UB2FDL — 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: Kaliningrad Most frequent locator attributed to this token: JO94

Receiver-side FT8 activity involving UB2FDL, decoded by SO8OO in southeastern Poland. 718 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 16 UTC dates in the available aggregate history. Observed between 2026-07-07 and 2026-10-24.

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 718 FT8 messages attributed to UB2FDL as the transmitting token by decoded message structure across 16 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (61%), followed by 40 m (29%) and 20 m (10%). Most decodes (98%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (73%); the estimated median was -3 dB.

Overview

718
Messages attributed
16
UTC dates decoded
63
Active 15-min windows
-3 dB
Estimated median S/N

Bands

80m · 441 40m · 207 20m · 70
First attributed message: 2026-07-07
Last attributed message: 2026-10-24 17:22 UTC

Observed FT8 message patterns

Attributed sample
718 messages
Active dates
16 UTC dates
Estimated median S/N
-3 dB
Estimated 10th-90th percentile
-14 to +4.1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 60, moderate (-15 to -9 dB) 131, strong (≥ -8 dB) 527.

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 UB2FDL in decoded directed-looking exchanges:

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 UB2FDL

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
JO94 · 326 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
542 km (approx.)
Last such locator decoded
2026-10-24 17:22 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 UTCBandUB2FDL S/NCounterpartCounterpart S/NMsgsCapture
10-29 18:48 40m - / - G4FHL -8 / - 2 Partial capture
10-29 18:44 40m - / - HB9ZHK -14 / - 2 Partial capture
10-29 18:38 40m - / - IU7IPX -14 / - 3 Partial capture
10-29 18:20 40m - / - ON1FB -2 / - 2 ✓ Closing fragment
10-29 18:17 40m - / - F4BQS -8 / - 2 Partial capture
10-29 18:13 40m - / -1 RC3D -8 / - 4 Partial capture
10-29 18:11 40m - / - F4BQS -9 / - 4 Partial capture
10-29 18:10 40m - / -20 R4FAH -9 / - 6 ✓ Closing fragment
10-29 18:06 40m - / - OE7FTI -8 / - 6 Partial capture
10-29 18:05 40m - / - RN6HK -9 / - 3 Partial capture
10-29 18:01 40m - / -10 UA4FKT +3 / - 3 ✓ Closing fragment
10-29 18:00 40m - / - IZ1HJU -16 / - 2 Partial capture
10-29 17:53 40m - / - F5HND -3 / - 2 Partial capture
10-29 17:49 40m - / -11 R6LNH -6 / - 4 ✓ Closing fragment
10-29 17:46 40m - / -8 EA3NE -10 / - 2 ✓ Closing fragment
10-29 17:42 40m - / -15 RU4SO 0 / - 2 Partial capture
10-29 17:40 40m - / -12 R4FES -15 / - 2 Partial capture
10-29 17:33 40m - / -11 RA3M -7 / - 3 ✓ Closing fragment
10-29 17:25 40m - / - DL7ROB -14 / - 2 Partial capture
10-29 17:23 40m - / - IU1PBA 0 / - 6 Partial capture
10-29 17:23 40m - / - UB3ZKO -12 / - 2 Partial capture
10-29 17:06 40m - / - RZ1AS -5 / - 3 Partial capture
10-29 17:03 40m - / 0 UA3YFL -7 / - 3 Partial capture
10-25 19:14 40m - / - F3CJ -14 / - 3 Partial capture
10-25 19:13 40m - / -13 RU6FK -16 / - 2 Partial capture
10-25 19:13 40m - / +2 IK5ZPU +6 / - 6 ✓ Closing fragment
10-25 19:10 40m - / - F3CJ -20 / - 2 Partial capture
10-25 19:05 40m - / +10 F5HOD -14 / - 5 ✓ Closing fragment
10-25 19:02 40m - / - F5HOD -15 / - 2 Partial capture
10-25 18:29 40m - / -7 G0HSP -6 / - 3 ✓ Closing fragment
10-25 18:28 40m - / -11 ON2PAT +10 / - 3 Partial capture
10-25 18:24 40m - / - F5HOD -17 / - 2 Partial capture
10-25 18:24 40m - / - IK0CHU -7 / - 4 ✓ Closing fragment
10-25 18:20 40m - / -6 R7CD 0 / - 2 ✓ Closing fragment
10-25 18:17 40m - / - IU8AYY -12 / - 2 Partial capture
10-25 18:15 40m - / - DK2WC/R -8 / - 2 Partial capture
10-25 18:15 40m - / - EA3FP -16 / - 5 Partial capture
10-25 18:15 40m - / - M0KEE -10 / - 2 Partial capture
10-25 18:07 40m - / - M0YTT -2 / - 5 Partial capture
10-25 18:06 40m - / - F3CJ -15 / - 2 Partial capture
10-25 18:01 40m - / - RD7O -3 / - 3 Partial capture
10-25 18:00 40m - / - R4FDK -19 / - 3 Partial capture
10-25 17:59 40m - / -16 DB1SN +6 / - 3 Partial capture
10-25 17:57 40m - / - F3CJ -15 / - 3 Partial capture
10-25 17:50 40m - / +3 DL5ASK +2 / - 3 ✓ Closing fragment
10-25 17:45 40m - / - IK2LHP -16 / - 2 Partial capture
10-25 17:41 40m - / -7 PA0RRS -1 / - 3 ✓ Closing fragment
10-25 17:39 40m - / +4 R6YG -5 / - 3 ✓ Closing fragment
10-25 17:37 40m - / -5 OE5PEN -20 / - 2 ✓ Closing fragment
10-24 18:59 40m - / - CT2HEX -8 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
183130 -16 1626  UB2FDL G0CMQ IO83
183330 -14 1476  UB2FDL R3DRC KO85
183630  -6  394  UB2FDL CU3AC HM68
183800 -10 1476  UB2FDL IU7IPX JN90
183830 -20 1682  UB2FDL OH6DHM KP12
183830 -16 1476  UB2FDL IU7IPX JN90 (x2)
184430 -15 2031  UB2FDL HB9ZHK JN47 (x2)
184730 -24 1674  UB2FDL RA3VLZ LO06
184830 -21 1477  UB2FDL IT9LPO -12
184830 -11 2640  UB2FDL G4FHL IO94
184830  -3  560  UB2FDL DK5SCM JO42
184900  -5 2641  UB2FDL G4FHL IO94
185400 -14 1671  UB2FDL RA3VLZ LO06
80m 
UTC    dB Audio  Message
185100  -4 1525  UB2FDL RX3DTN KO85
185115  -2 1451  RX3DTN UB2FDL -13
185130  -3 1348  UB2FDL HF9T R-11
185145  -7 1451  RX3DTN UB2FDL -13
185200  +0 1348  UB2FDL HF9T R-11 (x2)
185245  +0 1450  DG2EBG UB2FDL -18
185315  +0 1450  RX3DTN UB2FDL R-11
185415  -1 1451  DG2EBG UB2FDL -18
185545  +3 1450  CQ UB2FDL JO94                        a1 (x2)
185630  +3 2552  UB2FDL RC3D -13
185645  +3 1450  CQ UB2FDL JO94
185700  +3 2552  UB2FDL RC3D -13 (x2)

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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