OK1FAN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Czech Republic Most frequent locator attributed to this token: JN79

Receiver-side FT8 activity involving OK1FAN, decoded by SO8OO in southeastern Poland. 650 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 27 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-11.

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 650 FT8 messages attributed to OK1FAN as the transmitting token by decoded message structure across 27 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (52%), followed by 80 m (18%) and 20 m (16%). Several six-hour UTC windows tied for the largest share (72%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (81%); the estimated median was -2 dB.

Overview

650

Messages attributed

UTC dates decoded

Active 15-min windows

-2 dB

Estimated median S/N

Bands

160m · 21 80m · 115 60m · 77 40m · 336 20m · 101

First attributed message: 2026-06-07
Last attributed message: 2026-09-11 19:32 UTC

Observed FT8 message patterns

Attributed sample: 650 messages
Active dates: 27 UTC dates
Estimated median S/N: -2 dB
Estimated 10th-90th percentile: -11 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 109, strong (≥ -8 dB) 525.

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 OK1FAN in decoded directed-looking exchanges:

M7PUC · England ×2 SP5DFK · Poland ×2 SN5J · Poland BG5WDR · China BG7ZHS · China BI4IWL · China CU7MD · Azores EA8UP · Canary Islands F4HTA · France F4NBB · France JG3LGD · Japan JY5CG · Jordan

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 OK1FAN

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: JN79 · 340 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 491 km (approx.)
Last such locator decoded: 2026-09-11 19:25 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	OK1FAN S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-11 19:31	80m	-7 / -5	SP5DFK	+12 / -4	5	✓ Full exchange observed
09-11 19:25	80m	-2 / -	G8WRL	- / -	2	Partial capture
09-11 19:22	80m	-4 / -2	DG5MLA	+12 / -	7	✓ Full exchange observed
09-11 19:20	80m	-1 / -11	DO4FBI	-21 / -	3	✓ Closing observed
08-31 04:59	40m	- / +6	YL2NX	0 / -	2	✓ Closing fragment
08-31 04:56	40m	- / -15	EN35UKR	+2 / -	2	Partial capture
08-31 04:56	40m	-1 / -	<...>	- / -1	3	Partial capture
08-31 04:55	40m	- / -	R2AL	+7 / -	4	Partial capture
08-31 04:53	40m	-2 / -	W1LE	- / -9	4	✓ Closing fragment
08-31 04:50	40m	-3 / -	N4DWD	- / -7	4	✓ Closing fragment
08-31 04:48	40m	-11 / -	EC1DD	-11 / -3	2	Partial capture
08-29 20:09	60m	- / -	EA7Z	-18 / -	2	Partial capture
08-29 20:09	60m	-14 / -5	PE1MHY	-4 / +6	4	✓ Full exchange observed
08-29 20:06	60m	-13 / -13	OH2GQC	-13 / -15	5	✓ Full exchange observed
08-29 20:01	40m	+7 / +2	G0BKL	-9 / -7	7	✓ Full exchange observed
08-29 19:57	40m	-3 / -	OR1A	- / -21	3	Partial capture
08-29 19:50	40m	+3 / -	<...>	- / -11	3	Partial capture
08-29 19:45	40m	0 / -	A93MO	- / -	3	Partial capture
08-29 19:40	40m	+5 / -	<...>	- / -7	2	Partial capture
08-23 20:59	40m	+2 / -	BG2GWN	- / -	2	Partial capture
08-23 20:55	40m	+7 / -2	E75C	-2 / +7	4	✓ Full exchange observed
08-23 20:53	40m	+1 / -	EA8J	- / -	3	Partial capture
08-23 20:01	20m	-8 / -	BG7ZHS	- / -	2	✓ Closing fragment
08-23 19:54	20m	+3 / -	F4HTA	- / +7	3	✓ Closing fragment
08-23 19:49	20m	+4 / -10	F4NBB	+2 / -9	5	✓ Full exchange observed
08-23 19:47	20m	+6 / -	LA8MGA	- / -	2	Partial capture
08-23 19:39	20m	+9 / -	XU7O	- / -18	6	Partial capture
08-23 19:32	20m	+10 / -	BG5WDR	- / -12	4	✓ Closing fragment
08-23 19:31	20m	+8 / -	YB7FII	- / -	2	Partial capture
08-23 19:25	20m	+11 / -2	BI4IWL	+4 / -1	4	✓ Full exchange observed
08-23 19:23	20m	+15 / -9	JG3LGD	-8 / +2	5	✓ Full exchange observed
08-09 13:46	40m	-21 / -	ZL1RPC/P	- / -	2	Partial capture
08-05 21:23	160m	-10 / -	IK2TPX	- / -7	2	Partial capture
08-05 21:18	160m	-15 / -9	SN5J	+8 / -	6	✓ Closing observed
08-04 04:28	40m	- / -	UA4FKT	-10 / -	2	Partial capture
08-04 03:59	40m	- / -	UA4FKT	-8 / -	2	Partial capture
08-01 20:55	40m	-4 / -	PD0TDK	- / -9	2	✓ Closing fragment
08-01 20:52	40m	+1 / -	TJ1GD/P	- / -7	4	Partial capture
08-01 20:48	40m	0 / -2	M7PUC	-18 / +3	7	✓ Full exchange observed
08-01 20:43	40m	-15 / -	OH3JP	- / -4	3	✓ Closing fragment
08-01 20:36	40m	-4 / -7	DK4BP	-20 / -4	5	✓ Full exchange observed
08-01 20:34	40m	-4 / -	DL9FCK	- / -5	2	✓ Closing fragment
08-01 20:31	40m	-9 / 0	M0GDX	-20 / -5	4	✓ Full exchange observed
08-01 20:25	40m	-3 / -9	DK2SP	-10 / +4	5	✓ Full exchange observed
08-01 20:20	40m	-5 / -	IZ1HJU	- / -14	3	✓ Closing fragment
08-01 20:17	40m	-7 / -	SP3FNW	- / -23	5	✓ Closing fragment
08-01 20:12	40m	-2 / -	JA5MHD	- / +1	2	Partial capture
08-01 20:11	40m	-5 / -	SP3FNW	- / -	3	Partial capture
08-01 20:08	40m	-4 / -	M0VCP	- / -3	4	✓ Closing fragment
08-01 20:03	40m	+1 / -	ZL4KX	- / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
192130 -24 1504  OK1FAN DO4FBI RR73
192245  -4  354  DG5MLA OK1FAN JN79
192300  +8 2652  OK1FAN DG5MLA -02
192315  -5  354  DG5MLA OK1FAN JN79
192330 +16 2652  OK1FAN DG5MLA -02
192345  +2  354  DG5MLA OK1FAN R+12
192400 +12 2652  OK1FAN DG5MLA RR73
192415  -8  354  DG5MLA OK1FAN 73
192515  +2  353  G8WRL OK1FAN JN79 (x2)
193115 +13  352  OK1FAN SP5DFK JO82
193130  -3  354  SP5DFK OK1FAN -04
193145 +12  353  OK1FAN SP5DFK R-05
193200 -11  354  SP5DFK OK1FAN RR73
193215 +11  353  OK1FAN SP5DFK 73

