IU1DXU — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN35

Receiver-side FT8 activity involving IU1DXU, decoded by SO8OO in southeastern Poland. 6,654 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 60 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-06.

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 6,654 FT8 messages attributed to IU1DXU as the transmitting token by decoded message structure across 60 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (44%), followed by 80 m (27%) and 40 m (25%). Most decodes (57%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

6,654

Messages attributed

UTC dates decoded

659

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 1,797 40m · 1,643 20m · 2,946 10m · 268

First attributed message: 2026-06-06
Last attributed message: 2026-11-06 11:32 UTC

Observed FT8 message patterns

Attributed sample: 6,654 messages
Active dates: 60 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -20 to -2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,699, moderate (-15 to -9 dB) 2,329, strong (≥ -8 dB) 2,626.

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 IU1DXU in decoded directed-looking exchanges:

M8FQT · England ×7 DL7UKM · Fed. Rep. of Germany ×3 IZ1OLC · Italy ×2 DF8MH · Fed. Rep. of Germany ×2 DG5PW · Fed. Rep. of Germany ×2 EA5JLB · Spain ×2 G0OFD · England ×2 LA3DRA · Norway ×2 LB5CK · Norway ×2 PA4AM · Netherlands ×2 PD5GO · Netherlands ×2 RD3FY · European Russia ×2

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 IU1DXU

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: JN35 · 4,962 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,209 km (approx.)
Last such locator decoded: 2026-11-06 11:32 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	IU1DXU S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-06 10:37	40m	-21 / -	MI0CBH	- / -	2	Partial capture
11-06 10:35	40m	-15 / -	PD1RGW	- / -	3	Partial capture
11-06 10:30	40m	- / +9	LX9RL	-18 / -	2	✓ Closing fragment
11-06 10:28	40m	-6 / -	DK1XAM	- / -1	3	✓ Closing fragment
11-05 22:09	40m	-13 / -	TC8ATA	- / -9	2	Partial capture
11-05 22:06	40m	-4 / -	EA1KCU	- / -8	4	✓ Closing fragment
11-05 21:59	40m	-14 / -	K1DG	- / -	10	Partial capture
11-05 21:54	40m	-12 / -	VK6TDF/P	- / -	10	Partial capture
11-05 21:47	40m	+4 / -	8Z1IT	- / -	2	Partial capture
11-05 21:42	40m	-6 / -	K1DG	- / -	4	Partial capture
11-05 21:40	40m	-7 / -	PF40EUDXF	- / -	2	Partial capture
11-05 21:30	40m	-16 / -	TC2TR	-18 / -9	2	✓ Closing observed
11-05 21:24	40m	-18 / -	K1DG	- / -	3	Partial capture
11-05 21:14	80m	-10 / -	OZ1JVX	- / -	5	Partial capture
11-05 21:11	80m	-14 / -	G4FHL	- / -	3	Partial capture
11-05 21:08	80m	-9 / -	OZ1JVX	- / -	5	Partial capture
11-05 21:03	80m	-15 / -	GU4WRP	- / -6	2	✓ Closing fragment
11-05 20:58	80m	-15 / -3	ON6LEO	-1 / -	4	✓ Closing observed
11-05 20:52	80m	-10 / -	PC9K	- / -	4	Partial capture
11-05 19:14	40m	-14 / -	PI40EUDXF	- / -	18	Partial capture
11-05 18:47	40m	-16 / -	EU6UE	- / -	11	Partial capture
11-05 18:35	40m	-10 / -	EU6UE	- / -	13	Partial capture
11-05 18:32	40m	-12 / -	G0XLX	- / -13	4	✓ Closing fragment
11-05 18:23	40m	-10 / -	SP7SZJ	- / -1	2	Partial capture
11-05 10:32	40m	-21 / -	F5TGY	- / -	7	Partial capture
11-05 09:34	40m	-17 / -	HB9RTW	- / -15	4	Partial capture
11-05 09:30	40m	-5 / -	EA5KEP	- / -14	5	✓ Closing fragment
11-05 09:28	40m	-8 / -	PD1TWO	- / -	5	Partial capture
11-04 22:58	40m	-8 / -	EK/RX3DPK	- / -	10	Partial capture
11-04 22:52	40m	-10 / -	TA2PYZ	- / -16	6	✓ Closing fragment
11-04 22:44	40m	-14 / -	EA1FE	- / -	11	Partial capture
11-04 22:36	40m	-6 / -	EK/RX3DPK	- / -	4	Partial capture
11-04 22:26	40m	-13 / -	UN0GY	- / -18	4	✓ Closing fragment
11-04 22:24	40m	-20 / -6	CT7BRV	-16 / -1	5	✓ Full exchange observed
11-04 22:20	40m	-8 / -	KE4EB	- / -	2	Partial capture
11-04 22:18	40m	-13 / -	TC0TR	- / -	2	Partial capture
11-04 22:15	40m	-22 / -15	IU5AWQ	-9 / -11	6	✓ Full exchange observed
11-04 22:06	40m	+3 / -	RD3FY	- / -9	3	✓ Closing fragment
11-04 20:53	80m	+5 / -	G0CUZ	- / -	7	Partial capture
11-04 19:05	40m	-15 / +3	G7RAU	-4 / -	3	✓ Closing observed
11-04 18:50	80m	-12 / -	4Z5AV	- / -	2	Partial capture
11-04 18:43	80m	-14 / -3	DO1WOA	-11 / -5	6	✓ Full exchange observed
11-04 18:40	80m	-16 / -15	R9GM	0 / -5	14	✓ Full exchange observed
11-04 18:23	80m	-13 / -	RD7X	- / -	16	Partial capture
11-04 18:20	80m	-9 / -15	R2GCV	-4 / -	7	✓ Closing observed
11-04 18:18	80m	-5 / -	F4GCB/P	- / -	2	Partial capture
11-04 18:12	80m	-14 / -	F4GCB/P	- / -	5	Partial capture
11-04 18:06	80m	-11 / -	F4GCB/P	- / -	3	Partial capture
11-04 18:03	80m	-10 / -	F4GCB/P	- / -	2	Partial capture
11-04 18:00	80m	-9 / -11	IU3WNP	-16 / -4	3	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
220745  -3 2650  EA1KCU IU1DXU 73
220945 -12 1741  TC8ATA IU1DXU R-09 (x2)
102830  -6 2690  DK1XAM IU1DXU JN35 (x3)
103045 -16 1803  IU1DXU LX9RL +09 (x2)
103300 -23 1544  IU1HGN IU1DXU 73
103500 -14 1818  PD1RGW IU1DXU JN35 (x3)
103730 -20 1517  MI0CBH IU1DXU JN35 (x2)
113230  -5 2363  ON2LVC/P IU1DXU JN35

80m

UTC    dB Audio  Message
210345 -15 1935  GU4WRP IU1DXU R-06 (x2)
210815 -11 2787  OZ1JVX IU1DXU JN35 (x5)
211145 -13 2343  G4FHL IU1DXU JN35 (x3)
211415 -10 2788  OZ1JVX IU1DXU JN35 (x5)

60m

UTC    dB Audio  Message
185600  -5 1774  IU1DXU 9A4ZM JN86 (x2)

20m

UTC    dB Audio  Message
124345  -1 1769  CQ IU1DXU JN35 (x15)

10m

UTC    dB Audio  Message
102115 -15 1481  CQ IU1DXU JN35 (x13)
133830 -16 1475  IU1DXU LZ2HY KN12
134445 -20 1481  OK3WOD IU1DXU +14

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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