RA3LBK — 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: European Russia Most frequent locator attributed to this token: KO64

Receiver-side FT8 activity involving RA3LBK, decoded by SO8OO in southeastern Poland. 393 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 31 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-11-05.

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 393 FT8 messages attributed to RA3LBK as the transmitting token by decoded message structure across 31 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (42%), followed by 80 m (31%) and 20 m (13%). Most decodes (64%) fell within the six-hour window 00:00-06:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (63%); the estimated median was -5.4 dB.

Overview

393
Messages attributed
31
UTC dates decoded
67
Active 15-min windows
-5.4 dB
Estimated median S/N

Bands

First attributed message: 2026-06-08
Last attributed message: 2026-11-05 06:55 UTC

Observed FT8 message patterns

Attributed sample
393 messages
Active dates
31 UTC dates
Estimated median S/N
-5.4 dB
Estimated 10th-90th percentile
-14 to +6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 33, moderate (-15 to -9 dB) 111, strong (≥ -8 dB) 249.

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.

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 RA3LBK

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
KO64 · 178 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
915 km (approx.)
Last such locator decoded
2026-11-05 06:54 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 UTCBandRA3LBK S/NCounterpartCounterpart S/NMsgsCapture
11-05 06:55 40m -20 / - RA6FTH - / -13 2 ✓ Closing fragment
11-05 06:52 40m - / +2 EW4DX +10 / - 3 ✓ Closing fragment
11-05 06:50 40m - / +2 YL3ATJ -16 / - 3 ✓ Closing fragment
11-05 06:46 40m - / -10 DL6UM -3 / - 6 ✓ Closing fragment
11-05 06:45 40m - / -18 PD1DBL -17 / - 4 Partial capture
11-03 15:26 80m -6 / - OR40EUDXF - / -14 2 Partial capture
11-03 15:05 80m -10 / +1 RA5AK -16 / +7 5 ✓ Full exchange observed
11-03 15:04 80m -5 / - RO5A -11 / - 4 ✓ Full exchange observed
11-03 15:02 80m -18 / - RD9T -24 / -11 3 ✓ Closing observed
11-03 14:36 80m -11 / - OZ2JFS/P - / - 6 Partial capture
11-02 01:24 80m +4 / -6 R7KJM -4 / -6 5 ✓ Full exchange observed
11-02 01:21 80m -4 / -10 RV6F -19 / - 5 ✓ Closing observed
11-02 01:19 80m +2 / - RA4CNX - / -11 2 ✓ Closing fragment
11-02 01:19 80m +2 / -4 RL3QGD -6 / -19 5 ✓ Full exchange observed
11-02 01:14 80m +4 / - R8PG - / - 2 Partial capture
11-02 01:10 80m +4 / - RU4CK/P - / -12 3 ✓ Closing fragment
11-01 17:07 80m -2 / - SP5DFK/QRP - / +7 2 Partial capture
11-01 16:35 80m -4 / - RA6FCU/P - / - 3 Partial capture
11-01 02:16 40m - / - RD3FY -9 / - 2 Partial capture
10-28 18:03 80m +2 / - R6OQ - / 0 3 ✓ Closing fragment
10-27 00:40 80m - / -14 ON1JP -14 / - 3 Partial capture
10-27 00:40 80m - / - F4FPR -18 / - 5 Partial capture
10-27 00:38 80m 0 / +10 UA3RBM -6 / - 3 ✓ Closing observed