40m

UTC    dB Audio  Message
045430  -4 1039  W1LE OK1FAN R-09 (x2)
045515  +4  780  OK1FAN R2AL KO85 (x3)
045630  -3 1589  <...> OK1FAN JN79
045645  +7  780  OK1FAN R2AL KO85
045645  +2 1483  OK1FAN EN35UKR -15
045700  -1 1589  <...> OK1FAN JN79
045715  +3 1483  OK1FAN EN35UKR -13
045730  +0 1589  <...> OK1FAN R-01
045915  +1  372  OK1FAN YL2NX +06 (x2)
050500 -13 2638  PA2HD OK1FAN JN79
050600 -12 2638  N5XZ OK1FAN JN79

60m

UTC    dB Audio  Message
200715 -12 1833  OH2GQC OK1FAN -15
200730 -13 1430  OK1FAN OH2GQC R-13
200745 -13 1833  OH2GQC OK1FAN RR73
200800 -13 1430  OK1FAN OH2GQC 73
200845 -16 1833  CQ OK1FAN JN79 (x2)
200930  -6 1195  OK1FAN PE1MHY -05
200930 -18 1833  OK1FAN EA7Z IM67
200945 -12 1833  PE1MHY OK1FAN R+06
201000  -1 1195  OK1FAN PE1MHY RR73
201000 -17 1834  OK1FAN EA7Z IM67
201015 -15 1833  PE1MHY OK1FAN 73
201315 -17 1834  CQ OK1FAN JN79                        a1 (x3)

20m

UTC    dB Audio  Message
194745  +5 2878  LA8MGA OK1FAN JN79
194845  +2 2878  BG5JGG OK1FAN JN79
194915  +5 2879  F4NBB OK1FAN JN79
194930  +4 2218  OK1FAN F4NBB -10
194945  +5 2879  F4NBB OK1FAN R-09
195000  -1 2218  OK1FAN F4NBB RR73
195015  +3 2877  F4NBB OK1FAN 73
195030  -8 2808  OK1FAN UA0LQE PN53
195430  -1 2878  F4HTA OK1FAN JN79 (x3)
195700  +8 2878  LA1QAA OK1FAN JN79
200130  -7 2878  BG7ZHS OK1FAN JN79
200230  -3 2878  AC8RJ OK1FAN JN79
200330  -9 2878  BG7ZHS OK1FAN 73

160m

UTC    dB Audio  Message
211700 -20 1496  CQ OK1FAN JN79                        a1 (x3)
211830  -9 1496  GM4JYB OK1FAN -05
211845 +11  454  OK1FAN SN5J KO02 (x4)
212030 -15 1496  SN5J OK1FAN RR73
212045  -3 1896  OK1FAN UA3ZUX KO90
212045  +2  454  OK1FAN SN5J 73
212230  -6 1496  CQ OK1FAN JN79 (x2)
212330 -12 1496  IK2TPX OK1FAN -07 (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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