SP1BSJ — 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: Poland Most frequent locator attributed to this token: JO73

Receiver-side FT8 activity involving SP1BSJ, decoded by SO8OO in southeastern Poland. 539 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, across 43 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-11-07.

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 539 FT8 messages attributed to SP1BSJ as the transmitting token by decoded message structure across 43 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (54%), followed by 60 m (18%) and 40 m (16%). Most decodes (77%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (84%); the estimated median was +3 dB.

Overview

539
Messages attributed
43
UTC dates decoded
91
Active 15-min windows
+3 dB
Estimated median S/N

Bands

First attributed message: 2026-06-12
Last attributed message: 2026-11-07 01:58 UTC

Observed FT8 message patterns

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

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 73, strong (≥ -8 dB) 455.

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 SP1BSJ

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
JO73 · 290 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
613 km (approx.)
Last such locator decoded
2026-11-07 01:58 UTC

Other locator fields attributed to this token: JO83 (5).

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 UTCBandSP1BSJ S/NCounterpartCounterpart S/NMsgsCapture
11-07 01:57 160m - / -16 EC1AIJ -22 / - 2 Partial capture
11-07 01:57 160m - / - SP5EXA +9 / - 6 Partial capture
11-07 01:54 60m - / - F5RRS 0 / - 4 Partial capture
11-07 01:51 60m -14 / -6 PC2J +1 / -9 5 ✓ Full exchange observed
11-07 01:50 80m +9 / -8 DK8HC/P +1 / -1 4 ✓ Full exchange observed
11-07 01:48 80m +10 / 0 DG5PW -3 / -1 5 ✓ Full exchange observed
11-07 01:48 80m - / -3 GM6URC -6 / - 8 Partial capture
11-07 01:48 80m - / - ON4MAP -13 / - 6 Partial capture
11-07 01:47 80m - / - DL1BBO +5 / - 3 Partial capture
11-07 01:46 80m +14 / - DA6PM - / -14 2 ✓ Closing fragment
11-07 01:46 80m - / +1 F1PBZ +10 / - 8 Partial capture
11-07 01:45 80m - / - RX3ASQ +4 / - 4 Partial capture
11-07 01:44 160m - / - DF4WQ -7 / - 6 Partial capture
11-07 01:44 160m - / - UA4FET -18 / - 2 Partial capture
11-07 01:43 160m 0 / +1 HA7TM +20 / - 5 ✓ Full exchange observed
11-07 01:40 80m +10 / - S55P - / - 4 Partial capture
11-06 23:55 80m +12 / -3 DK7UY +5 / +3 5 ✓ Full exchange observed
11-06 23:55 80m - / - DL1BBO +6 / - 2 Partial capture
11-06 23:54 80m - / - DO5HB -7 / - 5 Partial capture
11-06 23:53 80m +14 / - DH5IS -8 / -2 3 ✓ Closing observed
11-06 23:52 80m +10 / -13 A41CK -9 / -11 3 ✓ Full exchange observed
11-06 23:51 80m +3 / - EI4JFB - / -5 2 ✓ Closing fragment
11-06 23:48 80m - / -5 F1PBZ +2 / - 5 Partial capture
11-06 23:48 80m 0 / +7 F5MXH -6 / -5 5 ✓ Full exchange observed
11-06 21:55 60m - / +7 ON1JP -18 / - 3 Partial capture
11-06 21:45 160m +11 / -7 RX3DTN -4 / -16 5 ✓ Full exchange observed
11-06 21:43 80m +2 / 0 4O7CC -1 / - 4 ✓ Closing observed
11-03 19:37 60m +2 / -5 DL1IP -3 / -7 4 ✓ Full exchange observed
11-03 19:36 60m +2 / - DF4SI - / -13 2 ✓ Closing fragment
11-03 19:35 60m +3 / - GB1RBL - / -12 2 ✓ Closing fragment
11-03 19:35 60m - / - DK3JW -6 / - 5 Partial capture
10-30 19:48 160m +7 / -1 LY2EW -12 / -7 4 ✓ Full exchange observed
10-30 19:47 160m +4 / 0 DA1ST -15 / -13 4 ✓ Full exchange observed
10-30 19:46 160m - / - HF5A 0 / - 9 Partial capture
10-30 19:45 160m +1 / +10 PI4DX +4 / +1 5 ✓ Full exchange observed
10-30 19:44 160m +3 / -8 SP6TK -5 / - 9 Partial capture
10-30 19:39 60m +8 / -11 DK7UY +6 / -14 5 ✓ Full exchange observed
10-30 19:38 60m - / - IK4CBO -4 / - 4 Partial capture
10-28 18:13 80m - / - DO2HG -2 / - 3 Partial capture
10-27 18:35 80m - / - DO1ID -7 / - 2 Partial capture
10-27 18:34 80m - / -16 RU3GF -5 / - 2 Partial capture
10-27 18:31 80m +10 / +1 SQ8V -11 / -11 7 ✓ Full exchange observed
10-26 19:54 80m +13 / -4 CT7AIU -15 / -3 5 Partial capture
10-26 18:29 60m -6 / - EA5TT - / -13 2 ✓ Closing fragment
10-26 18:25 160m 0 / -7 IK3/UY7LA -15 / -14 2 Partial capture
10-26 18:21 160m -4 / -6 UT7NY -5 / -12 8 ✓ Full exchange observed
10-26 18:21 160m +1 / - DB1RZ - / -11 2 ✓ Closing fragment
10-26 18:21 160m - / - SP3CUG -15 / - 6 Partial capture
10-26 18:16 80m +13 / - SQ8V -6 / +2 5 ✓ Closing observed
10-17 00:49 60m -2 / - 9A2TN - / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

