OK1BLU — 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: Czech Republic Most frequent locator attributed to this token: JO80

Receiver-side FT8 activity involving OK1BLU, decoded by SO8OO in southeastern Poland. 1,070 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 60 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-11-04.

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 1,070 FT8 messages attributed to OK1BLU as the transmitting token by decoded message structure across 60 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (58%), followed by 40 m (20%) and 160 m (18%). Most decodes (64%) fell within the six-hour window 20:00-02:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (87%); the estimated median was +2.2 dB.

Overview

1,070
Messages attributed
60
UTC dates decoded
137
Active 15-min windows
+2.2 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-11-04 01:54 UTC

Observed FT8 message patterns

Attributed sample
1,070 messages
Active dates
60 UTC dates
Estimated median S/N
+2.2 dB
Estimated 10th-90th percentile
-10.6 to +13 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 24, moderate (-15 to -9 dB) 118, strong (≥ -8 dB) 928.

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 OK1BLU

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
JO80 · 722 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
347 km (approx.)
Last such locator decoded
2026-11-04 01:54 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 UTCBandOK1BLU S/NCounterpartCounterpart S/NMsgsCapture
11-04 01:51 80m +6 / - EA9PB - / - 7 Partial capture
11-04 01:48 160m - / - DK7ZT -11 / - 5 Partial capture
11-04 01:46 160m -9 / - OH7KB -3 / -12 4 ✓ Closing observed
11-04 01:42 80m +2 / - R8LCM/M - / - 2 Partial capture
11-04 01:38 80m -10 / - UA9XL/P - / - 2 Partial capture
11-03 00:42 80m -4 / - EX7DY - / - 4 Partial capture
11-02 10:45 40m -10 / - M9LDX - / - 2 Partial capture
11-02 10:42 40m +1 / - F1UNR - / -19 3 ✓ Closing fragment
11-02 10:40 40m +8 / -2 RN1TV -4 / - 3 ✓ Closing observed
11-02 10:38 40m +8 / - DL8UG - / -13 2 ✓ Closing fragment
11-02 10:37 40m +3 / - DH1YBD - / - 2 Partial capture
10-26 22:01 160m -8 / +8 IV3GHY -7 / - 8 Partial capture
10-26 03:57 80m +2 / - N9UI - / - 4 Partial capture
10-26 03:51 80m +8 / - WZ4K - / - 2 Partial capture
10-26 03:48 80m +10 / - VE2LBI - / - 2 Partial capture
10-25 23:25 80m +1 / - EA8AJ - / - 2 Partial capture
10-25 23:23 80m +1 / - EA8DQE - / - 3 Partial capture
10-25 22:03 80m +7 / - RA3ICA -9 / -5 4 ✓ Closing observed
10-25 22:01 80m +13 / - OE1PHS 0 / -2 4 ✓ Closing observed
10-25 21:58 80m +5 / - DO2PY - / -23 4 ✓ Closing fragment
10-25 21:47 160m -13 / - SV7BVM - / - 8 Partial capture
10-25 21:44 160m -9 / -8 HB9DKG -7 / -19 7 ✓ Full exchange observed
10-25 21:09 80m +2 / - 5B/ES5RY - / - 4 Partial capture
10-25 21:06 80m +6 / -14 IU5HIU -12 / -7 5 ✓ Full exchange observed
10-25 21:00 80m +6 / -10 TK4QP -12 / - 8 Partial capture
