OI5AY — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Finland Most frequent locator attributed to this token: KP30

Receiver-side FT8 activity involving OI5AY, decoded by SO8OO in southeastern Poland. 849 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 17 UTC dates in the available aggregate history. Observed between 2026-06-11 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 849 FT8 messages attributed to OI5AY as the transmitting token by decoded message structure across 17 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (45%), followed by 160 m (20%) and 40 m (18%). Most decodes (83%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (63%); the estimated median was -4.5 dB.

Overview

849

Messages attributed

UTC dates decoded

Active 15-min windows

-4.5 dB

Estimated median S/N

Bands

160m · 166 80m · 383 60m · 96 40m · 156 20m · 48

First attributed message: 2026-06-11
Last attributed message: 2026-10-06 11:25 UTC

Observed FT8 message patterns

Attributed sample: 849 messages
Active dates: 17 UTC dates
Estimated median S/N: -4.5 dB
Estimated 10th-90th percentile: -16 to +5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 97, moderate (-15 to -9 dB) 217, strong (≥ -8 dB) 535.

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 OI5AY in decoded directed-looking exchanges:

G8OO · England ×2 HF5A · Poland ×2 OH2TWI · Finland ×2 OK1XV · Czech Republic ×2 PA3FR · Netherlands ×2 R2UZ/P · European Russia ×2 SQ9PBV · Poland ×2 E70SZ · Bosnia-Herzegovina ×2 YO6LM · Romania ×2 GX3RAF/P · England ×2 GU4WRP · Guernsey ×2 9A5E · Croatia

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 OI5AY

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: KP30 · 385 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,219 km (approx.)
Last such locator decoded: 2026-10-06 11:24 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	OI5AY S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-06 11:07	40m	-17 / -	SP7OK	- / -	4	Partial capture
10-06 04:35	80m	-7 / -	EA1IOK	-7 / -11	7	Partial capture
10-06 04:34	80m	-12 / -16	GW4HZA	-7 / -	5	✓ Closing observed
10-06 04:33	80m	-16 / -	KP2B	- / -	2	Partial capture
10-06 04:31	80m	-10 / +6	OH5BM	+7 / -	5	✓ Full exchange observed
10-06 04:29	80m	-6 / -5	GU4WRP	-4 / -5	5	✓ Full exchange observed
10-05 19:25	40m	-15 / -	A41DV	- / -	3	Partial capture
10-05 04:39	80m	- / -	ES2DR	-7 / -	3	Partial capture
10-05 04:34	80m	-3 / -19	EA3EDU	-10 / -15	5	✓ Full exchange observed
10-05 04:33	80m	-6 / -21	GU4WRP	-6 / -25	9	✓ Full exchange observed
10-05 03:37	40m	- / -9	YO9HP	-6 / -	2	✓ Closing fragment
10-05 03:21	40m	- / -9	YO6LM	-5 / -	3	✓ Closing fragment
10-05 03:20	40m	- / -11	UX7UU	-4 / -	3	✓ Closing fragment
10-04 04:17	40m	-4 / -	SV5AZK	- / -	3	Partial capture
10-04 04:15	40m	-14 / -	7Z1IS	- / -	3	Partial capture
10-03 19:36	40m	-9 / -	SQ100LKK	- / -7	3	Partial capture
10-01 20:39	40m	- / -8	RW3DDZ	-10 / -	5	✓ Closing fragment
10-01 20:39	40m	-4 / +5	UX5UW	-14 / -	4	✓ Full exchange observed
10-01 20:37	40m	-4 / -	RD0L	- / -	3	✓ Closing fragment
10-01 20:26	40m	-10 / -	HL2CFY	- / -	2	Partial capture
10-01 20:19	80m	+4 / -	TF4M	- / +2	3	✓ Closing fragment
10-01 17:42	40m	-3 / -	A41ED	- / -	3	Partial capture
10-01 17:41	40m	+1 / -	A41KB	- / -	3	Partial capture
10-01 17:39	40m	+5 / -	HZ1KS	- / -	2	Partial capture
09-29 19:04	160m	-8 / -21	DH7SB	-6 / +6	7	✓ Full exchange observed
09-19 19:26	160m	- / -	OK1DXR	+3 / -	6	Partial capture
09-19 19:25	160m	- / -	DD3KF	-5 / -	3	Partial capture
09-19 19:22	160m	-17 / -15	R3AQ	-16 / +9	2	Partial capture
09-17 21:03	40m	- / -5	DL8HXP	+2 / -	2	Partial capture
09-17 20:58	40m	-2 / -	M5BFL	- / -	2	Partial capture
09-17 20:56	80m	+7 / -	EX7DY	- / -	3	Partial capture
09-17 20:46	80m	+3 / -	DO5HOK	- / -	3	Partial capture
09-17 20:43	80m	-2 / -4	SA7BYQ	-2 / +6	2	Partial capture
09-17 20:35	80m	0 / -	SQ100PKP	- / +4	4	Partial capture
09-17 20:34	80m	+5 / +9	R3PLN	0 / +6	4	✓ Full exchange observed
09-17 20:31	80m	- / -2	SA7BYQ	-12 / -	3	✓ Closing fragment
09-17 20:30	80m	- / -	YT1VDA	+7 / -	3	Partial capture
09-17 20:30	80m	0 / -	JG2CNZ	- / -16	2	✓ Closing fragment
09-17 20:28	80m	+2 / -	DO6KGS	- / -6	2	✓ Closing fragment
09-17 20:25	80m	-2 / -4	DJ8KM	-6 / +7	6	✓ Full exchange observed
09-17 20:24	80m	+1 / -9	SP7AAO	+7 / 0	5	✓ Full exchange observed
09-17 20:19	160m	- / -	SV8QG	-8 / -	2	Partial capture
09-17 20:19	160m	- / -14	UX5XK	+8 / -	3	Partial capture
09-17 20:14	80m	-1 / -14	PA3GDY	-1 / -	5	Partial capture
09-17 20:13	80m	+1 / -	R6FX	-8 / +6	5	Partial capture
09-17 20:12	80m	- / -	OH6NIO	-12 / -	2	Partial capture
09-17 20:09	80m	+4 / -11	SP6FME	+18 / +6	10	✓ Full exchange observed
09-17 20:07	80m	-1 / -1	UA3RMB	-9 / +7	6	✓ Full exchange observed
09-17 20:06	80m	-3 / -11	DO5WG	-8 / +7	4	✓ Full exchange observed
09-17 20:04	80m	-3 / -	M8FQT	- / -4	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
032300  -1 2416  OI5AY YO6LM 73
033745  -5  987  OI5AY YO9HP -09 (x2)
192500 -13 1780  A41DV OI5AY KP30 (x3)
192945 -15 1780  S79KW OI5AY KP30
110730 -21 1626  SP7OK OI5AY KP30 (x4)
112330 -24 1627  DL0HAM OI5AY KP30
112400 -21 1626  SP7OK OI5AY KP30
112530 -15 1566  LB3GK OI5AY +27
112545 -11 1554  OI5AY UT3RO KO60