160m
UTC    dB Audio  Message
014645 -12 2482  SP1BSJ DF4WQ JN39 (x2)
015700  +7  960  CQ SP1BSJ JO73
015715 +12 1400  SP1BSJ SP5EXA KO02
015715 -13 1983  SP1BSJ OM1AN JN88
015715 -21  960  SP1BSJ EC1AIJ -16
015730 +10  960  CQ SP1BSJ JO73
015745 +10 1400  SP1BSJ SP5EXA KO02
015800 +10  960  CQ SP1BSJ JO73
015815 +10 1400  SP1BSJ SP5EXA KO02
015815 -24  960  SP1BSJ EC1AIJ -16
015845  +8 1400  SP1BSJ SP5EXA KO02 (x3)
020015 -11 1256  SP1BSJ DL9KM JN68
60m
UTC    dB Audio  Message
215545  -3  996  SP1BSJ PG7R JO22
215545 -18 1238  SP1BSJ ON1JP +07 (x3)
015130 -17  993  CQ SP1BSJ JO73                        a1
015145  -1  994  SP1BSJ PC2J JO22
015200 -13  993  PC2J SP1BSJ -09
015215  +2  994  SP1BSJ PC2J R-06
015230 -14  993  PC2J SP1BSJ RR73
015245  +1  994  SP1BSJ PC2J 73
015415 -16  993  S55X SP1BSJ 73
015430  +0 1970  SP1BSJ F5RRS JN36 (x4)
80m
UTC    dB Audio  Message
014945 -12 1202  SP1BSJ ON4MAP JO20
014945  -5 1679  SP1BSJ GM6URC -03
014945  +7 2553  SP1BSJ F1PBZ +01
014945  -4  962  SP1BSJ DG5PW 73
015000 +11  962  CQ SP1BSJ JO73                        a1
015015 -10 1203  SP1BSJ ON4MAP JO20
015015  -3 1679  SP1BSJ GM6URC -12
015015  +1  459  SP1BSJ DK8HC/P -08
015030 +10  962  DK8HC/P SP1BSJ R-01
015045 -12 1202  SP1BSJ ON4MAP JO20
015045  -5 1680  SP1BSJ GM6URC -12
015045  +1  458  SP1BSJ DK8HC/P RR73
015100  +8  962  DK8HC/P SP1BSJ 73
015115  -5 1679  SP1BSJ GM6URC -12 (x2)
40m
UTC    dB Audio  Message
233615 -18  997  SP1BSJ F1IQH JN27
233645  +3 2981  SP1BSJ F4BYA JN19 (x2)
233745  -9  998  SP1BSJ R4FDK LO23
233745 +12 2981  SP1BSJ F4BYA JN19
233815  -9  998  SP1BSJ R4FDK R-07
233815 +13 2981  SP1BSJ F4BYA JN19
233845  -9  998  SP1BSJ R4FDK 73
233845  +9 2981  SP1BSJ F4BYA JN19
233945 -13 1398  SP1BSJ UR4QWW KN77 (x2)
234600 -16 1659  SP1BSJ EA5FD IM99
234630 -17 1924  SP1BSJ EA5JAH IM99
234630 -19 1658  SP1BSJ EA5FD IM99
001645  -9  998  CQ SP1BSJ JO73
10m
UTC    dB Audio  Message
114300  -2 1054  SP1BSJ CT2KCK IM59 (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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