IU2VUZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN45

Receiver-side FT8 activity involving IU2VUZ, decoded by SO8OO in southeastern Poland. 1,136 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 40 UTC dates in the available aggregate history. Observed between 2026-06-09 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 1,136 FT8 messages attributed to IU2VUZ as the transmitting token by decoded message structure across 40 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (52%), followed by 40 m (29%) and 80 m (16%). Most decodes (58%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

1,136

Messages attributed

UTC dates decoded

234

Active 15-min windows

-14 dB

Estimated median S/N

Bands

80m · 182 60m · 24 40m · 334 20m · 595 10m · 1

First attributed message: 2026-06-09
Last attributed message: 2026-09-21 06:16 UTC

Observed FT8 message patterns

Attributed sample: 1,136 messages
Active dates: 40 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -24 to -3.6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 485, moderate (-15 to -9 dB) 364, strong (≥ -8 dB) 287.

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 IU2VUZ in decoded directed-looking exchanges:

DG1KFR · Fed. Rep. of Germany ×3 DJ3HW · Fed. Rep. of Germany ×2 GW8DX · Wales ×2 ON1DGN · Belgium ×2 PD2WL · Netherlands ×2 SV5BYP · Dodecanese ×2 DL1UDO · Fed. Rep. of Germany ×2 F1PBZ · France ×2 IW0FGX · Italy ×2 F5RMK · France ×2 ON4MAP · Belgium ×2 7Z1XX · Saudi Arabia

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 IU2VUZ

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: JN45 · 893 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,075 km (approx.)
Last such locator decoded: 2026-09-21 06:13 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	IU2VUZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-21 08:59	40m	- / -25	PE2K	-10 / -	2	✓ Closing fragment
09-21 06:05	40m	-10 / -4	DH1NGL	-5 / +6	6	✓ Full exchange observed
09-20 20:19	40m	-11 / -	TM60LOUV	- / -	10	Partial capture
09-20 20:15	40m	-12 / -	9A/DK9RC	- / -	3	Partial capture
09-20 20:12	40m	-13 / -	IW9EWX	- / -	3	Partial capture
09-20 20:07	40m	-10 / -	RU4B	- / -	2	Partial capture
09-20 20:06	40m	-17 / -	DF9DL	- / +7	2	✓ Closing fragment
09-20 06:39	40m	- / -6	DG1ASD	-10 / -	2	✓ Closing fragment
09-20 06:34	40m	- / -6	SP2JEL	-2 / -	2	✓ Closing fragment
09-19 22:32	40m	-10 / -	TA4SSK	- / -6	2	Partial capture
09-19 22:18	40m	-6 / -	DD8HG	- / -10	2	Partial capture
09-19 21:37	40m	-7 / -	PA1AZ	- / -	6	Partial capture
09-19 21:32	40m	-5 / -	II9IABJ	- / -	4	Partial capture
09-19 21:27	40m	-10 / -9	GW0ARK	-4 / -	4	✓ Full exchange observed
09-19 21:25	40m	-8 / -	3E40CDW	- / -	3	Partial capture
09-19 21:24	40m	-6 / -	II9IABJ	- / -	2	Partial capture
09-19 18:52	40m	-11 / -	SP4KDK	- / -3	9	Partial capture
09-19 18:48	40m	- / -	SP4KDK	+7 / -	2	Partial capture
09-19 16:04	40m	- / -15	IK1MJK	-12 / -	4	✓ Closing fragment
09-19 15:01	40m	- / -9	DL4PY	-1 / -	3	✓ Closing fragment
09-18 07:38	40m	- / -8	OK1HEH	-8 / -	2	✓ Closing fragment
09-18 07:35	40m	- / -18	DG5YHK	-8 / -	2	Partial capture
09-18 06:02	40m	- / -20	ES2AJ	-3 / -	2	Partial capture
09-18 05:11	40m	-18 / -	KC4WQ	- / -9	2	Partial capture
09-17 21:53	40m	-12 / -	M0SQC	- / -	14	Partial capture
09-17 21:43	40m	- / -25	M0SQC	+3 / -	7	Partial capture
09-17 06:36	40m	- / -6	PD4RD	+10 / -	2	✓ Closing fragment
09-17 06:16	60m	- / -13	DH9DR	-6 / -	2	✓ Closing fragment
09-17 05:45	60m	- / -20	ON7KEI	-19 / -	2	Partial capture
09-17 05:41	60m	- / -22	DG1KFR	-10 / -	6	✓ Closing fragment
09-17 05:34	60m	- / -	HA5VQ	-7 / -	2	Partial capture
09-17 05:34	60m	- / -11	IK4CBO	-14 / -	2	Partial capture
09-17 05:34	60m	- / -	PE1NPS	-6 / -	4	Partial capture
09-17 05:22	60m	- / -9	IW0FGX	-24 / -	2	✓ Closing fragment
09-17 05:20	60m	- / -11	DJ1NE	-11 / -	3	✓ Closing fragment
09-16 21:35	60m	-21 / -	SP4NDY	- / +2	2	Partial capture
09-16 20:15	40m	- / -16	R5AV	-6 / -	2	✓ Closing fragment
09-16 08:45	40m	- / -20	S53AK	-10 / -	4	✓ Closing fragment
09-16 08:33	40m	- / -10	DL6ZNG	-2 / -	3	✓ Closing fragment
09-16 08:33	40m	- / -	S53AK	-9 / -	4	Partial capture
09-16 08:24	40m	- / -2	IK4TVP	-20 / -	2	✓ Closing fragment
09-16 08:13	40m	- / -2	DL6EL	-11 / -	3	✓ Closing fragment
09-16 06:08	40m	- / -14	SP1JQJ	+5 / -	4	✓ Closing fragment
09-16 06:01	80m	- / -13	F4GVO	-14 / -	2	✓ Closing fragment
09-16 05:35	80m	- / -19	IN3OWY	-7 / -	3	✓ Closing fragment
09-16 05:25	80m	- / -8	F6FTB	-12 / -	3	✓ Closing fragment
09-15 22:47	80m	- / -15	SP1NL	+14 / -	3	✓ Closing fragment
09-15 22:39	80m	-6 / -18	ON4MAP	-12 / -4	3	Partial capture
09-15 22:09	80m	- / -5	SN1A	+8 / -	3	✓ Closing fragment
09-14 22:01	40m	- / 0	PD7BDN	0 / -	6	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
051300 -21 2435  CQ IU2VUZ JN45 (x3)
060500  -5 1602  IU2VUZ DH1NGL -04
060515 -11 2686  DH1NGL IU2VUZ R+06
060530  -5 1602  IU2VUZ DH1NGL -04
060545 -10 2685  DH1NGL IU2VUZ R+01
060600  -2 1602  IU2VUZ DH1NGL RR73 (x2)
060745 -14 2686  CQ IU2VUZ JN45 (x2)
061345 -14 2685  IS0UWS IU2VUZ JN45 (x2)
085945 -12  795  IU2VUZ PE2K R-25 (x2)