10-27 00:37 80m +5 / -14 DO1OAS -6 / -15 9 ✓ Full exchange observed
10-27 00:34 80m +14 / - HK3ZM - / - 2 Partial capture
10-23 16:50 80m -2 / -2 EU2ABM +13 / - 5 ✓ Full exchange observed
10-23 16:48 80m +4 / - UA6MO -17 / -13 3 ✓ Closing observed
10-23 16:47 80m +4 / +1 RA3LCX +7 / - 5 ✓ Full exchange observed
10-23 16:45 80m +2 / 0 RA6BL -2 / +3 4 ✓ Full exchange observed
10-23 16:45 80m - / - EU2ABM +14 / - 2 Partial capture
10-23 16:44 80m +1 / -9 UB6OAJ -6 / -8 5 ✓ Full exchange observed
10-23 16:42 80m 0 / +1 RA1QCX -10 / -9 4 ✓ Full exchange observed
10-23 16:42 80m 0 / - RA4NCC -8 / -7 5 ✓ Closing observed
10-23 16:38 80m +2 / -9 RA4CFX 0 / +5 5 ✓ Full exchange observed
10-23 16:37 160m - / - RA3SI -23 / - 3 Partial capture
10-23 03:36 160m - / -17 RA5AD -2 / - 2 ✓ Closing fragment
10-23 03:19 160m -4 / -4 RY3K +9 / - 4 ✓ Closing observed
10-23 02:44 80m +4 / -10 UA9FMT -4 / -12 4 ✓ Full exchange observed
10-23 02:43 80m - / - SV1ENG -7 / - 2 Partial capture
10-23 02:33 160m -20 / -5 R5AV -5 / +4 3 ✓ Full exchange observed
10-23 02:33 160m -23 / -15 RJ3DC -6 / -3 4 ✓ Full exchange observed
10-23 02:31 160m - / -12 RW9WJ -14 / - 2 ✓ Closing fragment
10-22 03:40 160m - / -2 OH5KNL +12 / - 2 ✓ Closing fragment
10-22 03:38 160m - / -19 RA3ZGT -7 / - 2 ✓ Closing fragment
10-22 03:30 160m -10 / -11 LZ1ST -5 / -9 5 ✓ Full exchange observed
10-22 03:24 160m -14 / - RA6ANN - / -22 4 Partial capture
10-22 03:18 160m -12 / -6 RM5F +1 / -9 5 ✓ Full exchange observed
10-22 03:16 160m -14 / 0 RA3QTT +6 / +4 6 ✓ Full exchange observed
10-20 14:11 40m -4 / - RD0L - / - 4 Partial capture
10-20 14:08 40m +3 / - RA0SCZ -16 / +6 3 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
064630  +1  755  RA3LBK DL6UM JO60 (x5)
065030 -17 1972  RA3LBK YL3ATJ KO27 (x3)
065200 +10 1044  RA3LBK EW4DX KO23 (x3)
065415 -20 1972  CQ RA3LBK KO64 (x2)
065515 -18 1972  RA6FTH RA3LBK -13 (x2)
80m
UTC    dB Audio  Message
150245 -24 2306  RA3LBK RD9T RR73
150300 -12 1647  RD9T RA3LBK 73
150445 -16 1057  RA3LBK RO5A +12
150500  -6 1648  RO5A RA3LBK R+11
150515  -6 1058  RA3LBK RO5A RR73
150530  -4 1648  RO5A RA3LBK 73
150545 -20  947  RA3LBK RA5AK KO85
150600 -13 1648  RA5AK RA3LBK +07
150615 -18  946  RA3LBK RA5AK R+01
150630  -7 1647  RA5AK RA3LBK RR73
150645  -9  947  RA3LBK RA5AK 73
150645 -14 1100  RA3LBK R1CL KO59
152645 -11 2542  OR40EUDXF RA3LBK KO64 (x2)
152800 -13 1543  RA3LBK R6H/UN7IO R-02
160m
UTC    dB Audio  Message
023415  -6 1452  RA3LBK RJ3DC 73
023430 -20 1512  R5AV RA3LBK R+04
023445  +3 1513  RA3LBK R5AV RR73
023600 -17 1512  CQ RA3LBK KO64
031930  +0 2418  RY3K RA3LBK KO64
031945  +9 2418  RA3LBK RY3K -04 (x2)
032030  -8 2418  RY3K RA3LBK 73
033645  -3  898  RA3LBK RA5AD -17 (x2)
034400 -14 1951  CQ RA3LBK KO64 (x2)
163700 -24 1771  RA3LBK RA3SI LO04 (x3)
20m
UTC    dB Audio  Message
035015 -10 2435  RA3LBK 7Z1XX LL07 (x3)

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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee