DD8IU — 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: Fed. Rep. of Germany Most frequent locator attributed to this token: JN49

Receiver-side FT8 activity involving DD8IU, decoded by SO8OO in southeastern Poland. 8 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-10-09.

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 8 FT8 messages attributed to DD8IU as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -19 dB; no usual signal pattern is inferred.

Overview

8
Messages attributed
1
UTC dates decoded
1
Active 15-min windows
-19 dB
Estimated median S/N

Bands

40m · 8
First attributed message: 2026-10-09
Last attributed message: 2026-10-09 05:19 UTC

Observed FT8 message patterns

Attributed sample
8 messages
Active dates
1 UTC dates
Estimated median S/N
-19 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 1, 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 DD8IU in decoded directed-looking exchanges:

Most frequent locator attributed to DD8IU

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
JN49 · 5 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
920 km (approx.)
Last such locator decoded
2026-10-09 05:19 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 UTCBandDD8IU S/NCounterpartCounterpart S/NMsgsCapture
10-09 05:18 40m -21 / -8 YL2KF +4 / +7 4 ✓ Full exchange observed
10-09 05:17 40m - / - LZ2VQ -12 / - 3 Partial capture
10-09 05:16 40m -18 / -8 IZ8GUU -13 / +4 6 ✓ Full exchange observed
09-12 11:40 40m - / -13 DF0WH -21 / - 2 Partial capture
09-12 11:37 40m - / -16 OE6HLF -5 / - 2 ✓ Closing fragment
09-12 11:25 40m - / -8 HB9DGZ -11 / - 2 ✓ Closing fragment
09-06 12:37 40m - / - DL7UKM -2 / - 3 Partial capture
09-06 12:36 40m - / - IU1DXU -14 / - 2 Partial capture
09-06 12:25 40m - / - DL7UKM -4 / - 3 Partial capture
09-06 12:13 40m - / - OE2VDL -20 / - 4 ✓ Closing fragment
09-06 12:11 40m - / -14 OU7K/P -20 / - 2 ✓ Closing fragment
09-06 12:10 40m - / +10 F5BQU -18 / - 2 ✓ Closing fragment
09-06 12:09 40m - / - OE2VDL -16 / - 3 Partial capture
09-06 11:59 40m - / -20 OU7K/P -15 / - 3 Partial capture
09-06 11:29 40m - / - OE2VDL -18 / - 4 Partial capture
09-06 11:14 40m - / -23 SP5AA +6 / - 2 ✓ Closing fragment
09-06 11:00 40m - / -12 DL0HAM +4 / - 2 ✓ Closing fragment
09-06 10:58 40m - / -18 SP5AA +4 / - 2 Partial capture
09-06 10:49 40m - / -16 DM5ME -16 / - 2 ✓ Closing fragment
09-06 10:35 40m - / -12 SP5AA 0 / - 2 ✓ Closing fragment
09-06 10:25 40m - / -9 OU7K/P -10 / - 3 Partial capture
09-06 10:09 40m - / -22 SP6EFY -2 / - 3 ✓ Closing fragment
09-06 10:01 40m - / -17 PD0IFI -5 / - 7 ✓ Closing fragment
09-06 09:51 40m - / -9 DK6WH -12 / - 2 ✓ Closing fragment
09-04 13:28 40m - / -7 DD7EE -14 / - 4 ✓ Closing fragment
09-04 13:23 40m - / -6 DL4SE -14 / - 2 ✓ Closing fragment
09-03 18:49 40m - / -15 EI8GS -1 / - 2 ✓ Closing fragment
08-28 09:48 40m - / - DK3HV -21 / - 5 Partial capture
08-28 09:46 40m - / - HB9CYV -9 / - 2 Partial capture
08-28 09:29 10m - / -11 IW3IBN +2 / - 2 ✓ Closing fragment
08-28 08:40 10m - / +10 IU4PPL -19 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
051530 -15 1843  HG0NPJ DD8IU JN49
051600 -17 1843  IZ8GUU DD8IU JN49 (x2)
051645 -14 1426  DD8IU IZ8GUU -08
051700 -19 1843  IZ8GUU DD8IU R+04
051715 -12 1426  DD8IU IZ8GUU RR73
051730 -21 1843  IZ8GUU DD8IU 73
051745 -11 1844  DD8IU LZ2VQ KN23
051800 -18 1843  YL2KF DD8IU JN49
051815  +4  689  DD8IU YL2KF -08
051815 -12 1844  DD8IU LZ2VQ KN23
051830 -24 1843  YL2KF DD8IU R+07
051845  +4  689  DD8IU YL2KF RR73
051845 -13 1844  DD8IU LZ2VQ KN23
051930 -20 1843  SQ9SET DD8IU JN49
10m 
UTC    dB Audio  Message
082730  -8 1180  DD8IU IZ3NVR -07
084030 -19 1420  DD8IU IU4PPL JN54 (x3)
092930  +2 1191  DD8IU IW3IBN -11 (x2)
093400 -22 2100  DD8IU IU3UQW -10

CW

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

Explore CW reception at SO8OO

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