	Locator	Mode	Date	Distance
Tropo	G4LOH	IO70JC	D44TD	HK86NO	CW	2007-08-04	4041
	EI5FK	IO51RT	RW1ZC/mm	IK18PQ	SSB	2005-08-15	3745
	G4LOH	IO70JC	RW1ZC/mm	IL10GF	SSB	2005-08-07	3487
	GM0KAE	IO86CD	EA8BML	IL27GX	SSB	1988-09-09	3264
	GM4COX	IO85JX	EA8BML	IL27GX	SSB	1988-09-09	3260
Aurora	PA3EKK	JO32HA	UA4ANV	LO44	CW	1992-05-10	2724
	GM4BYF	IO85JV	RB5CCO	KN59XG	CW	1989-12-01	2465
	G4VBG	IO94FV	UA3IFI	KO76WT	CW	1986-02-07	2324
	9A1CAL	JN86EL	RA4AOR	LN29LA	CW	2000-07-15	2149
	OH2TI	KP20KE	UZ9CC	MO06RT	CW	1988-10-10	2137
Spor-E	YO4FNG	KN44HD	EA8AVI	IL28FC	SSB	2006-06-25	4293
	OE1SBB	JN88FF	RI8TA	MM37TE	SSB	1989-07-21	4281
	OE1XLU	JN88FF	RI8TA	MM37TE	SSB	1989-07-21	4281
	CT1WW	IN61GE	OD5MR	KM73VV	?	1979-06-28	3867
	EA8XS	IL28GA	HG0HO	KN07RU	SSB	1983-07-16	3865
Meteor	GW4CQT	IO81LP	UW6MA	KN97VE	CW	1977-08-12	3101
	G4LOH	IO94EA	RW3PF	KO93CD	FSK441	2003-08-09	2605
	RU3ACE	KO95KG	G4LOH	IO94EA	FSK441	2003-08-08	2581
	EA3AXV	JN01TJ	ES6RQ	KO28WA	FSK441	2003-11-19	2518
	GW8ASA	IO81EM	LZ9X	KN32AS	FSK441	2005-08-08	2430
EME	EA5SE	IM98IL	ZL1IU	RF64VR	JT65B	2005-10-24	19453
	EA2AGZ	IN91DV	ZL3TY	RE57OM	JT65B	2005-10-13	19434
	F6APE	IN97PI	ZL3CU	RE66GL	JT65B	2009-03-05	19337
	ZS6ALE	KG46RC	K6MYC/KH6	BK29AO	CW	1984-07-18	19287
	EA5ZF	IM99VT	ZL3TY	RE57OM	JT65B	2005-06-19	19242
TEP	I4EAT	JN54VG	ZS3B	JG73	CW	1979-03-30	7784
	SV1AB	KM18VC	ZS4BU	KG33VE	CW	1981-09-17	7196
	SV1DH	KM18UA	ZS6DN	KG44DC	CW	1979-02-13	7091
	SV1AB	KM18VC	ZE2JV	KH52MD	CW	1978-04-12	6236
Iono	DF9PY/P	JO30JF	SM2EKM	KP05UW	CW	1989-06-09	1947
	G4SWX	JO02PB	SM2CEW	KP15CR	CW	1991-06-11	1923
	DK3BU	JO33NO	RK3FG	KO86HP	CW	2003-07-03	1897
	PE1OGF	JO21QJ	SM2CEW	KP15CR	CW	1998-06-07	1860
	SM2CEW	KP15CR	PA0JMV	JO21PL	CW	1995-07-16	1854
Aur-Es	PA3COB	JO32MF	UA1ZCL	KP78TX	CW	1987-08-25	2391
	DK3BU	JO33NO	UA1ZCL	KP78TX	CW	1987-08-25	2254
	9A1CAL	JN86EL	SM2CEW	KP15CR	CW	2000-11-06	2172
	OH2TI	KP20KE	GI4OWA	IO64IX	CW	1989-11-17	1987
	JX7DFA	IQ50OV	SM1BSA	JO97IO	CW	1996-08-05	1959
FAI	YU7MS	KN05FJ	EA7AG	IM86SU	SSB	1989-07-15	2135
	SP4MPB	KO03GS	EA2AGZ	IN91DV	SSB	2000-06-13	2110
	YU7EW	KN05HP	EB4TT	IN70XJ	CW	1995-06-02	2084
	5B4/DL5MAE	KM65FA	I4LCK	JN54RK	CW	1996-06-10	2073
	YU7EW	KN05HP	EB5IJA	IM88WV	SSB	1995-07-19	2012

