S56UVB — 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: Slovenia Most frequent locator attributed to this token: JN76

Receiver-side FT8 activity involving S56UVB, decoded by SO8OO in southeastern Poland. 2,185 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 37 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-18.

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 2,185 FT8 messages attributed to S56UVB as the transmitting token by decoded message structure across 37 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (65%), followed by 40 m (23%) and 80 m (11%). Most decodes (100%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (85%); the estimated median was +1 dB.

Overview

2,185
Messages attributed
37
UTC dates decoded
179
Active 15-min windows
+1 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-10-18 20:47 UTC

Observed FT8 message patterns

Attributed sample
2,185 messages
Active dates
37 UTC dates
Estimated median S/N
+1 dB
Estimated 10th-90th percentile
-11 to +11 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 72, moderate (-15 to -9 dB) 264, strong (≥ -8 dB) 1,849.

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 S56UVB

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
JN76 · 1,369 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
631 km (approx.)
Last such locator decoded
2026-10-18 20:47 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 UTCBandS56UVB S/NCounterpartCounterpart S/NMsgsCapture
10-21 20:27 40m - / -3 IK0CHU +4 / - 2 ✓ Closing fragment
10-18 20:46 80m -8 / -13 ON4MAP -18 / -7 4 ✓ Full exchange observed
10-18 20:45 80m -1 / - YT4ZZ -6 / -6 3 ✓ Closing observed
10-18 20:42 80m -6 / - TA4SSK - / -16 2 Partial capture
10-18 20:30 80m -1 / - JA1BJY -7 / -18 4 ✓ Closing observed
10-18 20:26 80m -10 / - AM5GC - / -20 4 Partial capture
10-18 20:19 80m -6 / - R2BPS - / - 10 Partial capture
10-18 20:16 80m -4 / +1 9A2G +15 / +5 5 ✓ Full exchange observed
10-06 19:58 40m +1 / - BH1LKO - / - 3 Partial capture
10-06 19:54 40m +2 / - TF3VE - / -13 4 ✓ Closing fragment
10-06 19:51 40m -11 / - PA4F - / -13 2 ✓ Closing fragment
10-06 19:49 40m -4 / - F6FHZ -11 / -15 3 ✓ Closing observed
10-06 19:47 40m -11 / - IT9GJK/P - / -10 2 Partial capture
10-06 19:41 40m -10 / -3 HB9SPACE -2 / -5 5 Partial capture
10-05 21:53 40m -6 / - J48S - / -2 3 ✓ Closing fragment
10-05 21:47 40m -6 / - HL3KPJ - / - 7 Partial capture
10-05 21:43 40m -13 / - IQ9SZ/2 - / -17 6 Partial capture
10-05 21:40 40m -10 / - C5R - / -21 6 Partial capture
10-05 21:39 40m -14 / -6 BA9QQB/R -15 / -16 3 Partial capture
10-05 21:36 40m -5 / - JA4JKO - / -15 2 Partial capture
10-05 21:31 40m -1 / - DJ6OI/P - / -17 7 Partial capture
10-05 21:24 40m -4 / - UA1AQC - / +3 10 Partial capture
10-05 21:20 40m -4 / - F6FHZ -1 / -8 7 Partial capture
10-05 21:19 40m -4 / - 5B4AMM - / - 2 Partial capture
10-05 21:18 40m +7 / - TA2SKV - / -14 3 ✓ Closing fragment
10-05 21:17 40m 0 / - LU2DSL - / - 2 Partial capture
10-05 21:14 40m 0 / - BG2ATH - / - 6 Partial capture
10-05 21:12 40m -5 / - VK3AMP - / -17 3 ✓ Closing fragment
10-05 21:09 40m +5 / - N1WI - / -15 5 ✓ Closing fragment
10-05 21:08 40m -3 / - SN5N - / -15 3 ✓ Closing fragment
10-05 21:07 40m 0 / -8 AO5CV -9 / +3 3 ✓ Full exchange observed
10-05 21:06 80m - / -14 EU1EU +10 / - 2 Partial capture
10-05 21:02 80m +5 / -2 EI2KM +7 / -4 9 ✓ Full exchange observed
10-01 19:32 80m 0 / -10 II5GG +2 / -1 4 ✓ Full exchange observed
10-01 19:28 80m -7 / +1 E70SZ 0 / +1 5 ✓ Full exchange observed
09-28 19:15 80m +10 / - V51WH - / - 4 Partial capture
09-28 19:10 80m +6 / - DA6SL - / - 6 Partial capture
09-28 18:08 80m +10 / - R2DVN - / - 3 Partial capture
09-28 18:06 80m +4 / - RC3T - / - 2 Partial capture
09-28 18:00 80m +9 / - R2DVN - / - 10 Partial capture
09-28 17:58 80m - / - LB6BK -10 / - 2 Partial capture
09-28 17:57 80m +3 / - DO9YU - / -16 5 ✓ Closing fragment
09-28 17:56 80m +6 / -15 R3DQT -16 / -6 4 ✓ Full exchange observed
09-28 17:52 80m +5 / - SV8LMQ - / -12 5 ✓ Closing fragment
09-27 21:06 80m +1 / - R1BLO - / - 10 Partial capture
09-27 21:05 80m +14 / - G6PWS - / -9 2 ✓ Closing fragment
09-27 21:04 80m - / - EC3A -14 / - 2 Partial capture
09-27 21:01 80m +4 / - TA7ARH -4 / -11 6 ✓ Closing observed
09-27 21:00 80m +4 / - DJ7M - / - 2 Partial capture
09-27 20:58 80m +4 / - M6XZD - / -8 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
195115  -7 1301  RD3FY S56UVB RR73
195145 -11 1302  PA4F S56UVB -13 (x2)
195415  +2  556  TF3VE S56UVB JN76 (x4)
195745  -1 1103  RV3IN S56UVB JN76
195845  +1 2454  BH1LKO S56UVB JN76 (x3)
200115  -5  240  VO1III/P S56UVB JN76
213315 -11 2172  UT3RO S56UVB JN76
202715  +3 1328  S56UVB IK0CHU -03 (x2)
80m
UTC    dB Audio  Message
203200  -1  437  JA1BJY S56UVB 73
203315  +2  810  S56UVB G0HSP RR73
203400  -5  869  OY1HJ S56UVB JN76
203730 -11 1357  IW4DVF S56UVB 73
204200  -7  964  TA4SSK S56UVB R-16 (x2)
204500  -2  902  YT4ZZ S56UVB R-06
204515  -6  902  S56UVB YT4ZZ RR73
204530  +0  902  YT4ZZ S56UVB 73
204615 -18 1302  S56UVB ON4MAP -13
204630  -1 1302  ON4MAP S56UVB R-07
204645 -17 1302  S56UVB ON4MAP RR73
204700 -14 1302  ON4MAP S56UVB 73
204715 -14 1911  S56UVB EC3A -15
204730  -4  533  SP1D S56UVB JN76
20m
UTC    dB Audio  Message
183645 -11 2826  OH8MXJ S56UVB 73
185500  -8  995  S56UVB EA4IVO -10 (x5)
191600  -6  361  S56UVB EI2KXB -06
191615  -2  360  EI2KXB S56UVB JN76
191630  -8  360  S56UVB EI2KXB -08
191745  +1  360  EI2KXB S56UVB R-24 (x2)
191830  -1  361  S56UVB EI2KXB RR73
191845 +17  360  EI2KXB S56UVB R-24 (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

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