80m

UTC    dB Audio  Message
043300 -18 1744  KP2B OI5AY KP30 (x2)
043400 -12 1745  GW4HZA OI5AY KP30 (x2)
043445  -8  613  OI5AY GW4HZA -16 (x2)
043530 -10 1744  GW4HZA OI5AY 73
043545  -6  559  OI5AY EA1IOK IN62
043600  -8 1744  EA1IOK OI5AY -11
043615  -8  560  OI5AY EA1IOK IN62
043630  -6 1744  EA1IOK OI5AY -09
043645 -14 1745  OI5AY R1BDX KO59
043645  -9  559  OI5AY EA1IOK IN62 (x3)

160m

UTC    dB Audio  Message
192615  +8 1295  OI5AY OK1DXR JO60
192645  +7 1168  OI5AY OM3CND JN99
192645  +8 1295  OI5AY OK1DXR JO60
192645  -4 2750  OI5AY DD3KF JO30
192715  +6 1295  OI5AY OK1DXR JO60 (x4)
190415  -7 2302  DH7SB OI5AY KP30 (x2)
190500  -9  999  OI5AY DH7SB -21
190515  -7 2302  DH7SB OI5AY R+06
190530  -4  999  OI5AY DH7SB RR73
190545  -8 2302  DH7SB OI5AY R+06 (x2)

60m

UTC    dB Audio  Message
191300 -10 1980  OI5AY ES2HV R+02
191315  -1 2534  ES2HV OI5AY RR73
191330 -10 1980  OI5AY ES2HV 73
191345  -9 2534  ES2HV OI5AY 73
191400  -7  582  OI5AY SV9/TF1OL -12
191415  -4 2534  GX3RAF/P OI5AY R-13
191430 -10  582  <OI5AY> SV9/TF1OL RR73
191430  -5  963  OI5AY G3UHU IO80
191445  -2 2534  G3UHU OI5AY -09
191500 -12  963  OI5AY G3UHU R-01
191515  +0 2534  G3UHU OI5AY RR73
191530 -10  963  OI5AY G3UHU 73
191545  -2 2534  G3UHU OI5AY 73
191615  -2 2534  GX3RAF/P OI5AY KP30 (x2)

20m

UTC    dB Audio  Message
150330  -6 1989  OI5AY UR5XEJ RR73
150330  +3 2656  OI5AY DL1R JN58
150430 -14 2077  OI5AY R9FDE/P LO86
150500 -24 1916  OI5AY HA3HZ JN96
150500  +4 2656  OI5AY DL1R JN58
150530 -10 2077  OI5AY R9FDE/P 73
150530 -18 1915  OI5AY HA3HZ JN96
150530  +6 2656  OI5AY DL1R JN58 (x3)
150900  -6 2611  OI5AY F6FTB JN27 (x2)
151600  -8 2022  OI5AY RA1QX KO99 (x3)

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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