432 MHz

Mode	Station A		Station B		Mode	Date	Distance
Mode	Call	Locator	Call	Locator	Mode	Date	Distance
Tropo	G0FYD	IO83LS	EA8BPX	IL18SK	SSB	2003-08-08	3019
	EA8XS	IL28GA	GW8VHI	IO81CM	SSB	1984-07-05	2786
	EI5FK	IO51RT	EA8BPX	IL18SK	CW	2001-06-19	2678
	EA1FDI/p	IN52LW	RW1ZC/mm	IK19HV	FM	2005-08-07	2672
	OZ2OE	JO45VV	UA6LGH	KN97LF	CW	1985-10-26	2219
Aurora	EI5FK	IO51RT	S51ZO	JN86DR	CW	2003-11-20	1883
	PA0FRE	JO21FW	RA3LE	KO64AR	CW	1989-03-13	1851
	PA0WWM	JO22FE	RA3LE	KO64AR	CW	1989-03-13	1842
	PA0RDY	JO22KJ	RA3LE	KO64AR	CW	1986-02-08	1807
	OH2TI	KP20KE	UA9FAD	LO88DA	CW	1991-03-24	1799
Meteor	SM3AKW	JP92AO	UA9FAD	LO88DA	CW	1999-08-12	2141
	LY2WR	KO24OQ	UA9FAD	LO88DA	CW	1998-08-12	1939
	SM2CEW	KP15CR	PA3DZL	JO21HM	CW	1989-08-12	1869
	PA5DD	JO22IC	SM2CEW	KP15CR	CW	2001-08-12	1808
	OH2TI	KP20KE	G0RUZ	IO93HN	CW	1995-08-13	1747
EME	G3SEK	IO91IP	ZL3AAD	RE66GR	CW	1989-03-12	18970
	F9FT	JN29AG	ZL3AAD	RE66GR	CW	1980-04-18	18907
	DK3BU	JO33NO	ZL3AAD	RE66GR	CW	1986-03-21	18441
	Y22ME	JO72GI	ZL3AAD	RE66HL	CW	1987-04-04	18117
	OZ7UHF	JO65ER	ZL3AAD	RE66GR	?	1985-03-31	18029

1.3 GHz

Mode	Station A		Station B		Mode	Date	Distance
Mode	Call	Locator	Call	Locator	Mode	Date	Distance
Tropo	EA8XS	IL28GA	G6LEU	IO70ME	SSB	1985-06-29	2617
	SM1HOW	JO97GL	RA6DA	KN96SA	CW	2008-11-04	1917
	EA1FDI/p	IN52LW	EA8AVI	IL28FC	FM	2007-06-02	1747
	SP4MPB	KO03HT	G3AUS	IO80DN	SSB	2007-12-20	1694
	DK3BU	JO33NO	RA3LE	KO64AR	CW	2003-09-16	1624
Aurora	SM3AKW	JP92AO	SM5QA	JO89WJ	CW	2001-04-11	358
EME	PA0SSB	JO11WI	ZL3AAD	RE66GR	CW+SSB	1983-06-13	18773
	EA6ADW	JM19LU	VK5MC	QF02EJ	CW	1994-10-29	16348
	OZ4MM	JO55FJ	VK5MC	QF02EJ	?	1991-09-28	15811
	SK0UX	JO99BM	PY5ZBU	GG54DK	CW	2004-10-09	11265
	EA6ADW	JM19LU	JL1ZCG	PM95UM	CW	1997-11-15	10559

