HA1RJ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Hungary Most frequent locator attributed to this token: JN87

Receiver-side FT8 activity involving HA1RJ, decoded by SO8OO in southeastern Poland. 2,171 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 39 UTC dates in the available aggregate history. Observed between 2026-07-18 and 2026-10-06.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 2,171 FT8 messages attributed to HA1RJ as the transmitting token by decoded message structure across 39 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (51%), followed by 80 m (49%). Most decodes (91%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (99%); the estimated median was +12 dB.

Overview

2,171

Messages attributed

UTC dates decoded

244

Active 15-min windows

+12 dB

Estimated median S/N

Bands

80m · 1,053 40m · 1,118

First attributed message: 2026-07-18
Last attributed message: 2026-10-06 18:03 UTC

Observed FT8 message patterns

Attributed sample: 2,171 messages
Active dates: 39 UTC dates
Estimated median S/N: +12 dB
Estimated 10th-90th percentile: 0 to +19 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 31, strong (≥ -8 dB) 2,139.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with HA1RJ in decoded directed-looking exchanges:

HA7WFF · Hungary ×3 JF8QNF · Japan ×3 DL3MIB · Fed. Rep. of Germany ×2 DL6EL · Fed. Rep. of Germany ×2 DL9KM · Fed. Rep. of Germany ×2 F1PBZ · France ×2 HA3GO · Hungary ×2 RD7LC · European Russia ×2 SM7WNM · Sweden ×2 DO8JB · Fed. Rep. of Germany ×2 OH7FAE · Finland ×2 R3KLE · European Russia ×2

