DC1ULI — 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: JO31

Receiver-side FT8 activity involving DC1ULI, decoded by SO8OO in southeastern Poland. 91 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-08.

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 91 FT8 messages attributed to DC1ULI as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (73%), followed by 40 m (27%). Several six-hour UTC windows tied for the largest share (55%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (60%); the estimated median was -18 dB.

Overview

91
Messages attributed
11
UTC dates decoded
34
Active 15-min windows
-18 dB
Estimated median S/N

Bands

40m · 25 20m · 66
First attributed message: 2026-06-07
Last attributed message: 2026-09-08 20:52 UTC

Observed FT8 message patterns

Attributed sample
91 messages
Active dates
11 UTC dates
Estimated median S/N
-18 dB
Estimated 10th-90th percentile
-24 to -9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 55, moderate (-15 to -9 dB) 28, strong (≥ -8 dB) 8.

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 DC1ULI in decoded directed-looking exchanges:

Most frequent locator attributed to DC1ULI

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
JO31 · 64 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,054 km (approx.)
Last such locator decoded
2026-09-08 20:52 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 UTCBandDC1ULI S/NCounterpartCounterpart S/NMsgsCapture
09-08 20:51 40m -15 / - RU3DBT - / - 3 Partial capture
09-08 20:49 40m -16 / - SM3MLX - / - 3 Partial capture
09-08 20:48 40m -15 / -7 EG1SDC -14 / 0 3 ✓ Full exchange observed
09-08 20:46 40m -16 / - G6LTT - / - 3 Partial capture
09-08 20:44 40m -8 / - N1SK - / - 2 Partial capture
09-08 20:39 40m -14 / - HB9PDZ -10 / +4 6 ✓ Closing observed
09-08 20:37 40m -12 / - RA3GDV +1 / -3 6 ✓ Closing observed
09-08 19:39 40m - / -17 GM6ZC -14 / - 2 Partial capture
09-07 19:55 40m - / -1 SN40KZE +8 / - 3 Partial capture
09-07 19:52 40m - / +3 DL2DBI -9 / - 2 ✓ Closing fragment
08-20 13:40 20m - / -12 RA3LAL +6 / - 2 ✓ Closing fragment
08-11 18:10 20m - / -13 OZ7CL -17 / - 2 Partial capture
08-11 15:53 20m - / -11 IZ7KYS -22 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
204215 -13 1931  F4FTV DC1ULI JO31
204415  -9 1932  N1SK DC1ULI JO31 (x2)
204615 -18 1932  G6LTT DC1ULI JO31 (x3)
204830 -14 1126  DC1ULI EG1SDC -07
204845 -16 1932  EG1SDC DC1ULI R+00 (x2)
204945 -15 1932  SM3MLX DC1ULI JO31 (x3)
205115 -17 1932  RU3DBT DC1ULI JO31 (x3)
20m 
UTC    dB Audio  Message
154430 -23 1788  DC1ULI EG5MYC RR73
155345 -20 1343  DC1ULI IZ7KYS -11 (x2)
163600 -18 1256  DC1ULI EA5KBG RR73
181030 -17 1397  DC1ULI OZ7CL -13 (x2)
132730 -14 1606  ON4AOI DC1ULI JO31
133030 -15 1606  GW4RDW DC1ULI JO31
133400 -15 1606  F5RMK DC1ULI JO31
134015  +3 1384  DC1ULI RA3LAL -12 (x2)
134500 -10 1779  DC1ULI GW8PSJ -22

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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