2.3 GHz

Mode	Station A		Station B		Mode	Date	Distance
Mode	Call	Locator	Call	Locator	Mode	Date	Distance
Tropo	SM0SBI	JO99CF	F5HRY	JN18EQ	CW	2004-12-10	1560
	EA7BVD/P	IM78JD	EA8XS/P	IL27GW	SSB	1984-07-08	1481
	G3XDY	JO02OB	SM0SBI	JO99CF	CW	2004-12-10	1329
	OE5VRL/5	JN78DK	G8JHL	IO83UM	CW	1987-11-06	1291
	G4PMK	IO93GT	OE5VRL/5	JN78DK	SSB/CW	1987-11-06	1249
EME	ZS6AXT	KG33VV	NU7Z	CN87ST	CW	1999-06-13	16475
	OK1KIR	JN79DW	W7GBI	DM43	CW	1991-08-03	9216
	SK0UX	JO99BM	WA6PY	DM13LA	CW	2004-05-16	8954
	PA0SSB	JO11WI	W6YFK	CM87WJ	CW+SSB	1981-04-05	8860
	OZ4MM/A	JO55FJ	W7GBI	DM43	?	1992-11-14	8605
Rainsc	I4CVC	JN54WH	OE5VRL/5	JN78DK	CW	2001-06-17	495
	IW4CJM	JN63IX	I1TEX	JN35SA	SSB	2000-04-16	427
	PA5DD	JO22IC	DL3IAS	JN49EJ	CW	2002-08-28	397

3.4 GHz

Mode	Station A		Station B		Mode	Date	Distance
Mode	Call	Locator	Call	Locator	Mode	Date	Distance
Tropo	G3XDY	JO02OB	LA6LCA	JO59FE	CW	2003-08-10	982
	G3LQR	JO02QF	SM6HYG	JO58RG	CW	1983-07-11	927
	PA5DD	JO22IC	LA6LCA	JO59FE	SSB	1999-07-28	867
	G6DER	IO93GN	DL6NAQ/P	JO40XI	SSB	1995-10-08	860
	PA0WWM	JO22FE	LA6LCA	JO59FB	SSB	1997-06-03	853
Rainsc	PA0BAT	JO31FX	OK2DL	JN89BO	CW	2002-06-20	730
	PA0WWM	JO22FE	DM2AFN	JO61WB	CW	2003-06-03	664
	PA5DD	JO22IC	DM2AFN	JO61WB	CW	2003-06-03	645
	DF6NA	JN49XS	PA5DD	JO22IC	CW	2003-07-20	451
	PA0BAT	JO31FX	DL6NCI	JO50VI	CW	2002-06-20	414

5.7 GHz

Mode	Station A		Station B		Mode	Date	Distance
Mode	Call	Locator	Call	Locator	Mode	Date	Distance
Tropo	OE5VRL	JN78DK	SM3BEI	JP81NG	CW	2006-01-14	1440
	F6APE	IN97QI	SM6ESG	JO67CC	CW	2003-11-06	1390
	G3XDY	JO02OB	OK2BFH	JN99FN	CW	2003-09-17	1244
	SM4DHN	JP60VA	G3XDY	JO02OB	CW	2004-09-09	1179
	G4BRK	IO91DP	SM6ESG	JO67CC	SSB	2003-07-15	1086
EME	ZS6AXT	KG33VV	W7CNK	EM15FI	CW	1999-11-22	14758
	OE9ERC	JN47VL	ZS6AXT	KG33VV	CW	1999-09-26	8347
	OK1KIR	JN79DW	VE4MA	EN19LU	CW	1995-05-10	7169
	OE9PMJ	JN47UL	VE4MA	EN19LU	CW	1994-12-11	7140
Rainsc	F5HRY	JN81EQ	DC6UW	JO44VJ	CW	2008-06-02	1494
	G3XDY	JO02OB	DB6NT	JO50VJ	CW	2005-07-28	761
	PA0BAT	JO31FX	OK2DL	JN89BO	CW	2002-06-20	730
	IW6ATU/6	JN63QM	OK2ZZ	JN89BO	SSB	2002-06-16	708
	HB9DRD	JN47HI	PA3CEG	JO33FB	CW	2002-07-30	653

