UB1CEJ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO59

Receiver-side FT8 activity involving UB1CEJ, decoded by SO8OO in southeastern Poland. 31 FT8 messages attributed to this token as transmitter, on 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-08-01.

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 31 FT8 messages attributed to UB1CEJ as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Most decodes (77%) fell within the six-hour window 08:00-14:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (74%); the estimated median was -20 dB.

Overview

31
Messages attributed
4
UTC dates decoded
11
Active 15-min windows
-20 dB
Estimated median S/N

Bands

20m · 31
First attributed message: 2026-06-08
Last attributed message: 2026-08-01 21:06 UTC

Observed FT8 message patterns

Attributed sample
31 messages
Active dates
4 UTC dates
Estimated median S/N
-20 dB
Estimated 10th-90th percentile
-24 to -12 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 23, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 1.

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 UB1CEJ in decoded directed-looking exchanges:

Most frequent locator attributed to UB1CEJ

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
KO59 · 10 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,214 km (approx.)
Last such locator decoded
2026-08-01 21:05 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 UTCBandUB1CEJ S/NCounterpartCounterpart S/NMsgsCapture
08-06 17:08 40m - / -7 R6TY -5 / - 6 ✓ Closing fragment
08-06 16:54 20m - / - R9AL -7 / - 2 ✓ Closing fragment
08-02 19:07 20m - / - RY7G 0 / - 2 Partial capture
08-02 19:00 20m - / -13 R6DBT -11 / - 9 ✓ Closing fragment
08-02 18:34 20m - / -7 G3RPF -5 / - 3 ✓ Closing fragment
08-02 11:41 20m - / +5 R6OJ -12 / - 2 ✓ Closing fragment
08-02 10:17 20m - / +4 R4FFQ -16 / - 2 ✓ Closing fragment
08-01 21:22 20m - / -10 OO9A -7 / - 2 ✓ Closing fragment
08-01 21:05 20m -11 / -12 PD5MVH -9 / -14 7 ✓ Full exchange observed
08-01 21:05 20m - / -1 F4VVJ -8 / - 2 Partial capture
07-11 11:00 20m - / -6 GJ0KYZ -9 / - 2 Partial capture
07-11 10:57 20m - / -11 HA1BF -10 / - 2 ✓ Closing fragment
07-11 10:21 20m - / +1 IK4LZH +2 / - 3 ✓ Closing fragment
07-11 10:21 20m - / - RZ4FWA -16 / - 2 Partial capture
07-11 06:56 20m - / -13 EC3A -3 / - 4 Partial capture
07-11 06:53 20m - / -14 HB9EFK -6 / - 3 ✓ Closing fragment
07-11 06:42 20m - / - R3BV -18 / - 2 ✓ Closing fragment
07-04 12:04 20m - / -2 SV2HTW -7 / - 3 ✓ Closing fragment
07-04 12:02 20m - / -1 UA3ZQN -7 / - 7 Partial capture
07-04 11:43 20m - / -12 RU3QR -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
170830 -15 2182  UB1CEJ RV3YN KO73
170830  -6 2652  UB1CEJ R6TY -07 (x2)
171030 -23 1815  UB1CEJ R4PFY LO45
171030 -10  728  UB1CEJ 9A4ZM JN86
171100  +1 2927  UB1CEJ RW6ATD -16
171130  -6 2652  UB1CEJ R6TY -10
171200 -16 2181  UB1CEJ RV3YN KO73
171300  -6 2652  UB1CEJ R6TY -11 (x3)
20m 
UTC    dB Audio  Message
185300 -13 2415  UB1CEJ G7SQW JO02
190000 -14 1068  UB1CEJ R6DBT KN94 (x9)
190700  +3 1949  UB1CEJ RY7G LN14 (x2)
145845 -11 2322  UB1CEJ OZ9FF -13
165400  -8  554  UB1CEJ R9AL RR73 (x2)

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