IU0UYY — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN61

Receiver-side FT8 activity involving IU0UYY, decoded by SO8OO in southeastern Poland. 111 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-07-19 and 2026-09-21.

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 111 FT8 messages attributed to IU0UYY as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (51%), followed by 20 m (49%). Most decodes (51%) fell within the six-hour window 13:00-19:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

111

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 57 20m · 54

First attributed message: 2026-07-19
Last attributed message: 2026-09-21 01:56 UTC

Observed FT8 message patterns

Attributed sample: 111 messages
Active dates: 9 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -17 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 18, moderate (-15 to -9 dB) 47, strong (≥ -8 dB) 46.

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 IU0UYY in decoded directed-looking exchanges:

9A4ZM · Croatia ×2 UX7QV · Ukraine ×2 9A5AZK · Croatia A71CT · Qatar EA3HKA · Spain HB9EKJ · Switzerland LA8OKA · Norway RC9WC · Asiatic Russia TF4M · Iceland DJ0MAB · Fed. Rep. of Germany DK7ZT · Fed. Rep. of Germany EA1FKI · Spain

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 IU0UYY

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: JN61 · 61 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,158 km (approx.)
Last such locator decoded: 2026-09-21 01:55 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	IU0UYY S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-21 01:56	80m	-14 / -11	SQ6ELK	+7 / -	6	✓ Full exchange observed
09-21 01:53	80m	-14 / -	EK/RX3DPK	- / -	2	Partial capture
09-21 01:53	80m	- / -	F5RRS	+4 / -	4	Partial capture
09-21 01:52	80m	- / -	LZ2VQ	+8 / -	3	Partial capture
09-19 04:58	40m	- / -9	DJ0MAB	-6 / -	4	Partial capture
09-19 04:55	40m	- / -24	PE1NPS	-15 / -	2	✓ Closing fragment
09-19 04:52	40m	- / -3	DK7ZT	-3 / -	3	✓ Closing fragment
09-19 04:45	80m	-24 / -	DG0OBU	- / -	2	Partial capture
09-19 04:43	80m	- / -	DL1UDO	-11 / -	3	Partial capture
09-19 04:42	80m	- / -13	SQ6ELK	0 / -	4	Partial capture
09-18 01:03	80m	-12 / -	IK2WRV	-1 / -10	3	✓ Closing observed
09-18 01:03	80m	- / -	DO9BAU	+10 / -	13	Partial capture
09-18 01:03	80m	- / -	F5RRS	+3 / -	4	Partial capture
09-18 01:03	80m	- / -6	ON1JP	-18 / -	5	Partial capture
09-18 00:55	80m	-10 / -	ON3MOH	- / -18	14	Partial capture
09-18 00:55	80m	- / -	IK2WRV	0 / -	2	Partial capture
09-18 00:53	80m	- / -15	DK7ZT	+6 / -	5	Partial capture
09-18 00:19	40m	- / -1	UA4FKT	+16 / -	3	✓ Closing fragment
09-18 00:13	80m	-14 / -20	DO8JB	-7 / +1	11	✓ Full exchange observed
09-18 00:06	80m	- / -10	DK7ZT	+1 / -	5	Partial capture
09-18 00:06	80m	-7 / +2	DL3MIB	+14 / -25	13	✓ Full exchange observed
09-18 00:06	80m	- / -	F5RRS	+1 / -	4	Partial capture