10 GHz

Mode	Station A		Station B		Mode	Date	Distance
Mode	Call	Locator	Call	Locator	Mode	Date	Distance
Tropo	4X/DJ4AM	?	I/DJ3KM	?	SSB	2000-06-25	2079
	I0SNY/EA9	IM75IV	I0YLI/IE9	JM68NR	FM	1983-07-08	1660
	F6DKW	JN18CS	SM4DHN	JP60VA	CW	2003-11-06	1456
	G8KQW	IO91OC	SM4DHN	JP60VA	CW	2006-07-16	1348
	G3GNR	IO70WT	SM6ESG	JO67CC	CW	1997-01-14	1276
EME	DJ7FJ	JN48EG	ZL1GSG	RF72GW	CW	1997-03-12	18336
	G3WDG	IO92RG	VK2ALU	QF55KN	CW	1996-08-18	17000
	S56UUU	JN76	WA7CJO	DM33	CW	1994-11-27	9542
Rainsc	OZ1FF	JO45BO	F6APE	IN97QI	CW	2009-05-25	1099
	IW4CJM/p	JN72MA	DL6NCI	JO50VI	SSB	2002-06-20	959
	IW4CJM/p	JN72MA	DB6NI	JO50VI	SSB	2002-06-20	959
	OK1JKT	JO60OK	G4EAT	JO01HR	CW	2003-05-30	892
	OZ1FF	JO45BO	F6DKW	JN18CS	CW	2001-07-05	861

24 GHz

Mode	Station A		Station B		Mode	Date	Distance
Mode	Call	Locator	Call	Locator	Mode	Date	Distance
Tropo	IW3EHQ/3	JN66EB	I0LVA/3	JN72CD	CW+SSB	2000-06-18	459
	I3EME	JM68MA	I0LVA	JN62KA	CW	1999-09-11	444
	F5CAU/P	JN33DU	F6BVA/P	JN02SV	SSB	1997-10-25	399
	DH6FAE/P	JO40PL	HB9MIN/P	JN37OE	SSB	1993-02-03	397
	PA0EZ	JO22OE	G4KGC	IO92RG	CW	1997-01-14	390
Rainsc	LX1DB	JN39CO	F2CT/p	JN31IQ	CW	2008-06-24	881
	DB6NT	JO50VJ	PA0BAT	JO31FX	CW	2005-07-28	412
	PA0BAT	JO31FX	DB6NT	JO50TI	CW	2003-06-03	404
	DF6NA	JN49XS	PA0BAT	JO31FX	CW	2008-05-29	348
	OE5VRL/5	JN78DK	DL6NCI	JO50VI	CW	1998-06-07	280

47 GHz

Mode	Station A		Station B		Mode	Date	Distance
Mode	Call	Locator	Call	Locator	Mode	Date	Distance
Tropo	F5CAU/P	JN24PD	F6BVA/P	JN12GM	SSB	1998-12-26	287
	OE5VRL/5	JN78DK	OK1AIY/p	JO70SQ	CW	2006-11-07	266
	F6BVA	JN33DU	F5CAU	JN14SC	SSB	1998-10-03	222
	F6BVA/P	JN12GM	F5CAU/P	JN14SC	SSB	1998-05-15	194
	HB9MIN/P	?	DF7FJ/P	?	SSB	1994-10-05	184