10-25 20:56 80m +12 / - IK2EST - / -7 2 ✓ Closing fragment
10-25 20:52 80m +3 / - 4O4A - / - 3 Partial capture
10-25 20:47 80m -4 / - DH4NBB - / -15 3 Partial capture
10-25 20:37 80m +3 / - TK4QP - / - 3 Partial capture
10-25 20:35 80m +5 / - 5B/ES5RY - / - 3 Partial capture
10-25 20:33 80m +9 / - SX37VER - / - 3 Partial capture
10-24 21:02 40m - / -18 9K2YM -10 / - 2 Partial capture
10-24 20:42 160m - / -16 R9CS/P +11 / - 2 Partial capture
10-24 20:42 160m -2 / - IK3/UY7LA - / -12 2 Partial capture
10-24 20:40 160m -11 / -16 HF40BLP +11 / -9 5 Partial capture
10-23 20:47 80m -6 / - DC6REH - / -21 6 ✓ Closing fragment
10-23 00:50 40m - / -13 V47NT -18 / - 5 ✓ Closing fragment
10-23 00:36 40m - / -21 HI8ML 0 / - 2 ✓ Closing fragment
10-23 00:13 160m -9 / -12 UA4FKT -2 / -9 5 ✓ Full exchange observed
10-22 20:33 160m -8 / -17 S52R -6 / -18 6 ✓ Full exchange observed
10-22 20:30 160m -10 / - SP2HNF +23 / -24 3 ✓ Closing observed
10-21 23:29 80m +13 / - R4FJ 0 / -5 7 Partial capture
10-21 23:22 80m +9 / -18 AP2HA -17 / -19 14 ✓ Full exchange observed
10-21 20:42 80m +9 / - AP5ARS - / - 5 Partial capture
10-21 20:34 80m +4 / - EH6DSY - / -23 8 ✓ Closing fragment
10-21 20:31 80m +10 / -18 OD5ZZ -9 / -14 2 Partial capture
10-21 20:30 80m 0 / - EH6DSY - / - 2 Partial capture
10-21 20:25 80m +2 / -5 UW5KW +10 / -12 6 ✓ Full exchange observed
10-21 20:23 80m -1 / -7 YU7AS +8 / -10 5 ✓ Full exchange observed
10-21 20:21 80m +5 / - 4L7T - / - 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
004245  +1 1116  EX7DY OK1BLU JO80 (x3)
013815  -9 2227  UA9XL/P OK1BLU JO80 (x2)
013915 -11 2216  RA6FCU/P OK1BLU JO80
014215  +0 1882  R8LCM/M OK1BLU JO80 (x2)
015130  +3 1882  EA9PB OK1BLU JO80 (x7)
160m
UTC    dB Audio  Message
220145 -10 1446  OK1BLU IV3GHY +02
220200  -9 1445  IV3GHY OK1BLU JO80
220215  -3 1446  OK1BLU IV3GHY -05
220230 -11 1445  IV3GHY OK1BLU JO80
220315  +0 1259  OK1BLU IV3GHY -04 (x2)
014630 -14 1930  OH7KB OK1BLU JO80 (x2)
014745  -3 1382  OK1BLU OH7KB RR73
014800  -8 1930  OH7KB OK1BLU 73
014815  -6 1855  OK1BLU DK7ZT JO40 (x5)
40m
UTC    dB Audio  Message
210230  -9  786  OK1BLU 9K2YM -18 (x3)
103745  +3 2424  DH1YBD OK1BLU JO80 (x2)
103845  +9 2727  DL8UG OK1BLU -13 (x2)
104000  -3 2724  OK1BLU RN1TV -02 (x2)
104045  +8 2725  RN1TV OK1BLU 73
104230  +1 2515  F1UNR OK1BLU JO80 (x3)
104515  -6 1541  M9LDX OK1BLU JO80 (x2)
10m
UTC    dB Audio  Message
124915 -21 1318  OK1BLU OE9SJI -19 (x2)
142815 -21 1710  OK1BLU A61FJ RR73
105600 -13 1263  OK1BLU CU2AP -20 (x3)
20m
UTC    dB Audio  Message
162430 -11  484  OK1BLU XU7O -17
162445  +6 2180  XU7O OK1BLU R-11
162500 -10  483  OK1BLU XU7O -17
162515  +6 2180  XU7O OK1BLU R-11 (x6)
162830  -8  483  OK1BLU XU7O RR73
162845  -5  695  XU7O OK1BLU R-09 (x2)
162930  -6  484  OK1BLU XU7O RR73
210830  -9  526  OK1BLU RI1FJL -05 (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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