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to HA1RJ

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator: JN87 · 1,415 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 444 km (approx.)
Last such locator decoded: 2026-10-06 18:02 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTC	Band	HA1RJ S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-06 18:02	80m	+14 / -15	SQ8AA	+6 / -6	6	✓ Full exchange observed
10-06 17:58	80m	- / -	SQ8AA	+3 / -	3	Partial capture
10-06 17:55	80m	+13 / -1	RA1QCX	+1 / -24	17	✓ Full exchange observed
10-04 18:46	80m	+15 / -	MM0ULL	- / -21	5	✓ Closing fragment
10-04 18:23	40m	- / -8	EA9DX	-3 / -	2	Partial capture
10-04 16:38	40m	+3 / -	IQ2AAH	- / -	4	Partial capture
10-04 16:34	40m	+7 / -	F6DJL	-5 / -4	7	✓ Full exchange observed
10-04 16:25	80m	+14 / -17	UA9FMT	0 / -15	4	✓ Full exchange observed
10-04 16:06	40m	+13 / -	BG8HNC	- / -	5	Partial capture
10-03 17:03	40m	+9 / -	UA9UT	- / -13	6	✓ Closing fragment
10-03 16:36	40m	+9 / -	BG8HNC	- / -	12	Partial capture
10-03 16:07	40m	+10 / -	YC6HIR	- / -	2	✓ Closing fragment
10-03 16:02	40m	+8 / -	EX7CQ	- / -22	7	✓ Closing fragment
10-03 15:57	40m	+7 / +7	IR8PR	-6 / -	3	✓ Closing observed
09-30 19:05	80m	+6 / -	UK8FCM	- / -	4	Partial capture
09-30 16:51	80m	+11 / -	4U1ITU	- / -	8	Partial capture
09-28 18:49	80m	+17 / -	HB3YPJ	- / -13	2	✓ Closing fragment
09-28 17:52	80m	+22 / -	HA1KD	- / -	2	Partial capture
09-28 17:48	80m	+14 / +1	DL6EL	+6 / -3	5	✓ Full exchange observed
09-28 17:46	80m	+17 / -	LB6BK	- / -13	4	✓ Closing fragment
09-28 17:41	80m	+22 / -	RC9WC	-7 / -14	3	✓ Closing observed
09-28 17:39	80m	- / -	DL/AD2LX	-5 / -	3	✓ Closing fragment
09-28 17:39	80m	+20 / +1	SP2L	+7 / -11	8	✓ Full exchange observed
09-28 17:38	80m	+22 / +3	SV8LMQ	-6 / -10	5	✓ Full exchange observed
09-28 17:34	80m	+19 / +2	TK4QP	+1 / -7	5	✓ Full exchange observed
09-27 18:08	80m	+25 / -	EO210WLP	- / -11	4	Partial capture
09-27 18:06	80m	+18 / -14	ES0RY	-8 / -8	5	✓ Full exchange observed
09-27 18:03	80m	+4 / -	DK8HC/P	- / 0	2	Partial capture
09-27 16:54	80m	+21 / -	JA5NPV	- / -	3	Partial capture
09-27 16:27	80m	+20 / -13	US1MM	+6 / -11	8	✓ Full exchange observed
09-27 15:36	40m	+11 / -	RA9HBQ	- / -21	5	Partial capture
09-27 15:29	40m	+11 / -	SO3UOU/M	- / 0	12	Partial capture
09-27 15:21	40m	+11 / -	YE1BUB	- / -	13	Partial capture
09-27 15:20	40m	- / -	PA7D	-8 / -	2	Partial capture
09-27 15:14	40m	+12 / +2	OZ6FH	-7 / -	5	✓ Full exchange observed
09-27 15:10	40m	+8 / +4	EW8DU	-2 / -25	7	✓ Full exchange observed
09-27 15:00	40m	+7 / -	DG9SEH	- / -	7	Partial capture
09-27 02:42	80m	- / -	R4AGE	+5 / -	3	Partial capture
09-27 02:40	80m	+12 / -	AG2K	- / -	7	Partial capture
09-27 02:10	80m	+20 / -	W3DIY	- / -12	8	Partial capture
09-27 02:04	80m	+22 / -8	F5RRS	-2 / -13	5	✓ Full exchange observed
09-27 01:59	80m	+21 / -17	KC1TRF	-11 / -17	24	✓ Full exchange observed
09-27 01:57	80m	+20 / -9	GM6URC	-4 / -7	5	✓ Full exchange observed
09-26 19:33	80m	+11 / -	HA7VC/P	- / +4	3	Partial capture
09-26 19:23	80m	- / +7	RA4CQW/P	-5 / -	2	Partial capture
09-26 19:23	80m	+7 / -	HA7VC/P	- / -	5	Partial capture
09-26 18:59	80m	+14 / 0	HB3YYA	-1 / -18	9	✓ Full exchange observed
09-26 18:20	80m	+20 / -	V66XEJ	- / -	4	Partial capture
09-26 17:50	40m	+10 / -	EX7DY	- / -	8	Partial capture
09-26 17:15	80m	+15 / +4	OE2AGZ	-14 / -17	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

80m

UTC    dB Audio  Message
175845 +16  513  RA1QCX HA1RJ JN87
175900  +4 2217  HA1RJ SQ8AA KN19
175900  -1  513  HA1RJ RA1QCX KP80
175915 +14  512  RA1QCX HA1RJ -24
175930  +2  513  HA1RJ RA1QCX R-01
175945 +14  512  RA1QCX HA1RJ -24
180000  +4  512  HA1RJ RA1QCX R-02
180015 +13  512  RA1QCX HA1RJ RR73
180030  +3  512  HA1RJ RA1QCX 73
180215 +16  512  SQ8AA HA1RJ JN87 (x2)
180300  +8 2219  HA1RJ SQ8AA -15
180315 +16  512  SQ8AA HA1RJ R-06
180330  +4 2220  HA1RJ SQ8AA RR73
180345 +14  512  SQ8AA HA1RJ 73

40m

UTC    dB Audio  Message
160730 +16  549  BG8HNC HA1RJ JN87 (x2)
163445  +4  552  F6DJL HA1RJ JN87
163500  -7  976  HA1RJ F6DJL +16
163515  +6  552  F6DJL HA1RJ R-04
163530  -8  976  HA1RJ F6DJL +16
163545  +9  552  F6DJL HA1RJ R-06
163600  -1  551  HA1RJ F6DJL RR73
163615  +9  552  F6DJL HA1RJ 73
163830  +6  550  IQ2AAH HA1RJ JN87 (x4)
182315  -4 1491  HA1RJ EA9DX -08 (x2)

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

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