75 GHz

Mode	Station A		Station B		Mode	Date	Distance
Mode	Call	Locator	Call	Locator	Mode	Date	Distance
Tropo	OE3WOG/p	JN77XX	OE5VRL/5	JN78DJ	SSB	2009-04-09	132
	HB9MIO/P	JN36VR	DK4GD/P	JN47BR	SSB	1995-07-07	114
	OE2JOM/2	JN67NT	OE3WOG/5	JN78CJ	CW	2006-11-19	104
	OZ1UM/P	JO55WX	OZ/F1OIH/P	JO56GC	SSB	1996-06-16	84
	SP6RYL	JO80DL	OK1UFL/p	JO70PO	SSB	2008-04-13	72

122 GHz

Mode	Station A		Station B		Mode	Date	Distance
Mode	Call	Locator	Call	Locator	Mode	Date	Distance
Tropo	DL2AM/p	JN57QB	FC0DA/p	JN57AL	CW	2009-08-21	111
	OK1AIY/p	JO70SP	OK1UFL/p	JO70RN	CW	2009-08-30	11

134 GHz

Mode	Station A		Station B		Mode	Date	Distance
Mode	Call	Locator	Call	Locator	Mode	Date	Distance
Tropo	DC0DA/p	JO31RQ	DF6VB	JO31RQ	CW	2009-06-29	0.5

145 GHz

Mode	Station A		Station B		Mode	Date	Distance
Mode	Call	Locator	Call	Locator	Mode	Date	Distance
Tropo	DB6NT/P	JO50XL	DL6NCI/P	JO50VA	SSB	1997-04-07	52
	OZ1UM/P	?	OZ9ZI/P	?	?	1994-07-02	11
	G4FRE/P	JO01BX	G7FRE/P	JO01BX	SSB	2000-06-01	1

241 GHz

Mode	Station A		Station B		Mode	Date	Distance
Mode	Call	Locator	Call	Locator	Mode	Date	Distance
Tropo	DB6NT/P	JO60TH	DF9LN/P	JO60TI	SSB	1995-06-26	2
	OZ/DB6NT/P	?	OZ/DF9LN	?	?	1993-06-10	0.5

474 THz

Mode	Station A		Station B		Mode	Date	Distance
Mode	Call	Locator	Call	Locator	Mode	Date	Distance
Tropo	DB6NT	JO50VJ	DG8EB	JO60LK	CW	2004-04-21	83
	G8LSD/P	JO01BB	G0MRF/P	IO90MX	CW	2003-10-08	77
	OZ1IPU	?	OZ1HDA	?	?	1992-09-16	42

Notes

The abbreviations used in the propagation mode column are:

Tropo	Tropospheric
Aurora	Auroral
Spor-E	Sporadic E
Meteor	Meteor scatter
EME	Earth-Moon-Earth (Moonbounce)
F2	F2 propagation
TEP	Trans-Equatorial Propagation
Au-Es	Auroral sporadic E
Iono	Ionospheric scatter
FAI	Field Aligned Irregularities
Rainsc	Rain scatter

The distances were calculated using the International Ellipsoid of 1924 (polar radius 6356.912 km, equatorial radius 6378.388 km).

A description of the method used to calculate distances, with C source code, is available for download as a Word 6 file (225k).

Propagation modes are those reported by the stations concerned. However, it can sometimes be very difficult to distinguish between propagation modes. This is especially so on 50 MHz, where mixed-mode QSOs are common, and to a lesser extent it applies on 144 MHz. The propagation information should be read with this in mind.

Station positions were taken from the best available information, in the following order of preference:

Exact latitude and longitude where known
Locator sub-square center if given
Approximate latitude and longitude from geographical location.
Distance as claimed by the QSO participants.
Corner of locator square nearest to QSO partner

Calculated distances may change if better information on station location becomes available.

If you have any information on a possible record or exceptionally long distance QSO please send it to the IARU Region 1 VHF/UHF/Microwave DX record co-ordinator:

Tommy, SM6NZB, sm6nzb@ssa.se

Or via packet to no packet adress

Other records tables

The Swiss ATV association is collating a list of world ATV DX records. See their web page at http://www.cmo.ch/swissatv

G3PHO maintains a table of UK terrestrial and UK and World EME records.

Please let SM6NZB know if there are any other international DX record tables which could be listed here