09-17 23:41	40m	- / -19	EA1FKI	-11 / -	3	✓ Closing fragment
09-17 23:35	80m	- / -16	UX7QV	+8 / -	3	✓ Closing fragment
09-17 23:34	80m	- / -17	DK7ZT	+4 / -	4	Partial capture
09-17 23:34	80m	- / -	DL3MIB	+13 / -	7	Partial capture
09-17 23:32	80m	-2 / +3	9A4ZM	+12 / -	5	✓ Full exchange observed
09-17 23:31	80m	- / -	F5RRS	+1 / -	4	Partial capture
09-17 23:31	80m	- / -8	ON3MOH	-14 / -	2	Partial capture
09-17 18:27	40m	- / -16	SP9UPH	-15 / -	3	✓ Closing fragment
09-17 18:26	80m	- / -14	ES2AJ	+11 / -	2	Partial capture
09-17 18:25	40m	- / -16	F5PBG	-11 / -	3	✓ Closing fragment
09-17 18:20	80m	- / -	9A4ZM	+8 / -	2	Partial capture
09-17 17:38	40m	- / -	F6BHK	-6 / -	2	Partial capture
09-17 07:40	40m	- / -	9A3AUH	+3 / -	14	Partial capture
09-17 07:40	40m	- / -	OE8PIT	0 / -	4	Partial capture
09-17 07:40	40m	- / -4	UX7QV	-2 / -	3	✓ Closing fragment
09-15 21:24	80m	- / -	DO9BAU	+5 / -	13	Partial capture
09-15 21:24	80m	- / -19	DK7ZT	+7 / -	5	Partial capture
09-15 18:47	80m	- / -	9A3TGT	+14 / -	2	Partial capture
09-15 13:37	40m	- / -	S51PV	-12 / -	2	✓ Closing fragment
09-15 07:11	40m	- / -14	GJ0KYZ	-14 / -	2	✓ Closing fragment
09-15 06:40	40m	- / -12	9A4ZM	-1 / -	3	✓ Closing fragment
09-14 05:54	40m	- / -16	F1IQH	-20 / -	3	✓ Closing fragment
09-13 21:49	40m	- / -	F4BYA	-16 / -	3	Partial capture
09-13 21:47	40m	- / -9	M0BEW	-7 / -	2	✓ Closing fragment
09-13 21:42	80m	-17 / -	SV9MBH	-10 / -	2	✓ Closing observed
09-13 21:42	80m	- / -24	DK7ZT	+9 / -	5	Partial capture
09-13 21:29	40m	- / -17	YO4NF	-14 / -	3	✓ Closing fragment
07-22 14:16	20m	-8 / -	9A5AZK	- / +2	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
015300  +5 1877  IU0UYY F5RRS JN36
015330  +3  840  IU0UYY LZ2VQ KN23
015330  +1 1877  IU0UYY F5RRS JN36
015345 -15 1392  EK/RX3DPK IU0UYY JN61
015400  +4 1877  IU0UYY F5RRS JN36
015430  -4 1778  IU0UYY GM6URC -15
015430  +7 1877  IU0UYY F5RRS JN36
015515 -12 1392  EK/RX3DPK IU0UYY JN61
015600 +10 1607  IU0UYY SQ6ELK -11 (x2)
015645 -14 1392  SQ6ELK IU0UYY R+15
015700  +9 1607  IU0UYY SQ6ELK RR73 (x3)
015830  +1 1392  IU0UYY LZ2VQ KN23

40m

UTC    dB Audio  Message
234245  -9 1172  IU0UYY EA1FKI RR73
001900 +13  389  IU0UYY UA4FKT LO23 (x3)
045245  -1 1907  IU0UYY DK7ZT -03 (x3)
045515 -12 2093  IU0UYY PE1NPS R-24 (x2)
045815  +8 2877  IU0UYY DL7ARV JO62
045815  -3 1177  IU0UYY DJ0MAB JN49 (x5)

160m

UTC    dB Audio  Message
233315 -13 1141  IU0UYY 9A4ZM R+03

20m

UTC    dB Audio  Message
140215  -9 2494  TF4M IU0UYY R+05 (x2)
140915 -22 2123  UG4Y IU0UYY JN61
141045 -18 2113  RC9WC IU0UYY R-07 (x2)
141300  -9 1649  LA8OKA IU0UYY JN61 (x3)
141430  -9 1681  PA9R IU0UYY JN61
141530 -15 1674  EA3HKA IU0UYY R+09
141545  -7 1674  IU0UYY EA3HKA RR73
141600 -12 1674  EA3HKA IU0UYY 73
141630 -11 1474  9A5AZK IU0UYY JN61 (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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