IU4DKN — 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: JN54

Receiver-side FT8 activity involving IU4DKN, decoded by SO8OO in southeastern Poland. 33 FT8 messages attributed to this token as transmitter, on 60m, across 1 UTC dates in the available aggregate history. Last observed 2026-11-01.

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 33 FT8 messages attributed to IU4DKN as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (100%). In this small sample, the estimated median decoder S/N was -17 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-17 dB

Estimated median S/N

Bands

60m · 33

First attributed message: 2026-11-01
Last attributed message: 2026-11-01 18:38 UTC

Observed FT8 message patterns

Attributed sample: 33 messages
Active dates: 1 UTC dates
Estimated median S/N: -17 dB
Estimated 10th-90th percentile: -19 to -10 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 20, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 0.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with IU4DKN in decoded directed-looking exchanges:

ON7GB · Belgium ×2 DD6ZV · Fed. Rep. of Germany DK3JW · Fed. Rep. of Germany DK7UY · Fed. Rep. of Germany HA7TM · Hungary IZ3QAQ · Italy LA1HW · Norway OE5DML · Austria OZ5AGJ · Denmark SP1EG · Poland SP2EWQ · Poland SP9DWT · Poland

Most frequent locator attributed to IU4DKN

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: JN54 · 8 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,013 km (approx.)
Last such locator decoded: 2026-11-01 18:36 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	IU4DKN S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-04 08:58	10m	- / -16	RA9ACA	-15 / -	3	Partial capture
11-01 18:38	60m	-16 / -9	SP1EG	-20 / -11	4	✓ Full exchange observed
11-01 18:36	60m	-18 / +1	DK3JW	+4 / -6	5	✓ Full exchange observed
11-01 18:35	60m	-16 / +3	SP9DWT	-18 / 0	4	✓ Full exchange observed
11-01 18:32	60m	-18 / -	IZ3QAQ	- / -15	2	✓ Closing fragment
11-01 18:31	60m	-17 / -	EA3RO	- / -24	2	Partial capture
11-01 18:29	60m	-18 / -8	DK7UY	+14 / -	5	✓ Closing observed
11-01 18:29	60m	-19 / -7	SP2EWQ	-18 / -4	4	✓ Full exchange observed
11-01 18:27	60m	-18 / -	LA1HW	- / -16	2	✓ Closing fragment
11-01 18:25	60m	-13 / -7	DD6ZV	-15 / -5	6	✓ Full exchange observed
11-01 18:22	60m	-11 / -	F5HNQ	- / +5	3	Partial capture
11-01 18:21	60m	-14 / -11	HA7TM	-9 / -3	4	✓ Full exchange observed
11-01 18:20	60m	-19 / -5	OE5DML	+5 / -8	3	✓ Full exchange observed
11-01 18:18	60m	-18 / -	OZ5AGJ	- / -17	2	✓ Closing fragment
11-01 18:18	60m	- / -	HA7TM	-9 / -	3	Partial capture
11-01 18:18	60m	-12 / -4	ON7GB	+10 / 0	7	✓ Full exchange observed
10-14 11:53	40m	- / -	OE6PVG	-7 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
085845 -18 1406  IU4DKN RA9ACA -16 (x3)

60m

UTC    dB Audio  Message
183430 -23 1303  CQ IU4DKN JN54
183500 -14 1303  SP9DWT IU4DKN +00
183515 -19 1304  IU4DKN SP9DWT R+03
183530 -17 1303  SP9DWT IU4DKN RR73
183545 -16 1304  IU4DKN SP9DWT 73
183630 -17 1303  CQ IU4DKN JN54
183645  +4 1303  IU4DKN DK3JW JN67
183700 -19 1303  DK3JW IU4DKN -06
183715  +6 1303  IU4DKN DK3JW R+01
183730 -18 1303  DK3JW IU4DKN RR73
183745  +2 1303  IU4DKN DK3JW 73
183800 -18 1303  SP1EG IU4DKN -11
183815 -20 1303  IU4DKN SP1EG R-09
183830 -14 1303  SP1EG IU4DKN RR73
183845 -19 1303  IU4DKN SP1EG 73

40m

UTC    dB Audio  Message
115330  -7 1729  IU4DKN OE6PVG +12 (x2)

CW

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

Explore CW reception at SO8OO

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