IU3QNU — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN55

Receiver-side FT8 activity involving IU3QNU, decoded by SO8OO in southeastern Poland. 63 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-22 and 2026-08-10.

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 63 FT8 messages attributed to IU3QNU as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (87%), followed by 40 m (13%). Most decodes (100%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

40m · 8 20m · 55

First attributed message: 2026-06-22
Last attributed message: 2026-08-10 21:06 UTC

Observed FT8 message patterns

Attributed sample: 63 messages
Active dates: 6 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -18 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 22, strong (≥ -8 dB) 29.

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 IU3QNU in decoded directed-looking exchanges:

4X1UF · Israel A61CK · United Arab Emirates JE2ERR · Japan PD1GOL · Netherlands SP1EG · Poland IU4PPL · Italy

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 IU3QNU

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: JN55 · 51 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 945 km (approx.)
Last such locator decoded: 2026-08-10 21:06 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	IU3QNU S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-10 21:05	20m	-8 / -	Z62NS	- / -	2	Partial capture
08-10 17:55	20m	-13 / -	JE1BMJ	- / -	4	Partial capture
08-10 17:41	20m	-16 / -	9J2FI	- / -	7	Partial capture
08-10 17:01	20m	-13 / -	PD1GOL	- / -17	3	✓ Closing fragment
07-26 21:57	20m	-10 / -	EX8ABR	- / -	8	Partial capture
07-21 22:10	20m	- / -17	4X1UF	-11 / -	5	✓ Closing fragment
07-17 21:58	20m	-12 / -	KF0YOB	- / -	12	Partial capture
07-16 22:22	20m	- / -16	KC1WAI	-19 / -	3	Partial capture
07-13 22:01	40m	-5 / -	IS0BOZ	- / -	3	Partial capture
06-22 21:17	20m	-4 / -	SP1EG	- / -4	2	✓ Closing fragment
06-22 21:10	20m	-5 / -18	A61CK	-10 / -11	10	✓ Full exchange observed
06-22 21:05	20m	+2 / -	JE2ERR	- / -13	3	✓ Closing fragment
06-22 20:59	40m	-20 / -	TA7MMI	- / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
170200 -15 1560  PD1GOL IU3QNU R-17 (x2)
174100 -12 1560  9J2FI IU3QNU JN55 (x7)
175500 -11 1560  JE1BMJ IU3QNU JN55 (x4)
210530  -7 1563  Z62NS IU3QNU JN55 (x2)

40m

UTC    dB Audio  Message
205930 -20 2027  TA7MMI IU3QNU JN55 (x4)
210230 -20 2027  IU4PPL IU3QNU RR73
220100  -3  633  IS0BOZ IU3QNU JN55 (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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