BA8BLK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: China Most frequent locator attributed to this token: OM21

Receiver-side FT8 activity involving BA8BLK, decoded by SO8OO in southeastern Poland. 487 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 23 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-08-27.

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 487 FT8 messages attributed to BA8BLK as the transmitting token by decoded message structure across 23 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (99%), followed by 10 m (0%) and 40 m (0%). Most decodes (71%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

487
Messages attributed
23
UTC dates decoded
153
Active 15-min windows
-15 dB
Estimated median S/N

Bands

40m · 1 20m · 484 10m · 2
First attributed message: 2026-06-06
Last attributed message: 2026-08-27 16:05 UTC

Observed FT8 message patterns

Attributed sample
487 messages
Active dates
23 UTC dates
Estimated median S/N
-15 dB
Estimated 10th-90th percentile
-21 to -10 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 211, moderate (-15 to -9 dB) 243, strong (≥ -8 dB) 33.

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 BA8BLK 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 BA8BLK

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
OM21 · 16 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
6,928 km (approx.)
Last such locator decoded
2026-08-27 16:05 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 UTCBandBA8BLK S/NCounterpartCounterpart S/NMsgsCapture
09-08 15:17 40m - / -13 SP7VTQ +16 / - 3 ✓ Closing fragment
09-08 15:16 40m - / -19 UB8CPH -2 / - 2 ✓ Closing fragment
09-07 22:09 40m - / -24 MW0USK +7 / - 5 Partial capture
09-07 22:07 40m - / -16 IK2XDE +8 / - 2 ✓ Closing fragment
09-07 22:00 40m - / -24 UB6OCP -14 / - 2 Partial capture
09-07 21:08 40m - / -11 R4AFR -4 / - 2 ✓ Closing fragment
09-07 21:01 40m - / -20 R6HV -8 / - 4 ✓ Closing fragment
09-07 20:30 40m - / -14 OE3PBS +9 / - 2 ✓ Closing fragment
09-07 20:16 40m - / -14 HA9PP -8 / - 2 ✓ Closing fragment
09-07 19:00 40m - / -16 R6DFI -6 / - 5 Partial capture
09-07 18:55 40m - / -23 SP6JIU +24 / - 3 Partial capture
09-07 18:52 40m - / -19 R6TA +3 / - 2 ✓ Closing fragment
09-07 18:37 40m - / -20 RM9WU -6 / - 2 Partial capture
09-07 17:17 40m - / -25 R9DT -2 / - 2 ✓ Closing fragment
09-07 16:57 40m - / -25 RK2Z +3 / - 2 Partial capture
09-07 16:53 40m - / -19 R1QBQ -2 / - 2 Partial capture
09-07 14:57 40m - / -14 RY3D +5 / - 3 ✓ Closing fragment
09-06 22:52 40m - / -13 LZ5UY -1 / - 4 ✓ Closing fragment
09-05 23:09 40m - / -18 4O7CC -11 / - 2 ✓ Closing fragment
09-05 23:02 40m - / -23 R1943OD 0 / - 3 Partial capture
09-05 22:48 40m - / -16 RX6AOB -2 / - 2 ✓ Closing fragment
09-04 23:11 40m - / -17 LZ2VQ -20 / - 2 ✓ Closing fragment
09-04 23:10 40m - / -23 RJ6ON 0 / - 2 ✓ Closing fragment
09-04 22:43 40m - / - SV1MOZ -9 / - 4 Partial capture
09-04 22:42 40m - / -4 BA7NQ -14 / - 2 ✓ Closing fragment
09-04 22:40 40m - / -6 LZ123RF -8 / - 4 Partial capture
09-04 22:37 40m - / - DL9PN 0 / - 3 Partial capture
09-04 22:31 40m - / -7 DK7ZT -3 / - 3 ✓ Closing fragment
09-04 22:31 40m - / -7 RA4PIS -14 / - 2 ✓ Closing fragment
09-04 15:21 40m - / -17 UN7ID -10 / - 6 Partial capture
08-29 21:11 40m - / -12 JA5FDJ -14 / - 2 ✓ Closing fragment
08-28 22:59 40m - / -18 YO4KMU -4 / - 2 ✓ Closing fragment
08-28 19:29 20m - / -18 IW1DQS +5 / - 2 Partial capture
08-28 18:43 20m - / -22 F4HEN +8 / - 2 Partial capture
08-28 17:43 20m - / - GM0SDV +6 / - 2 Partial capture
08-28 09:26 10m - / -12 SV7BAY -15 / - 2 ✓ Closing fragment
08-27 16:14 40m - / -20 RD9T -11 / - 2 ✓ Closing fragment
08-27 16:02 20m - / -19 MM3RCR -4 / - 3 ✓ Closing fragment
08-27 15:52 20m -11 / - RI1FJL - / - 3 Partial capture
08-26 16:19 20m -24 / - YO5ODC - / -12 2 Partial capture
08-26 16:13 20m - / -9 RZ6AKF +4 / - 4 ✓ Closing fragment
08-26 15:24 20m -13 / - SP9MRR - / - 3 ✓ Closing fragment
08-26 15:18 20m -12 / - RV3X - / -10 3 ✓ Closing fragment
08-26 14:55 20m - / -16 SP3SLA -10 / - 2 ✓ Closing fragment
08-25 22:51 40m - / -19 4X1UF -3 / - 19 Partial capture
08-25 22:44 40m - / -12 LZ2II +2 / - 2 ✓ Closing fragment
08-25 22:03 20m -8 / - UT7UJ - / -14 3 Partial capture
08-25 22:00 20m -19 / - RA4CEH - / -14 3 Partial capture
08-25 21:46 20m -12 / - UT7UJ - / -14 3 Partial capture
08-25 21:44 20m -7 / - RN3AOE - / -12 4 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
220000 -14 1976  BA8BLK UB6OCP R-24 (x2)
220730 +10 1733  BA8BLK IK2XDE R-16 (x2)
220930  +6 2441  BA8BLK MW0USK R-24 (x5)
221200 -11  346  BA8BLK 9A60CBM R-17
151630  -1 3022  BA8BLK UB8CPH R-19 (x2)
151730 +15 2953  BA8BLK SP7VTQ R-13 (x3)
20m 
UTC    dB Audio  Message
155445 -11  747  RI1FJL BA8BLK OM21 (x2)
160215  -7 2603  BA8BLK MM3RCR -19 (x3)
160500 -23 1758  IW4ECF BA8BLK OM21
174300  +7 1000  BA8BLK GM0SDV IO75 (x2)
184315  +8 1897  BA8BLK F4HEN R-22 (x2)
192915 -16 1153  <BA8BLK> II7MGBA RR73
192915  +3 1868  BA8BLK IW1DQS R-18 (x2)
225300  +7 1969  BA8BLK IK4HLQ 73
173400 -14  903  BA8BLK DB1SN -18
10m 
UTC    dB Audio  Message
113045 -19 1841  BA8BLK A61FJ R+05
113615 -14 1606  BA8BLK RW6HP LN14 (x4)
114230 -13  684  CQ POTA BA8BLK OM21
114545 -19 1551  BA8BLK UX3HX KN79
115215 -21 1267  EA1EV BA8BLK -12
115845  -5  701  BA8BLK A71AT R+23 (x2)
085730  -1  572  BA8BLK 8A1WWA R-18
081130  -5 2289  BA8BLK R50RKZ R-14 (x2)
092600 -11  993  BA8BLK SV7BAY R-12 (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.

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