SP8BDF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: KO10

Receiver-side FT8 activity involving SP8BDF, decoded by SO8OO in southeastern Poland. 115 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-09-19.

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 115 FT8 messages attributed to SP8BDF as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (85%), followed by 10 m (8%) and 20 m (4%). Most decodes (90%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (87%); the estimated median was +2 dB.

Overview

115
Messages attributed
6
UTC dates decoded
18
Active 15-min windows
+2 dB
Estimated median S/N

Bands

80m · 98 40m · 3 20m · 5 10m · 9
First attributed message: 2026-06-13
Last attributed message: 2026-09-19 18:31 UTC

Observed FT8 message patterns

Attributed sample
115 messages
Active dates
6 UTC dates
Estimated median S/N
+2 dB
Estimated 10th-90th percentile
-15 to +10 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 100.

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 SP8BDF 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 SP8BDF

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
KO10 · 91 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
106 km (approx.)
Last such locator decoded
2026-09-19 18:31 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 UTCBandSP8BDF S/NCounterpartCounterpart S/NMsgsCapture
09-19 18:18 80m 0 / - SN100PKP - / +4 22 Partial capture
09-19 18:17 80m 0 / - SO100PKP - / - 2 Partial capture
09-19 18:12 80m +6 / - SN100PKP - / - 7 Partial capture
09-19 15:28 40m -5 / - HF100PKP - / - 2 Partial capture
09-14 20:05 80m +4 / - II7IAME - / - 2 Partial capture
09-14 20:02 80m +4 / -2 IK2RZQ +7 / -1 4 Partial capture
09-14 19:58 80m +2 / - SQ100PKP - / - 2 Partial capture
09-14 19:56 80m +1 / - SO100PKP - / - 11 Partial capture
09-14 19:52 80m +6 / - RD9M/3 - / - 8 Partial capture
09-14 19:36 80m 0 / - RD9M/3 - / - 2 Partial capture
09-11 06:20 40m - / - IK2ZJR 0 / - 2 Partial capture
09-11 06:15 40m - / -5 DJ0MAB -6 / - 4 ✓ Closing fragment
09-11 06:14 40m - / -3 SP4MPH -2 / - 2 ✓ Closing fragment
09-09 20:36 80m -2 / -19 JH4ADV -9 / - 3 Partial capture
09-09 20:33 80m +5 / - JH2FXK - / -17 7 ✓ Closing fragment
09-09 20:28 80m +3 / - II0CDS - / - 7 Partial capture
09-09 20:26 80m +7 / -14 EA8UP -22 / -18 5 ✓ Full exchange observed
09-09 20:22 80m +8 / - 5Z4VJ - / - 3 Partial capture
09-09 20:21 80m +12 / - 4U1A -6 / +6 4 ✓ Full exchange observed
09-09 20:06 80m +9 / - SQ100PKP - / - 3 Partial capture
09-09 19:45 40m - / - R3LDK +4 / - 3 Partial capture
09-09 19:40 80m - / - UA4FKT +4 / - 3 Partial capture
09-09 19:37 80m +2 / - SQ100PKP - / -13 4 Partial capture
09-09 19:36 80m +1 / - LY90KRS - / - 2 Partial capture
09-09 19:19 80m +12 / - UA1CEI/3 - / - 2 Partial capture
08-26 17:08 20m -24 / - RI1FJL - / - 2 Partial capture
08-16 07:17 20m - / -1 UT7UJ +13 / - 3 ✓ Closing fragment
08-16 07:14 20m - / -17 PC2J -2 / - 4 ✓ Closing fragment
08-16 07:05 20m - / -4 RN6MA 0 / - 2 ✓ Closing fragment
08-16 06:43 20m - / -12 LZ2VQ -20 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
182515  +6 1292  SN100PKP SP8BDF KO10 (x11)
183030  -4 1508  SP8BDF II9IAGM -15
183045  +3 1292  SN100PKP SP8BDF R-05
183145  -3 1711  V51WH SP8BDF KO10
183230  -9 1291  SP8BDF RY3F -16
40m 
UTC    dB Audio  Message
201530 -18 2335  SP8BDF YO9HP -08
125530 -21 1682  M7MJW SP8BDF KO10
194500  +6  391  SP8BDF R3LDK KO64 (x3)
061400  +1  449  SP8BDF SP4MPH -03 (x2)
061500  -2 1889  SP8BDF DJ0MAB JN49 (x4)
062030  +1 2582  SP8BDF IK2ZJR JN45 (x2)
152845  -6 1740  HF100PKP SP8BDF KO10 (x2)
20m 
UTC    dB Audio  Message
070530  +1 1926  SP8BDF RN6MA RR73
070930 -14 1385  SP8BDF DL2JB JO31
071000  -6 2444  SP8BDF EB3JT JN01
071030 -13 1923  SP8BDF DL3LBK 73
071230 -11  945  SP8BDF EB3JT 73
071430  +1 2444  SP8BDF PC2J JO22 (x4)
071700 +11 2443  SP8BDF UT7UJ -01 (x3)
170845 -24 1931  RI1FJL SP8BDF KO10 (x2)
172945 -19 1013  <...> SP8BDF R-23

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.

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