60m

UTC    dB Audio  Message
053445  -9 1931  IU2VUZ HA5VQ JN97
053515  -9 2430  IU2VUZ PE1NPS JO22
053515  -5 1931  IU2VUZ HA5VQ JN97
053545  -8 2430  IU2VUZ PE1NPS JO22
053845 -19 1195  IU2VUZ DL3FBI R-09
054115  -9 2316  IU2VUZ DG1KFR JO33 (x6)
054515 -21 1387  IU2VUZ ON7KEI JO21 (x2)
061645  -8 1175  IU2VUZ DH9DR -13 (x2)

80m

UTC    dB Audio  Message
224800 +16 2655  IU2VUZ SP1NL 73
225500  +1 2057  IU2VUZ II8IHBC -24
230015 -22 2655  CQ IU2VUZ JN45 (x5)
052515 -13 2150  IU2VUZ F6FTB JN27 (x3)
053545 -11 2656  IU2VUZ IN3OWY JN56 (x3)
060145 -14 2434  IU2VUZ F4GVO -13 (x2)

20m

UTC    dB Audio  Message
202130 -16 2469  M7CYY IU2VUZ 73
205700  +1 1269  IU2VUZ GB64MOD -08
055615 -22 2270  CQ IU2VUZ JN45 (x8)
173645 -14 2169  EX7DY IU2VUZ JN45
174015 -11 2169  CQ IU2VUZ JN45 (x2)
174545 -13 2169  DB1EW IU2VUZ +04
195845 -22 2170  CQ IU2VUZ JN45

10m

UTC    dB Audio  Message
111830  -5  828  IU2VUZ IT9VCE RR73
112215 -10 2278  IU2VUZ 7Z1XX LL07 (x7)
072415  -6 1034  IU2VUZ DJ3HW -13 (x2)
073115 -14 1133  IU2VUZ PG5FRL JO22
074745  -9 2049  IU2VUZ DK8ZZ RR73
081700 -17 1842  IU2VUZ DD9MI -15
081930 -14 2428  IU2VUZ DK7ZT -13 (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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